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參數(shù)資料
| 型號： | KS57C2504 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機的小型通用紅外遙控器 |
| 文件頁數(shù)： | 25/94頁 |
| 文件大?。?/td> | 763K |
| 代理商： | KS57C2504 |
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S3C7254
PRODUCT SPECIFICATION
4–25
INTERRUPTS
The S3C7254 has four external, three internal and two quasi interrupts. Table 9 shows the conditions for each
interrupt generation. The request flags that allow the interrupts to be generated are cleared to logic zero by
hardware when the service routine is vectored. The quasi interrupt (INT2, IRQW) request flags must be cleared
by software.
IEK
IET0 IES
IE1
IE0
IE4
IEB
INTB
INT4
INTS
#
@
@
POWER-DOWN
MODE
RELEASE SIGNAL
# = NOISE FILTERING CIRCUIT
@ = EDGE DETECTION CIRCUIT
*
When fxx/64 is selected as a sampling clock for INT0, idle mode can be released by INT0.
IEW
IE2
IMOD2
INT2
IMODK
IMOD1
IMOD0
INTERRUPT CONTROL UNIT
VECTOR INTERRUPT
GENERATOR
IME
IPR
IS1 IS0
*
IRQB
IRQ2
IRQW
IRQK
IRQT0
IRQS
IRQ1
IRQ0
IRQ4
INT1
INT0
INTW
INTT0
@
@
Figure 23. Interrupt Control Circuit Diagram
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