MC68HC08AZ0 Datasheet, PDF (157/444 Pages) Motorola, Inc – Advance Information

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 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 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
Baud rate
With a 4.9152MHz crystal and the PTC3 pin at ‘1’ during reset, data is
transferred between the monitor and host at 4800 baud. If the PTC3 pin
is at ‘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
9-mon
MOTOROLA
Monitor ROM (MON)
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MC68HC08AZ0
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