Development Support
Monitor ROM (MON)
Table 18-6. IWRITE (Indexed Write) Command
Description Write to last address accessed + 1
Operand Single data byte
Data Returned None
Opcode $19
Command Sequence
FROM HOST
DATA
DATA
IWRITE
ECHO
IWRITE
A sequence of IREAD or IWRITE commands can access a block of memory
sequentially over the full 64-Kbyte memory map.
Table 18-7. READSP (Read Stack Pointer) Command
Description Reads stack pointer
Operand None
Data Returned Returns incremented stack pointer value (SP + 1) in high-byte:low-byte order
Opcode $0C
Command Sequence
FROM HOST
SP
HIGH
SP
LOW
READSP
READSP
ECHO
RETURN
Table 18-8. RUN (Run User Program) Command
Description Executes PULH and RTI instructions
Operand None
Data Returned None
Opcode $28
Command Sequence
FROM HOST
RUN
RUN
ECHO
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
MOTOROLA
Data Sheet
285
Development Support
FREESCALE [ Freescale ]
