MC68HC908GR8 Datasheet, PDF (139/286 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Table 15-7. IWRITE (Indexed Write) Command
Description
Operand
Data Returned
Opcode
Write to last address accessed + 1
Single data byte
None
$19
Command Sequence
FROM
HOST
Functional Description
IWRITE IWRITE ^DATA
DATA
ECHO
A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full 64K
byte 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
SP
SP
HIGH
LOW
ECHO
RETURN
Table 15-9. RUN (Run User Program) Command
Description
Operand
Data Returned
Opcode
Executes PULH and RTI instructions
None
None
$28
Command Sequence
FROM
HOST
RUN
RUN
ECHO
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
Freescale Semiconductor
139