Contec SPT-100A-22TP01, Справочное руководство

Страница: 84 / 96

—
Appendix
—
SPT-100A22TP01, SPT-100A22TP02 Reference Manual (Hardware)
- 84 -
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 SERIALA, B. 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).
Baud Rate Settings
Baud rate to be set
SERIAL A, B
Clock input (1.8432MHz)
Value to be set in the divisor register
(Decimal)
Setting error (%)
50 2304 ---
75 1536 ---
110 1047 0.026
134.5 857 0.058
150 768 ---
300 384 ---
600 192 ---
1200 96 ---
1800 64 ---
2000 58 0.69
2400 48 ---
3600 32 ---
4800 24 ---
7200 16 ---
9600 12 ---
14400 8 ---
19200 6 ---
28800 4 ---
38400 3 ---
57600 2 ---
76800 --- ---
115200 1 ---
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.