參數(shù)資料
型號: W921E400A
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位微控制器)
中文描述: 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP28
封裝: DIP-28
文件頁數(shù): 30/53頁
文件大小: 394K
代理商: W921E400A
W921E400A/W921C400
- 30 -
6.11 Interrupt
There are seven interrupt sources (two external and five internal sources) in the
W921E400A/W921C400. All the pins of external sourcesINT0 (P4.3) and port P4.2are falling edge
active. The priority of those interrupts is INT0 > TM0 > TM2 > ( Comparator / TM3 ) > P4.2 >
SERIAL.
6.11.1 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: TM2 interrupt disable
1: TM2 interrupt enable
0: TM3 interrupt disable
1: TM3 interrupt enable
Reserved
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 P4.2 interrupt disable
1: Pin P4.2 interrupt enable
Reserved
Reserved
Reserved
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