s908qc16vdse Freescale Semiconductor, Inc, s908qc16vdse Datasheet - Page 232

• Manufacturer Part Number: s908qc16vdse
• 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.
232
Data Returned
Data Returned
Data Returned
FROM HOST
ECHO
Description
Description
Description
WRITE
Operand
Operand
Operand
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 4
Opcode
Opcode
Opcode
WRITE
Table 18-6. IWRITE (Indexed Write) Command
Table 18-4. WRITE (Write Memory) Command
Table 18-5. IREAD (Indexed Read) Command
Write byte to memory
2-byte address in high-byte:low-byte order; low byte followed by data byte
None
$49
Read next 2 bytes in memory from last address accessed
None
Returns contents of next two addresses
$1A
Write to last address accessed + 1
Single data byte
None
$19
ECHO
FROM HOST
FROM HOST
ADDRESS
IREAD
ECHO
IWRITE
HIGH
ADDRESS
IREAD
IWRITE
HIGH
Command Sequence
Command Sequence
Command Sequence
ADDRESS
LOW
DATA
ADDRESS
LOW
DATA
DATA
DATA
DATA
RETURN
DATA
Freescale Semiconductor