参数资料
型号: MC68HC11A8BVFU2
厂商: ABILIS SYSTEMS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64
封装: QFP-64
文件页数: 88/158页
文件大小: 1003K
代理商: MC68HC11A8BVFU2
MC68HC11A8
ON-CHIP MEMORY
MOTOROLA
TECHNICAL DATA
3-9
3
3.5.2.5 Byte Erase
The following program segment shows the byte erase function.
3.5.3 System Configuration Register (CONFIG)
The MC68HC11A8 can be configured to specific system requirements through the use
of hardwired options such as the mode select pins, semi-permanent EEPROM control
bit specifications (CONFIG register), or by use of control registers. The configuration
control register (CONFIG) is implemented in EEPROM cells and controls the presence
*On entry X = any address in the row to be erased
ROWE
LDAB
#$0E
STAB
$103B
Set to Row Erase Mode
STAB
0,X
Write any Data to any Address in Row
LDAB
#$0F
STAB
$103B
Turn on High Voltage
JSR
DLY10
Delay 10 ms
CLR
$103B
Turn Off High Voltage and Set to Read
Mode
*On entry, X = address of byte to be erased
BYTEE
LDAB
#$16
STAB
$103B
Set to Byte Erase Mode
STAB
0,X
Write any Data to the Address to Erase
LDAB
#$17
STAB
$103B
Turn on High Voltage
JSR
DLY10
Delay 10 ms
CLR
$103B
Turn off High Voltage and Set to Read
Mode
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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