mc68hc908gr8vp Freescale Semiconductor, Inc, mc68hc908gr8vp Datasheet - Page 139

• Manufacturer Part Number: mc68hc908gr8vp
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full 64K
byte memory map.
Freescale Semiconductor
Data Returned
Data Returned
Data Returned
Description
Description
Description
Operand
Operand
Operand
Opcode
Opcode
Opcode
Table 15-8. READSP (Read Stack Pointer) Command
Table 15-9. RUN (Run User Program) Command
Table 15-7. IWRITE (Indexed Write) Command
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
ECHO
Write to last address accessed + 1
Single data byte
None
$19
Reads stack pointer
None
Returns incremented stack pointer value (SP + 1) in high-byte:low-byte
order
$0C
Executes PULH and RTI instructions
None
None
$28
READSP
FROM
HOST
ECHO
IWRITE
FROM
HOST
READSP
ECHO
IWRITE
Command Sequence
Command Sequence
Command Sequence
FROM
HOST
RUN
DATA
RUN
HIGH
SP
DATA
LOW
SP
RETURN
Functional Description
139