AMD Am186 ES, User Manual, Page: 160 / 192

Asynchronous Serial Port 10-14
Note: A 1% error applies to all values in the above tables.
Figure 10-7 Serial Port 0/1 Baud Rate Divisor Registers
The value of SPBAUD at reset is 0000h.
Bits 15–0: Baud Rate Divisor (BAUDDIV)—This field specifies the divisor for the internal
processor clock.
128000 9 12 16 19
153600 8 10 13 16
Special 15 MHz 21 MHz 24 MHz 30 MHz
187500 5 7 8 10
Baud
Rate
Divisor Based on CPU Clock Rate
20 MHz 25 MHz 33 MHz 40 MHz
15
7 0
BAUDDIV