MC68HC08XL36 Datasheet, PDF (157/362 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Monitor ROM (MON)
Functional Description
A brief description of each monitor mode command follows:
Table 3. READ (Read Memory) Command
Description
Operand
Data
Returned
Opcode
Read byte from memory
2-byte address in high byte:low byte order
Returns contents of specified address
$4A
Command Sequence
SENT TO
MONITOR
READ
READ
Address Address Address Address
High
High
Low
Low
ECHO
Data
RETURN
Table 4. WRITE (Write Memory) Command
Description Write byte to memory
Operand
2-byte address in high byte:low byte order; low byte followed by
data byte
Data
Returned
None
Opcode $49
Command Sequence
FROM
HOST
WRITE
WRITE
Address Address Address Address
High
High
Low
Low
Data
Data
ECHO
9-mon08sp_1p
MOTOROLA
Monitor ROM (MON)
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MC68HC08XL36
157