Freescale Semiconductor MC68HC08KH12 - Manual (Page 159)

MC68HC(7)08KH12 — Rev. 1.1 Advance Information
Freescale Semiconductor 159
10.4.6 Baud Rate
The communication baud rate is controlled by crystal frequency and the
state of the PTC3 pin upon entry into monitor mode. When PTC3 is high,
the divide by ratio is 1024. If the PTC3 pin is at logic zero upon entry into
monitor mode, the divide by ratio is 512.
Table 10-9. Monitor Baud Rate Selection
Crystal
Frequency
(MHz)
PTC3
pin
Baud Rate
4.9152MHz 0 9600 bps
4.9152MHz 1 4800 bps