MC68HC908RF2 Datasheet, PDF (158/254 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Monitor Read-Only Memory (MON)
Table 10-4. WRITE (Write Memory) Command
Description
Write byte to memory
Operand
Specifies 2-byte address in high byte:low byte order; low byte followed by data byte
Data Returned None
Opcode
$49
Command Sequence
SENT TO
MONITOR
WRITE
WRITE
ADDR. HIGH ADDR. HIGH ADDR. LOW ADDR. LOW
DATA
DATA
1
2
1
2
1
2
1
ECHO
Notes: 1 = Echo delay (2 bit times)
2 = Wait 1 bit time before sending next byte.
Table 10-5. IREAD (Indexed Read) Command
Description
Read next 2 bytes in memory from last address accessed
Operand
Specifies 2-byte address in high byte:low byte order
Data Returned Returns contents of next two addresses
Opcode
$1A
Command Sequence
SENT TO
MONITOR
ECHO
IREAD
IREAD
1
2
Notes: 1 = Echo delay (2 bit times)
2 = Data return delay (2 bit times)
DATA
DATA
2
RESULT
Advance Information
158
Monitor Read-Only Memory (MON)
MC68HC908RF2 — Rev. 1
MOTOROLA