參數(shù)資料
型號: MC68HC11A0CFN2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Single-Chip Microcontroller
中文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PQCC52
封裝: PLASTIC, LCC-52
文件頁數(shù): 37/158頁
文件大?。?/td> 776K
代理商: MC68HC11A0CFN2
MC68HC11A8
TECHNICAL DATA
ON-CHIP MEMORY
MOTOROLA
3-11
3
On mask set B96D and newer, the CONFIG register may only be programmed or
erased while the MCU is operating in the test mode or the bootstrap mode. This inter-
lock was added to help prevent accidental changes to the CONFIG register.
The following program segment demonstrates how to program the CONFIG register.
This program assumes that the CONFIG register was previously erased.
The following program segment demonstrates the erase procedure for the CONFIG
register.
*On entry, A = data to be programmed onto CONFIG
PROGC
LDAB
#$02
STAB
$103B
Set EELAT Bit (EEPGM = 0)
STAA
$103F
Store Data to CONFIG Address
LDAB
#$03
STAB
$103B
Turn on Programming Voltage
JSR
DLY10
Delay 10 ms
CLR
$103B
Turn Off High Voltage and Set to READ
Mode
BULKC
LDAB
STAB
STAB
LDAB
STAB
JSR
CLR
#$06
$103B
$103F
#$07
$103B
DLY10
$103B
Set Bulk Erase Mode
Write any Data to CONFIG
Turn on Programming Voltage
Delay 10 ms
Turn Off High Voltage and Set to READ
Mode
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