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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: 36/64頁
文件大?。?/td> 603K
代理商: W921E840
W921E840
- 36 -
6.12 Interrupt
There are eight interrupt sources (two external and six internal sources) in the W921E840. All the pins
of external sources
INT0 (P4.3) and port P4 (P4.0 to P4.2)
are falling edge active.
6.12.1 Interrupt Control Register
Which interrupt is enabled is controlled by the interrupt control register1 to 3 (INTCT1 to INTCT3).
The formats are shown below:
INTCT1 register: (address = 039H, default data = 0H)
b3
b2
b1
b0
0: TM0 interrupt disable
1: TM0 interrupt enable
0: TM1 interrupt disable
1: TM1 interrupt enable
0: TM2 interrupt disable
1: TM2 interrupt enable
0: TM3 interrupt disable
1: TM3 interrupt enable
INTCT2 register: (address = 03AH, default data = 0H)
b3
b2
b1
b0
0: Serial port interrupt disable
1: Serial port interrupt enable
0: INT0 pin interrupt disable
1: INT0 pin interrupt enable
0: Comparator interrupt disable
1: Comparator interrupt enable
Reserved
INTCT3 register: (address = 03BH, default data = 0H)
b3
b2
b1
b0
0: Pin P4.0 interrupt disable
1: Pin P4.0 interrupt enable
0: Pin P4.1 interrupt disable
1: Pin P4.1 interrupt enable
0: Pin P4.2 interrupt disable
1: Pin P4.2 interrupt enable
Reserved
相關PDF資料
PDF描述
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