XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 159

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

10.4.6 Baud Rate
MC68HC(7)08KH12
MOTOROLA
—
Rev. 1.0
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
Monitor ROM (MON)
4.9152MHz
4.9152MHz
Frequency
Crystal
(MHz)
PTC3
pin
0
1
Baud Rate
9600 bps
4800 bps
Functional Description
Monitor ROM (MON)
Advance Information
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