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參數資料
型號: W921C880
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, MROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 33/57頁
文件大小: 372K
代理商: W921C880
W921E880A/W921C880
Publication Release Date: September 1998
- 33 -
Revision A2
6.12 Interrupt
There are 10 interrupt sources. There are four external sources: INT0 (P4.3) and P4 Port (P4.0
P4.2), triggered by the falling edge signals of external sources, and six internal sources: Timer0,
Timer1, Timer2, Timer3, Comparator and Serial Port. The priority of those interrupts is INT0 > TM0 >
TM1 > TM2 > ( Comparator / TM3 ) > P4.0 to P4.2 > SERIAL.
6.12.1 Interrupt Control Register
The INTERRUPT CONTROL REG.1
3 (INTCT1
INTCT3) controls which interrupt is enabled. The
formats are shown below:
INTCT1 REG: (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 REG: (ADDRESS = 03AH)
(Default data = 0H)
b3
b2
b1
b0
0: SERIAL interrupt disable
1: SERIAL interrupt enable
0: INT0 pin interrupt disable
1: INT0 pin interrupt enable
0: COMPARATOR interrupt disable
1: COMPARATOR interrupt enable
Reserved
INTCT3 REG: (ADDRESS = 03BH)
(Default data = 0H)
b3
b2
b1
b0
0: P4.0 PORT interrupt disable
1: P4.0 PORT interrupt enable
0: P4.1 PORT interrupt disable
1: P4.1 PORT interrupt enable
0: P4.2 PORT interrupt disable
1: P4.2 PORT interrupt enable
Reserved
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