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參數資料
型號: W921E840
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-Bit Microcontroller(4位的微控制器)
中文描述: 4-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數: 41/64頁
文件大小: 603K
代理商: W921E840
W921E840
Publication Publication Release Date: August 1997
- 41 - Revision A1
STPRF register: (address = 035H, default data = 8H)
b3
b2
b1
b0
0: Stop released by INT0 (P4.3) is disable
1: Stop released by INT0 (P4.3) is enable
0: Stop released by any pin of PB is disable
1: Stop released by any pin of PB is enable
0: Stop released by any pin of P4.0 to P4.2 is disable
1: Stop released by any pin of P4.0 to P4.2 is enable
0: Stop released by any pin of PA is disable
1: Stop released by any pin of PA is enable
When stop mode is active, if the stop condition release flag (STPRF) is set before the STOP
instruction is executed, the low level signal on the P4, PA or PB ports will release the stop mode and
a delay of 256 machine cycles occurs right after the stop mode is released, then the next instruction
is executed or the program counter (PC) jumps to interrupt subroutine if the interrupt is enabled and
interrupt request exists.
The control flow chart is shown below:
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相關代理商/技術參數
參數描述
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