MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 184

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Monitor ROM (MON)
12.4.6 Baud Rate
Advance Information
184
Description
Operand
Data Returned
Opcode
Command Sequence
Executes RTI instruction
None
None
$28
Table 12-8. RUN (Run User Program) Command
The 68HC908AZ32A features a monitor mode which is optimised to
operate with either a 4.9152 MHz crystal clock source (or multiples of
4.9152 MHz) or a 4 MHz crystal (or multiples of 4 MHz). This supports
designs which use the MSCAN module, which is generally clocked from
a 4 MHz, 8 MHz or 16 MHZ internal reference clock. The table below
outlines the available baud rates for a range of crystals and how they can
match to a PC baud rate.
Clock freq
4.194MHz
Freescale Semiconductor, Inc.
32kHz
1MHz
2MHz
4MHz
For More Information On This Product,
Table 12-9 68HC908AZ32A Monitor Baud Rate Selection
SENT TO
MONITOR
ECHO
Go to: www.freescale.com
PTC3=0
1811.59
3623.19
7246.37
7597.83
57.97
Monitor ROM (MON)
Baud rate
RUN
PTC3=1
3623.19
3798.91
1811.59
905.80
28.98
RUN
Closest PC baud PC
PTC3=0
1800
3600
7200
7680
57.6
PTC3=1
1800
3600
3840
28.8
900
68HC908AZ32A — Rev 0.0
PTC3=0
0.64
0.64
0.64
0.64
1.08
Error %
MOTOROLA
PTC3=1
0.63
0.64
0.64
0.64
1.08