Motorola MC68HC908AB32 - IWRITE (Indexed Write) Command; READSP (Read Stack Pointer) Command

Monitor ROM (MON)
Functional Description
MC68HC908AB32 — Rev. 1.0 Technical Data
MOTOROLA Monitor ROM (MON) 165
Table 10-6. IWRITE (Indexed Write) Command
Description Write to last address accessed + 1
Operand Specifies single data byte
Data
Returned
None
Opcode $19
Command Sequence
Table 10-7. 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
IWRITE
IWRITE
ECHO
SENT TO
MONITOR
DATA DATA
READSP
READSP
ECHO
SENT TO
MONITOR
SP
RETURN
SP
HIGH LOW