mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 144

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Monitor ROM (MON)
10.4.5 Commands
Data Sheet
144
The monitor ROM uses the following commands:
Description
•
•
•
•
•
•
ECHO
Returned
Operand
SENT TO
MONITOR
Opcode
READ (read memory)
WRITE (write memory)
IREAD (indexed read)
IWRITE (indexed write)
READSP (read stack pointer)
RUN (run user program)
READ
0
Data
1
Table 10-3. READ (Read Memory) Command
2
READ
Read byte from memory
Specifies 2-byte address in high byte:low byte order
Returns contents of specified address
$4A
Monitor ROM (MON)
3
MISSING STOP BIT
Figure 10-5. Break Transaction
4
ADDRESS
HIGH
5
6
Command Sequence
ADDRESS
HIGH
7
ADDRESS
LOW
TWO-STOP-BIT DELAY BEFORE ZERO ECHO
ADDRESS
LOW
0
MC68HC908LD64
1
Freescale Semiconductor
2
3
4
DATA
5
—
6
RETURN
Rev. 3.0
7