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$define{doc_title}{Hardware}$ $include{"Book.h"}$ $define{doc_author}{Mark Pruden & Wayne Warthen}$ $define{doc_authmail}{}$

Supported Hardware Platforms

This section contains a summary of the system configuration target for each of the pre-built ROM images included in the RomWBW distribution.

It is intended to help you select the correct ROM image and understand the basic hardware components supported. Detailed hardware system configuration information should be obtained from your system provider/designer.

The table below summarizes the hardware platforms currently supported by RomWBW along with the standard pre-built ROM image(s).

Description Bus ROM Image File Baud Rate
[RetroBrew Z80 SBC]^1^ ECB SBC_std.rom 38400
[RetroBrew Z80 SimH]^1^ - SBC_simh.rom 38400
[RetroBrew N8 Z180 SBC]^1^ (date >= 2312) ECB N8_std.rom 38400
[Zeta Z80 SBC]^2^, ParPortProp - ZETA_std.rom 38400
[Zeta V2 Z80 SBC]^2^, ParPortProp - ZETA2_std.rom 38400
[Mark IV Z180 SBC]^3^ ECB MK4_std.rom 38400
[RCBus Z80 CPU Module]^4^, 512K RAM/ROM RCBus RCZ80_std.rom 115200
[RCBus Z80 CPU Module]^4^, 512K w/KIO RCBus RCZ80_kio_std.rom 115200
[RCBus Z180 CPU Module]^4^ w/ ext banking RCBus RCZ180_ext_std.rom 115200
[RCBus Z180 CPU Module]^4^ w/ native banking RCBus RCZ180_nat_std.rom 115200
[RCBus Z280 CPU Module]^4^ w/ ext banking RCBus RCZ280_ext_std.rom 115200
[RCBus Z280 CPU Module]^4^ w/ native banking RCBus RCZ280_nat_std.rom 115200
[RCBus eZ80 CPU Module]^13^, 512K RAM/ROM RCBus RCEZ80_std.rom 115200
[Easy Z80 SBC]^2^ RCBus RCZ80_easy_std.rom 115200
[Tiny Z80 SBC]^2^ RCBus RCZ80_tiny_std.rom 115200
[Z80-512K CPU/RAM/ROM Module]^2^ RCBus RCZ80_skz_std.rom 115200
[Small Computer SC126 Z180 SBC]^5^ BP80 SCZ180_sc126_std.rom 115200
[Small Computer SC130 Z180 SBC]^5^ RCBus SCZ180_sc130_std.rom 115200
[Small Computer SC131 Z180 Pocket Comp]^5^ - SCZ180_sc131_std.rom 115200
[Small Computer SC140 Z180 CPU Module]^5^ Z50 SCZ180_sc140_std.rom 115200
[Small Computer SC503 Z180 CPU Module]^5^ Z50 SCZ180_sc503_std.rom 115200
[Small Computer SC700 Z180 CPU Module]^5^ RCBus SCZ180_sc700_std.rom 115200
[Dyno Z180 SBC]^6^ Dyno DYNO_std.rom 38400
[Nhyodyne Z80 MBC]^1^ MBC MBC_std.rom 38400
[Rhyophyre Z180 SBC]^1^ - RPH_std.rom 38400
[Z80 ZRC CPU Module]^7^ RCBus RCZ80_zrc_std.rom 115200
[Z80 ZRC CPU Module]^7^ ROMless RCBus RCZ80_zrc_ram_std.rom 115200
[Z80 ZRC512 CPU Module]^7^ RCBus RCZ80_zrc512_std.rom 115200
[Z80 EaZy80-512 CPU Module]^7^ RCBus RCZ80_ez512_std.rom 115200
[Z80 K80W CPU Module]^7^ RCBus RCZ80_k8w_std.rom 115200
[Z180 Z1RCC CPU Module]^7^ RCBus RCZ180_z1rcc_std.rom 115200
[Z280 ZZRCC CPU Module]^7^ RCBus RCZ280_zzrcc_std.rom 115200
[Z280 ZZRCC CPU Module]^7^ ROMless RCBus RCZ280_zzrcc_ram_std.rom 115200
[Z280 ZZ80MB SBC]^7^ RCBus RCZ280_zz80mb_std.rom 115200
[Z80-Retro SBC]^8^ - Z80RETRO_std.rom 38400
[S100 Computers Z180]^9^ S100 S100_std.rom 57600
[Duodyne Z80 System]^1^ Duo DUO_std.rom 38400
[Heath H8 Z80 System]^10^ H8 HEATH_std.rom 115200
[EP Mini-ITX Z180]^11^ RCBus? EPITX_std.rom 115200
[NABU w/ RomWBW Option Board]^10^ NABU NABU_std.rom 115200
[S100 FPGA Z80]^9^ S100 FZ80_std.rom 9600
[Genesis STD Z180]^12^ STD GMZ180_std.rom 115200

| ^1^Designed by Andrew Lynch | ^2^Designed by Sergey Kiselev | ^3^Designed by John Coffman | ^4^RCBus compliant (multiple products/designers) | ^5^Designed by Stephen Cousins | ^6^Designed by Steve Garcia | ^7^Designed by Bill Shen | ^8^Designed by Peter Wilson | ^9^Designed by John Monahan | ^10^Designed by Les Bird | ^11^Designed by Alan Cox | ^12^Designed by Doug Jackson | ^13^Designed by Dean Netherton

RCBus refers to Spencer Owen's RC2014 bus specification and derivatives including RC26, RC40, RC80, and BP80.

The RCBus Z180 & Z280 require a separate RAM/ROM memory module. There are two types of these modules and you must pick the correct ROM for your type of memory module. The first option is the same as the 512K RAM/ROM module for RC/BP80 Bus. This is called external ("ext") because the bank switching is performed externally from the CPU. The second type of RAM/ROM module has no bank switching logic -- this is called native ("nat") because the CPU itself provides the bank switching logic. Only Z180 and Z280 CPUs have the ability to do bank switching in the CPU, so the ext/nat selection only applies to them. Z80 CPUs have no built-in bank switching logic, so they are always configured for external bank switching.

The standard ROM images will detect and install support for certain devices and peripherals that are on-board or frequently used with each platform. If the device or peripheral is not detected at boot, the ROM will simply bypass support appropriately.

In some cases, support for multiple hardware components with potentially conflicting resource usage are handled by a single ROM image. It is up to the user to ensure that no conflicting hardware is in use.

All pre-built ROM images are pure binary files (they are not "hex" files). They are intended to be programmed starting at the very start of the ROM chip (address 0). Most of the pre-built images are 512KB in size. If your system utilizes a larger ROM, you can just program the image into the first 512KB of the ROM for now.

\clearpage{=latex}

Platform Configurations

RetroBrew Z80 SBC

ROM Image File: SBC_std.rom
Default CPU Speed 8.000 MHz
Interrupts None
System Timer None
Serial Default 38400 Baud
Memory Manager SBC
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=112
  • UART: MODE=SBC, IO=104
  • UART: MODE=CAS, IO=128
  • UART: MODE=MFP, IO=104
  • UART: MODE=4UART, IO=192
  • UART: MODE=4UART, IO=200
  • UART: MODE=4UART, IO=208
  • UART: MODE=4UART, IO=216
  • SIO MODE=ZP, IO=176, CHANNEL A
  • SIO MODE=ZP, IO=176, CHANNEL B
  • VGA: IO=224, KBD MODE=PS/2, KBD IO=224
  • CVDU: MODE=ECB, IO=224, KBD MODE=PS/2, KBD IO=226
  • CVDU occupies 905 bytes.
  • KBD: ENABLED
  • PRP: IO=168
  • PRPCON: ENABLED
  • PRPSD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=DIO, IO=54, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=DIO, IO=54, DRIVE 1, TYPE=3.5" HD
  • PPIDE: IO=96, MASTER
  • PPIDE: IO=96, SLAVE

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

RetroBrew Z80 SimH

ROM Image File: SBC_simh.rom
Default CPU Speed 8.000 MHz
Interrupts Mode 1
System Timer SimH
Serial Default 38400 Baud
Memory Manager SBC
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • SIMRTC: IO=254
  • UART: MODE=SBC, IO=104
  • UART: MODE=CAS, IO=128
  • UART: MODE=MFP, IO=104
  • UART: MODE=4UART, IO=192
  • UART: MODE=4UART, IO=200
  • UART: MODE=4UART, IO=208
  • UART: MODE=4UART, IO=216
  • SIO MODE=ZP, IO=176, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=ZP, IO=176, CHANNEL B, INTERRUPTS ENABLED
  • FONTS occupy 0 bytes.
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • HDSK: IO=253, DEVICE COUNT=2

Notes:

  • Image for SimH emulator
  • CPU speed and Serial configuration not relevant in emulator

\clearpage{=latex}

RetroBrew N8 Z180 SBC

ROM Image File: N8_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 38400 Baud
Memory Manager N8
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=136
  • ASCI: IO=64, INTERRUPTS ENABLED
  • ASCI: IO=65, INTERRUPTS ENABLED
  • UART: MODE=CAS, IO=128
  • UART: MODE=4UART, IO=192
  • UART: MODE=4UART, IO=200
  • UART: MODE=4UART, IO=208
  • UART: MODE=4UART, IO=216
  • TMS: MODE=N8, IO=152
  • PPK: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=N8, IO=140, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=N8, IO=140, DRIVE 1, TYPE=3.5" HD
  • SD: MODE=CSIO, IO=136, UNITS=1
  • AY38910: MODE=N8, IO=156, CLOCK=1789772 HZ

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present
  • SD Card interface is configured for CSIO (N8 date code >= 2312)

\clearpage{=latex}

Zeta Z80 SBC

ROM Image File: ZETA_std.rom
Default CPU Speed 8.000 MHz
Interrupts None
System Timer None
Serial Default 38400 Baud
Memory Manager SBC
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=112
  • UART: MODE=SBC, IO=104
  • PPP: IO=96
  • PPPCON: ENABLED
  • PPPSD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=DIO, IO=54, DRIVE 0, TYPE=3.5" HD

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present
  • If ParPortProp is installed, initial console output is determined by JP1:
    • Shorted: console to on-board serial port
    • Open: console to ParPortProp video and keyboard

\clearpage{=latex}

Zeta V2 Z80 SBC

ROM Image File: ZETA2_std.rom
Default CPU Speed 8.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 38400 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=112
  • UART: MODE=SBC, IO=104
  • PPP: IO=96
  • PPPCON: ENABLED
  • PPPSD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=ZETA2, IO=48, DRIVE 0, TYPE=3.5" HD
  • CTC: IO=32, TIMER MODE=COUNTER, DIVISOR=18432, HI=256, LO=72, INTERRUPTS ENABLED

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present
  • If ParPortProp is installed, initial console output is determined by JP1:
    • Shorted: console to on-board serial port
    • Open: console to ParPortProp video and keyboard

\clearpage{=latex}

Mark IV Z180 SBC

ROM Image File: MK4_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 38400 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=138
  • ASCI: IO=64, INTERRUPTS ENABLED
  • ASCI: IO=65, INTERRUPTS ENABLED
  • UART: MODE=CAS, IO=128
  • UART: MODE=MFP, IO=104
  • UART: MODE=4UART, IO=192
  • UART: MODE=4UART, IO=200
  • UART: MODE=4UART, IO=208
  • UART: MODE=4UART, IO=216
  • VGA: IO=224, KBD MODE=PS/2, KBD IO=224
  • CVDU: MODE=ECB, IO=224, KBD MODE=PS/2, KBD IO=226
  • KBD: ENABLED
  • PRP: IO=168
  • PRPCON: ENABLED
  • PRPSD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=DIDE, IO=42, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=DIDE, IO=42, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=MK4, IO=128, MASTER
  • IDE: MODE=MK4, IO=128, SLAVE
  • SD: MODE=MK4, IO=137, UNITS=1

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

RCBus Z80 CPU Module

ROM Image File: RCZ80_std.rom
Default CPU Speed 7.372 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

ROM Image File: RCZ80_kio_std.rom
Default CPU Speed 7.372 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=STD, IO=136, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=STD, IO=136, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=132, TIMER MODE=TIMER/16, DIVISOR=9216, HI=256, LO=36, INTERRUPTS ENABLED

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present
  • SIO Serial baud rate managed by CTC

\clearpage{=latex}

RCBus Z180 CPU Module

ROM Image File: RCZ180_ext_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • For use with Z2 bank switched memory board (Z2 external memory management)
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

ROM Image File: RCZ180_nat_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • For use with linear memory board (Z180 native memory management)
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

RCBus Z280 CPU Module

ROM Image File: RCZ280_ext_std.rom
Default CPU Speed 6.000 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • Z2U: IO=16
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • ACIA: IO=128, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • For use with Z2 bank switched memory board (Z2 external memory management)

\clearpage{=latex}

ROM Image File: RCZ280_nat_std.rom
Default CPU Speed 6.000 MHz
Interrupts Mode 3
System Timer Z280
Serial Default 115200 Baud
Memory Manager Z280
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • Z2U: IO=16, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • For use with linear memory board (Z280 native memory management)

\clearpage{=latex}

RCBus eZ80 CPU Module

ROM Image File: RCEZ80_std.rom
Default CPU Speed 20.000 MHz
Interrupts Mode 1
System Timer EZ80
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • LCD: IO=218
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136
  • EZ80 DRIVERS

Notes:

\clearpage{=latex}

Easy Z80 SBC

ROM Image File: RCZ80_easy_std.rom
Default CPU Speed 10.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • INTRTC: ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=STD, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=STD, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136, TIMER MODE=COUNTER, DIVISOR=18432, HI=256, LO=72, INTERRUPTS ENABLED

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Tiny Z80 SBC

ROM Image File: RCZ80_tiny_std.rom
Default CPU Speed 16.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=STD, IO=24, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=STD, IO=24, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=144, MASTER
  • IDE: MODE=RC, IO=144, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=16, TIMER MODE=COUNTER, DIVISOR=18432, HI=256, LO=72, INTERRUPTS ENABLED

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80-512K CPU/RAM/ROM Module

ROM Image File: RCZ80_skz_std.rom
Default CPU Speed 7.372 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Small Computer SC126 Z180 SBC

ROM Image File: SCZ180_sc126_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=13, SWIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=SC, IO=12, UNITS=1
  • AY38910: MODE=RCZ180, IO=104, CLOCK=1789772 HZ

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Small Computer SC130 Z180 SBC

ROM Image File: SCZ180_sc130_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=SC, IO=12, UNITS=1
  • AY38910: MODE=RCZ180, IO=104, CLOCK=1789772 HZ

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Small Computer SC131 Z180 Pocket Comp

ROM Image File: SCZ180_sc131_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • SD: MODE=SC, IO=12, UNITS=1

Notes:

\clearpage{=latex}

Small Computer SC140 Z180 CPU Module

ROM Image File: SCZ180_sc140_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=160, SWIO=160
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=144, MASTER
  • IDE: MODE=RC, IO=144, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=SC, IO=12, UNITS=1

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Small Computer SC503 Z180 CPU Module

ROM Image File: SCZ180_sc503_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=160, SWIO=160
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=144, MASTER
  • IDE: MODE=RC, IO=144, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=SC, IO=12, UNITS=1

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Small Computer SC700 Z180 CPU Module

ROM Image File: SCZ180_sc700_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=SC, IO=12, UNITS=1
  • AY38910: MODE=RCZ180, IO=104, CLOCK=1789772 HZ

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Dyno Z180 SBC

ROM Image File: DYNO_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 38400 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • BQRTC: IO=80
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=DYNO, IO=132, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=DYNO, IO=132, DRIVE 1, TYPE=3.5" HD
  • PPIDE: IO=76, MASTER
  • PPIDE: IO=76, SLAVE

Notes:

\clearpage{=latex}

Nhyodyne Z80 MBC

ROM Image File: MBC_std.rom
Default CPU Speed 8.000 MHz
Interrupts None
System Timer None
Serial Default 38400 Baud
Memory Manager MBC
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • PKD: IO=96
  • DSRTC: MODE=STD, IO=112
  • UART: MODE=SBC, IO=104
  • UART: MODE=DUAL, IO=128
  • UART: MODE=DUAL, IO=136
  • SIO MODE=ZP, IO=176, CHANNEL A
  • SIO MODE=ZP, IO=176, CHANNEL B
  • PIO: IO=184, CHANNEL A
  • PIO: IO=184, CHANNEL B
  • PIO: IO=188, CHANNEL A
  • PIO: IO=188, CHANNEL B
  • LPT: MODE=SPP, IO=232
  • CVDU: MODE=MBC, IO=224, KBD MODE=PS/2, KBD IO=226
  • TMS: MODE=MBC, IO=152
  • KBD: ENABLED
  • ESP: IO=156
  • ESPCON: ENABLED
  • ESPSER: DEVICE=0
  • ESPSER: DEVICE=1
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=MBC, IO=48, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=MBC, IO=48, DRIVE 1, TYPE=3.5" HD
  • PPIDE: IO=96, MASTER
  • PPIDE: IO=96, SLAVE
  • SPK: IO=112
  • CTC: IO=176

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Rhyophyre Z180 SBC

ROM Image File: RPH_std.rom
Default CPU Speed 18.432 MHz
Interrupts None
System Timer None
Serial Default 38400 Baud
Memory Manager RPH
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=132
  • ASCI: IO=64
  • ASCI: IO=65
  • GDC: MODE=RPH, DISPLAY=EGA, IO=144
  • KBD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • PPIDE: IO=136, MASTER
  • PPIDE: IO=136, SLAVE

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80 ZRC CPU Module

ROM Image File: RCZ80_zrc_std.rom
Default CPU Speed 14.745 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager ZRC
ROM Size 512 KB
RAM Size 1536 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • ZRC is actually contains no ROM and 2MB of RAM. The first 512KB of RAM is loaded from disk and then handled like ROM.
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

ROM Image File: RCZ80_zrc_ram_std.rom
Default CPU Speed 14.745 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager ZRC
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • ROMless boot -- HBIOS is loaded from disk at boot
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80 ZRC512 CPU Module

ROM Image File: RCZ80_zrc512_std.rom
Default CPU Speed 22.000 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager ZRC
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • ROMless boot -- HBIOS is loaded from disk at boot
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80 EaZy80-512 CPU Module

ROM Image File: RCZ80_ez512_std.rom
Default CPU Speed 22.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 115200 Baud
Memory Manager EZ512
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • LCD: IO=218, SIZE=20X4
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=STD, IO=8, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=STD, IO=8, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=EZ512, IO=2, UNITS=1
  • KIO: IO=0
  • CTC: IO=4, TIMER MODE=TIMER/16, DIVISOR=4608, HI=256, LO=18, INTERRUPTS ENABLED

Notes:

  • HBIOS is loaded from disk at boot by ROM monitor
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80 K80W CPU Module

ROM Image File: RCZ80_k8w_std.rom
Default CPU Speed 22.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • LCD: IO=218, SIZE=20X4
  • DSRTC: MODE=K80W, IO=192
  • UART: IO=128
  • UART: IO=136
  • UART: IO=160
  • UART: IO=168
  • SIO MODE=STD, IO=136, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=STD, IO=136, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • SD: MODE=EZ512, IO=130, UNITS=1
  • KIO: IO=128
  • CTC: IO=132, TIMER MODE=TIMER/16, DIVISOR=9216, HI=256, LO=36, INTERRUPTS ENABLED

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z180 Z1RCC CPU Module

ROM Image File: RCZ180_z1rcc_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=12
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • ROMless boot -- HBIOS is loaded from disk at boot
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z280 ZZRCC CPU Module

ROM Image File: RCZ280_zzrcc_std.rom
Default CPU Speed 14.745 MHz
Interrupts Mode 3
System Timer Z280
Serial Default 115200 Baud
Memory Manager Z280
ROM Size 256 KB
RAM Size 256 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • Z2U: IO=16, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • ZZRCC actually contains no ROM and 512KB of RAM. The first 256KB of RAM is loaded from disk and then handled like ROM.
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

ROM Image File: RCZ280_zzrcc_ram_std.rom
Default CPU Speed 14.745 MHz
Interrupts Mode 3
System Timer Z280
Serial Default 115200 Baud
Memory Manager Z280
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • Z2U: IO=16, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • ROMless boot -- HBIOS is loaded from disk at boot
  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z280 ZZ80MB SBC

ROM Image File: RCZ280_zz80mb_std.rom
Default CPU Speed 12.000 MHz
Interrupts Mode 3
System Timer Z280
Serial Default 115200 Baud
Memory Manager Z280
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • Z2U: IO=16, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • VRC: IO=0, KBD MODE=VRC, KBD IO=244
  • KBD: ENABLED
  • CH: IO=62
  • CH: IO=60
  • CHUSB: IO=62
  • CHUSB: IO=60
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Z80-Retro SBC

ROM Image File: Z80RETRO_std.rom
Default CPU Speed 14.745 MHz
Interrupts Mode 2
System Timer None
Serial Default 38400 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • SIO MODE=Z80R, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=Z80R, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • SD: MODE=, IO=104, UNITS=1
  • CTC: IO=64

Notes:

\clearpage{=latex}

S100 Computers Z180

ROM Image File: S100_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 57600 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • SCON: IO=0
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • SD: MODE=SC, IO=12, UNITS=1

Notes:

  • Z180 SBC SW2 (IOBYTE) Dip Switches:
Bit Setting Function
0 Off Use Z180 ASCI Channel A for console
On Use Propeller Console
1 Off Boot to RomWBW Boot Loader
On Boot to S100 Monitor

\clearpage{=latex}

Duodyne Z80 System

ROM Image File: DUO_std.rom
Default CPU Speed 8.000 MHz
Interrupts Mode 2
System Timer CTC
Serial Default 38400 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=148
  • PCF: IO=86
  • UART: MODE=SBC, IO=88
  • UART: MODE=AUX, IO=168
  • UART: MODE=DUAL, IO=112
  • UART: MODE=DUAL, IO=120
  • SIO MODE=ZP, IO=96, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=ZP, IO=96, CHANNEL B, INTERRUPTS ENABLED
  • PIO: IO=104, CHANNEL A
  • PIO: IO=104, CHANNEL B
  • PIO: IO=108, CHANNEL A
  • PIO: IO=108, CHANNEL B
  • LPT: MODE=SPP, IO=72
  • TMS: MODE=MBC, IO=160
  • DMA: MODE=DUO, IO=64
  • CH: IO=78
  • CHUSB: IO=78
  • CHSD: IO=78
  • ESP: IO=156
  • ESPCON: ENABLED
  • ESPSER: DEVICE=0
  • ESPSER: DEVICE=1
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=DUO, IO=128, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=DUO, IO=128, DRIVE 1, TYPE=3.5" HD
  • PPIDE: IO=136, MASTER
  • PPIDE: IO=136, SLAVE
  • SD: MODE=, IO=140, UNITS=1
  • SPK: IO=148
  • CTC: IO=96, TIMER MODE=COUNTER, DIVISOR=18432, HI=256, LO=72, INTERRUPTS ENABLED
  • AY38910: MODE=DUO, IO=164, CLOCK=1789772 HZ

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

Heath H8 Z80 System

ROM Image File: HEATH_std.rom
Default CPU Speed 7.372 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=0, SWIO=0
  • DSRTC: MODE=STD, IO=192
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • SIO MODE=RC, IO=128, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=128, CHANNEL B, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL A, INTERRUPTS ENABLED
  • SIO MODE=RC, IO=132, CHANNEL B, INTERRUPTS ENABLED
  • ACIA: IO=128, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=RCWDC, IO=80, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=RCWDC, IO=80, DRIVE 1, TYPE=3.5" HD
  • IDE: MODE=RC, IO=16, MASTER
  • IDE: MODE=RC, IO=16, SLAVE
  • PPIDE: IO=32, MASTER
  • PPIDE: IO=32, SLAVE
  • CTC: IO=136

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

\clearpage{=latex}

EP Mini-ITX Z180

ROM Image File: EPITX_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • UART: MODE=RC, IO=160
  • UART: MODE=RC, IO=168
  • TMS: MODE=MSX, IO=152
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • FD: MODE=EPFDC, IO=72, DRIVE 0, TYPE=3.5" HD
  • FD: MODE=EPFDC, IO=72, DRIVE 1, TYPE=3.5" HD
  • SD: MODE=, IO=66, UNITS=1

Notes:

\clearpage{=latex}

NABU w/ RomWBW Option Board

ROM Image File: NABU_std.rom
Default CPU Speed 3.580 MHz
Interrupts Mode 1
System Timer None
Serial Default 115200 Baud
Memory Manager Z2
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • UART: MODE=NABU, IO=72
  • TMS: MODE=NABU, IO=160
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • PPIDE: IO=96, MASTER
  • PPIDE: IO=96, SLAVE
  • AY38910: MODE=NABU, IO=65, CLOCK=1789772 HZ

Notes:

  • TMS video assumes F18A replacement for TMS9918

\clearpage{=latex}

S100 FPGA Z80

ROM Image File: FZ80_std.rom
Default CPU Speed 8.000 MHz
Interrupts None
System Timer None
Serial Default 9600 Baud
Memory Manager Z2
ROM Size 0 KB
RAM Size 512 KB

Supported Hardware

  • FP: LEDIO=255
  • SSER: IO=52
  • SCON: IO=0
  • MD: TYPE=RAM
  • PPIDE: IO=48, MASTER
  • PPIDE: IO=48, SLAVE
  • FP: LEDIO=255
  • DS5RTC: RTCIO=104, IO=104
  • SSER: IO=52
  • SCON: IO=0
  • MD: TYPE=RAM
  • PPIDE: IO=48, MASTER
  • PPIDE: IO=48, SLAVE
  • SD: MODE=FZ80, IO=108, UNITS=2

Notes:

  • Requires matching FPGA code

Genesis STD Z180

ROM Image File: GMZ180_std.rom
Default CPU Speed 18.432 MHz
Interrupts Mode 2
System Timer Z180
Serial Default 115200 Baud
Memory Manager Z180
ROM Size 512 KB
RAM Size 512 KB

Supported Hardware

  • DSRTC: MODE=STD, IO=132
  • INTRTC: ENABLED
  • ASCI: IO=192, INTERRUPTS ENABLED
  • ASCI: IO=193, INTERRUPTS ENABLED
  • MD: TYPE=RAM
  • MD: TYPE=ROM
  • IDE: MODE=GIDE, IO=32, MASTER
  • IDE: MODE=GIDE, IO=32, SLAVE
  • SD: MODE=GM, IO=132, UNITS=1

Notes:

  • CPU speed will be dynamically measured at startup if DSRTC is present

Device Drivers

This section briefly describes each of the possible devices that may be discovered by RomWBW in your system.

Character

ID Description
ACIA MC68B50 Asynchronous Communications Interface Adapter
ASCI Zilog Z180 CPU Built-in Serial Ports
DUART SCC2681 or compatible Dual UART
EF EF9345 Video Display Controller
ESPCON ESP32 Firmware-based Video Console
ESPSER ESP32 Firmware-based Serial Interface
LPT Parallel I/O Controller
PIO Zilog Parallel Interface Controller
PPPCON ParPortProp Serial Console Interface
PRPCON PropIO Serial Console Interface
SCON S100 Console
SIO Zilog Serial Port Interface
SSER Simple Serial Interface
UART 16C550 Family Serial Interface
USB-FIFO FT232H-based ECB USB FIFO
Z2U Zilog Z280 CPU Built-in Serial Ports

By default, RomWBW will use the first available character device it discovers for the initial console. The following character devices are scanned in the order shown. The available character devices depend on the active platform and configuration.

#. SSET: Simple Serial Interface #. ASCI: Zilog Z180 CPU Built-in Serial Ports #. Z2U: Zilog Z280 CPU Built-in Serial Ports #. UART: 16C550 Family Serial Interface #. DUART: SCC2681 or compatible Dual UART #. SIO: Zilog Serial Port Interface #. ACIA: MC68B50 Asynchronous Communications Interface Adapter #. USB-FIFO: FT232H-based ECB USB FIFO

Disk

ID Description
CHSD CH37x SD Card Interface
CHUSB CH37x USB Drive Interface
FD 8272 or compatible Floppy Disk Controller
HDSK SIMH Simulator Hard Disk
IDE IDE/ATA/ATAPI Hard Disk Interface
IMM Zip Drive on PPI (IMM variant)
MD ROM/RAM Disk
PPA Zip Drive on PPI (PPA variant)
PPIDE 8255 IDE/ATA/ATAPI Hard Disk Interface
PPPSD ParPortProp SD Card Interface
PRPSD PropIO SD Card Interface
RF RAM Floppy Disk Interface
SD SD Card Interface
SYQ Iomega SparQ Drive on PPI

Video

ID Description
CVDU MC8563-based Video Display Controller
FV S100 FPGA Z80 Onboard VGA/Keyboard
GDC uPD7220 Video Display Controller
TMS TMS9918/38/58 Video Display Controller
VDU MC6845 Family Video Display Controller
VGA HD6445CP4-based Video Display Controller
VRC VGARC Video Display Controller

Keyboard

ID Description
KBD 8242 PS/2 Keyboard Controller
MSXKYB MSX Compliant Matrix Keyboard
NABUKB NABU Keyboard
PPK Matrix Keyboard

Audio

ID Description
AY AY-3-8910/YM2149 Programmable Sound Generator
SN76489 SN76489 Programmable Sound Generator
SPK Bit-bang Speaker
YM YM2612 Programmable Sound Generator

RTC (RealTime Clock)

ID Description
BQRTC BQ4845P Real Time Clock
DS5RTC Maxim DS1305 SPI Real-Time Clock w/ NVRAM
DS7RTC Maxim DS1307 PCF I2C Real-Time Clock w/ NVRAM
DS1501RTC Maxim DS1501/DS1511 Watchdog Real-Time Clock
DSRTC Maxim DS1302 Real-Time Clock w/ NVRAM
INTRTC Interrupt-based Real Time Clock
PCF PCF8584-based I2C Real-Time Clock
RP5C01 Ricoh RPC01A Real-Time Clock w/ NVRAM
SIMRTC SIMH Simulator Real-Time Clock

DsKy (DiSplay KeYpad)

ID Description
FP Simple LED & Switch Front Panel
GM7303 Prolog 7303 derived Display/Keypad
H8P Heath H8 Display/Keypad
ICM ICM7218-based Display/Keypad on PPI
LCD Hitachi HD44780-based LCD Display
PKD P8279-based Display/Keypad on PPI

System

ID Description
CH CH375/376 USB Interface Controller
CTC Zilog Clock/Timer
DMA Zilog DMA Controller
ESP ESP32 Firmware-based interface
KIO Zilog Serial/ Parallel Counter/Timer
PPP ParPortProp Host Interface Controller
PRP PropIO Host Interface Controller

UNA Hardware BIOS

John Coffman has produced a new generation of hardware BIOS called UNA. The standard RomWBW distribution includes its own hardware BIOS. However, RomWBW can alternatively be constructed with UNA as the hardware BIOS portion of the ROM. If you wish to use the UNA variant of RomWBW, then just program your ROM with the ROM image called "UNA_std.rom" in the Binary directory. This one image is suitable on all of the platforms and hardware UNA supports.

UNA is customized dynamically using a ROM based setup routine and the setup is persisted in the system NVRAM of the RTC chip. This means that the single UNA-based ROM image can be used on most of the RetroBrew platforms and is easily customized. UNA also supports FAT file system access that can be used for in-situ ROM programming and loading system images.

While John is likely to enhance UNA over time, there are currently a few things that UNA does not support:

  • Floppy Drives
  • Terminal Emulation
  • Zeta 1, N8, RCBus, Easy Z80, and Dyno Systems
  • Some older support boards

The UNA version embedded in RomWBW is the latest production release of UNA. RomWBW will be updated with John's upcoming UNA release with support for VGA3 as soon as it reaches production status.

Please refer to the UNA BIOS Firmware Page for more information on UNA.

UNA Usage Notes

  • At startup, UNA will display a prompt similar to this:

    Boot UNA unit number or ROM? [R,X,0..3] (R):

    You generally want to choose 'R' which will then launch the RomWBW loader. Attempting to boot from a disk using a number at the UNA prompt will only work for the legacy (hd512) disk format. However, if you go to the RomWBW loader, you will be able to perform a disk boot on either disk format.

  • The disk images created and distributed with RomWBW do not have the correct system track code for UNA. In order to boot to disk under UNA, you must first use SYSCOPY to update the system track of the target disk. The UNA ROM disk has the correct system track files for UNA: CPM.SYS and ZSYS.SYS. So, you can boot a ROM OS and then use one of these files to update the system track.

  • Only Z-System and CP/M 2 are available OSes under UNA at this time. Since NZ-COM launches from CP/M 2, it is usable. p-System is not usable under UNA.

  • Some of the RomWBW-specific applications are not UNA compatible.

Errata

The following errata apply to $doc_product$ $doc_ver$:

  • The use of high density floppy disks requires a CPU speed of 8 MHz or greater.

  • The PropIO support is based on RomWBW specific firmware. Be sure to program/update your PropIO firmware with the corresponding firmware image provided in the Binary directory of the RomWBW distribution.

  • Reading bytes from the video memory of the VDU board (not Color VDU) appears to be problematic. This is only an issue when the driver needs to scroll a portion of the screen which is done by applications such as WordStar or ZDE. You are likely to see screen corruption in this case.

  • The RomWBW TUNE application will detect an AY-3-8910/YM2149 Sound Module regardless of whether support for it is included in the RomWBW HBIOS configuration.