XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 218

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

Monitor ROM (MON)
14.4.6 MC68HC908AS60A Baud Rate
Technical Data
218
Description
Operand
Data Returned
Opcode
Command Sequence
Executes RTI instruction
None
None
$28
Table 14-8. 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
4.9152 MHz
Baud Rate
4.194 MHz
Table 14-9. MC68HC908AS60A Monitor Baud Rate Selection
Monitor
Clock Generator Module (CGM)
SENT TO
MONITOR
ECHO
Monitor ROM (MON)
4800
4096
1
RUN
9600
8192
2
VCO Frequency Multiplier (N)
RUN
14,400
12,288
3
on page 169).
19,200
16,384
MC68HC908AZ60A — Rev 2.0
4
24,000
20,480
5
MOTOROLA
28,800
24,576
6