MC908QT1 FREESCALE [Freescale Semiconductor, Inc], MC908QT1 Datasheet - Page 146
MC908QT1
Manufacturer Part Number
MC908QT1
Description
Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC908QT1.pdf
(184 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.
146
Data Returned
Data Returned
Data Returned
FROM HOST
Description
Description
Description
ECHO
WRITE
Operand
Operand
Operand
Opcode
Opcode
Opcode
WRITE
Table 15-6. IWRITE (Indexed Write) Command
Table 15-4. WRITE (Write Memory) Command
Table 15-5. 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
MC68HC908QY/QT Family Data Sheet, Rev. 5
IREAD
ECHO
IWRITE
HIGH
ADDRESS
IREAD
IWRITE
Command Sequence
Command Sequence
Command Sequence
HIGH
ADDRESS
LOW
DATA
ADDRESS
LOW
DATA
DATA
DATA
DATA
RETURN
DATA
Freescale Semiconductor
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