MC68HC908GP20 Datasheet, PDF (217/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

A sequence of IREAD or IWRITE commands can access a block of
memory sequentially over the full 64-Kbyte memory map.
Table 15-8. READSP (Read Stack Pointer) Command
Description
Operand
Data
Returned
Opcode
Reads stack pointer
None
Returns incremented stack pointer value (SP + 1) in high-byte:low-
byte order
$0C
Command Sequence
FROM
HOST
READSP READSP
ECHO
SP
HIGH
SP
LOW
RETURN
Table 15-9. 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
MC68HC908GP20 — Rev 2.1
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