MC68HC08AZ32A Datasheet, PDF (163/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Monitor ROM (MON)
Functional description
A sequence of IREAD or IWRITE commands can sequentially access a
block of memory over the full 64K byte memory map.
Table 11-7. READSP (Read Stack Pointer) Command
Description
Reads stack pointer
Operand
None
Data returned Returns stack pointer in high byte:low byte order
Opcode
$0C
Command sequence
SENT TO
MONITOR
READSP
READSP
SP HIGH
SP LOW
ECHO
RESULT
Table 11-8. RUN (Run User Program) Command
Description
Executes RTI instruction
Operand
None
Data returned None
Opcode
$28
Command sequence
SENT TO
MONITOR
RUN
RUN
ECHO
11.4.5 Baud Rate
The MC68HC08AZ32A features a monitor mode which is optimised to
operate with either a 4.9152MHz crystal clock source (or multiples of
4.9152MHz) or a 4MHz crystal (or multiples of 4MHz). This supports
designs which use the MSCAN08 module, which is generally clocked
from a 4MHz, 8MHz or 16MHz internal reference clock. The table below
MC68HC08AZ32A — Rev 1.0
MOTOROLA
Monitor ROM (MON)
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Technical Data
163