MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 170

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Monitor ROM (MON)
12.4.6 Baud Rate
Advance Information
170
Monitor Baud Rate (4.9152 MHz)
Monitor Baud Rate (4.194 MHz)
Description
Operand
Data Returned
Opcode
Command Sequence
Executes RTI instruction
None
None
$28
Table 12-8. RUN (Run User Program) Command
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
Table 12-9. Monitor Baud Rate Selection
Section 8. Clock Generator Module
SENT TO
MONITOR
ECHO
4800
4096
1
Monitor ROM (MON)
RUN
9600
8192
2
VCO Frequency Multiplier (N)
14,400
12,288
RUN
3
19,200
16,384
4
(CGM).)
MC68HC708AS48
24,000
20,480
5
28,800
24,576
MOTOROLA
—
6
Rev. 4.0