Motorola MC68HC908AB32 User Manual

Monitor ROM (MON)
Technical Data MC68HC908AB32 — Rev. 1.0
166 Monitor ROM (MON) MOTOROLA
10.4.6 Baud Rate
With a 4.9152-MHz crystal and the PTC3 pin at logic 1 during reset, data
is transferred between the monitor and host at 4800 baud. If the PTC3
pin is at logic 0 during reset, the monitor baud rate is 9600. When the
CGM output, CGMOUT, is driven by the PLL, the baud rate is
determined by the MUL[7:4] bits in the PLL programming register (PPG).
(See Section 9. Clock Generator Module (CGM).)
Table 10-8. RUN (Run User Program) Command
Description Executes RTI instruction
Operand None
Data
Returned
None
Opcode $28
Command Sequence
RUN
RUN
ECHO
SENT TO
MONITOR
Table 10-9. Monitor Baud Rate Selection
Monitor
Baud Rate
VCO Frequency Multiplier (N)
123456
4.9152 MHz 4800 9600 14,400 19,200 24,000 28,800
4.194 MHz 4096 8192 12,288 16,384 20,480 24,576

Motorola MC68HC908AB32 Specifications

General

Brand	Motorola
Model	MC68HC908AB32
Category	Controller
Language	English