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Table 14-8. RUN (Run User Program) Command
Description
Executes RTI instruction
Operand
None
Data Returned
None
Opcode
$28
Command Sequence
SENT TO
MONITOR
RUN
RUN
ECHO
Functional Description
14.3.6 MC68HC908AS60A 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 Chapter 10 Clock Generator Module (CGM)).
Table 14-9. MC68HC908AS60A Monitor Baud Rate Selection
Monitor
Baud Rate
4.9152 MHz
4.194 MHz
1
4800
4096
VCO Frequency Multiplier (N)
2
3
4
5
9600
14,400 19,200 24,000
8192
12,288 16,384 20,480
6
28,800
24,576
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Freescale Semiconductor
159