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參數資料
| 型號： | W78C374B |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | MONITOR MICROCONTROLLER |
| 中文描述： | 顯示器單片機 |
| 文件頁數： | 30/38頁 |
| 文件大小： | 396K |
| 代理商： | W78C374B |
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Preliminary W78E378/W78C378/W78C374
- 30 -
Interrupts
The five interrupt sources are listed as below.
SOURCE VECTOR ADDRESS
DESCRIPTON
PRIORITY WITHIN A LEVEL
1
IE0
0003H
Interrupt 0 edge detected
Highest
2
TF0
000BH
Timer 0 overflow
Miscellaneous interrupts
*1
3
IE1
0013H
4
TF1
001BH
Timer 1 overflow
5
SI1+SI2
002BH
SIO1 or SIO2 interrupt
Lowest
Note: *1: SCLINT + ADCINT + DDC1INT + SOAINT + VEVENT + PARAINT.
The miscellaneous interrupts at vector address 0013H is driven by the following six sources, which
are:
(1) SCLINT: when high-to-low transition on SCL-pin,
(2) ADCINT: when A-to-D conversion completion,
(3) DDC1INT: when DDC1 data byte transmitted (after 9 clock pulses from V
IN
) in the DDC port,
(4) SOAINT: when SOA activated,
(5) VEVENT: on every Vsync pulse or vertical frequency counter overflow,
(6) PARAINT: when parabola timer timeout.
If IE1 interrupt occurs, it is necessary for the programmer to read the INTVECT register to tell where
the interrupt request comes. These sources can be masked individually by clearing their
corresponding bits in the INTMSK register. To clear any of these interrupt flags, just write a '1' to the
corresponding bit in the INTCLR.
The interrupt enable bits and priority control bits for these five main sources are listed as below.
INTERRUPT FLAG
IE0
TF0
IE1
TF1
SI+SI2
ENABLE BIT
IE.0 & IE.7
IE.1 & IE.7
IE.2 & IE.7
IE.3 & IE.7
IE.5 & IE.7
PRIORITY CONTROL BIT
IP.0
IP.1
IP.2
IP.3
IP.5
1
2
3
4
5
相關PDF資料 |
PDF描述 |
|---|---|
| W78C374P | MONITOR MICROCONTROLLER |
| W78C378 | MONITOR MICROCONTROLLER |
| W78C378P | MONITOR MICROCONTROLLER |
| W78E378 | MONITOR MICROCONTROLLER |
| W78E378P | MONITOR MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78C374P | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITOR MICROCONTROLLER |
| W78C378 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITOR MICROCONTROLLER |
| W78C378P | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITOR MICROCONTROLLER |
| W78C438 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT EMULATION MICROCONTROLLER |
| W78C438BF-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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