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19 lines
980 B
19 lines
980 B
The table below can be used to determine the correct value for CLKDIV AND CNTLB
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in an Z180 (N8) configuration file. OSC Freq refers to the hardware clock
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oscillator frequency you are using. You can then choose a CLKDIV value which
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will result in the CPU speed (frequency) shown below the oscillator frequency.
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Using your oscillator frequency (OSC) and chosen value for CLKDIV, you can
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use the appropriate column to derive values to use for CNTLB for different
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baud rates.
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----- CLKDIV = 0 ----- ----- CLKDIV = 1 -----
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OSC Freq (MHz) 6.144 12.288 18.432 6.144 12.288 18.432
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CPU Freq (MHz) 3.072 6.144 9.216 6.144 12.288 18.432
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1200 baud 04H 05H 24H 05H 06H 25H
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2400 baud 03H 04H 23H 04H 05H 24H
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4800 baud 02H 03H 22H 03H 04H 23H
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9600 baud 01H 02H 21H 02H 03H 22H
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19200 baud 00H 01H 20H 01H 02H 21H
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38400 baud --- 00H --- 00H 01H 20H
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