MC908QL4 FREESCALE [Freescale Semiconductor, Inc], MC908QL4 Datasheet - Page 200
MC908QL4
Manufacturer Part Number
MC908QL4
Description
M68HC08 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC908QL4.pdf
(226 pages)
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A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full
64-Kbyte memory map.
200
Data Returned
Data Returned
Data Returned
FROM HOST
Description
Description
Description
ECHO
WRITE
Operand
Operand
Operand
Opcode
Opcode
Opcode
WRITE
Table 16-6. IWRITE (Indexed Write) Command
Table 16-4. WRITE (Write Memory) 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
Table 16-5. IREAD (Indexed Read) Command
ECHO
FROM HOST
FROM HOST
ECHO
ADDRESS
IREAD
IWRITE
HIGH
MC68HC908QL4 Data Sheet, Rev. 7
ADDRESS
IREAD
IWRITE
HIGH
Command Sequence
Command Sequence
Command Sequence
ADDRESS
LOW
DATA
ADDRESS
LOW
DATA
DATA
DATA
DATA
RETURN
DATA
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