mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 204

• Manufacturer Part Number: mc68hc908qb4
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Development Support
A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full
64-Kbyte memory map.
204
Data Returned
Data Returned
Data Returned
FROM HOST
ECHO
WRITE
Description
Description
Description
Operand
Operand
Operand
Opcode
Opcode
Opcode
WRITE
Table 17-6. IWRITE (Indexed Write) Command
Table 17-4. WRITE (Write Memory) Command
Table 17-5. IREAD (Indexed Read) Command
None
$49
Read next 2 bytes in memory from last address accessed
None
$1A
Write to last address accessed + 1
Single data byte
None
$19
Write byte to memory
2-byte address in high-byte:low-byte order; low byte followed by data byte
Returns contents of next two addresses
ECHO
FROM HOST
FROM HOST
ADDRESS
IREAD
ECHO
IWRITE
HIGH
MC68HC908QB8 Data Sheet, Rev. 2
ADDRESS
IREAD
IWRITE
HIGH
Command Sequence
Command Sequence
Command Sequence
ADDRESS
LOW
DATA
ADDRESS
LOW
DATA
DATA
DATA
DATA
RETURN
DATA
Freescale Semiconductor