参数资料
型号: MC68HC08QY4CDWE
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16
封装: 1.27 MM PITCH, LEAD FREE, PLASTIC, MS-013AA, SOIC-16
文件页数: 51/178页
文件大小: 2311K
代理商: MC68HC08QY4CDWE
Development Support
MC68HC08QY/QT Family Data Sheet, Rev. 1
144
Freescale Semiconductor
A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full
64-Kbyte memory map.
Table 15-4. WRITE (Write Memory) Command
Description
Write byte to memory
Operand
2-byte address in high-byte:low-byte order; low byte followed by data byte
Data Returned
None
Opcode
$49
Command Sequence
Table 15-5. IREAD (Indexed Read) Command
Description
Read next 2 bytes in memory from last address accessed
Operand
None
Data Returned
Returns contents of next two addresses
Opcode
$1A
Command Sequence
Table 15-6. IWRITE (Indexed Write) Command
Description
Write to last address accessed + 1
Operand
Single data byte
Data Returned
None
Opcode
$19
Command Sequence
WRITE
ECHO
FROM HOST
ADDRESS
HIGH
ADDRESS
HIGH
ADDRESS
LOW
ADDRESS
LOW
DATA
IREAD
ECHO
DATA
RETURN
DATA
FROM HOST
IWRITE
ECHO
FROM HOST
DATA
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