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6. Appendix
Baud Rate Settings
A baud rate is set by software by dividing the clock input (1.8432MHz). The baud rate in terms of
hardware can be set to a maximum of 115,200 bps for SERIAL1, 2, 3. The baud rates available in
practice depend on the operating environment (cable, software, etc.). The table below lists typical baud
rates and their respective values to be written to the divisor latch register (LSB, MSB).
Table 6.7. Baud Rate Settings
Baud rate to be set
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
14400
19200
28800
38400
57600
76800
115200
153600
230400
Example :
To set 9,600 bps, write "00" to the (MSB) divisor latch register and "12 (decimal)" to the (LSB) divisor latch
register.
124
SERIAL1, 2, 3
Clock input (1.8432MHz)
Value to be set
Setting error (%)
in the divisor register
(Decimal)
2304
1536
1047
857
768
384
192
96
64
58
48
32
24
16
12
8
6
4
3
2
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1
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0.026
0.058
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0.69
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BX710 series User's Manual
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