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參數(shù)資料
| 型號： | UPD1724x |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 65/102頁 |
| 文件大?。?/td> | 461K |
| 代理商： | UPD1724X |
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65
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
8.2.5
IRQ
This is an interrupt request flag that indicates the interrupt request status.
When an interrupt request is generated, this flag is set to 1. When the interrupt has been acknowledged, the
interrupt request flag is reset to 0.
The interrupt request flag can be read or written by the program. Therefore, when it is set to 1, an interrupt can
be generated by the software. By writing 0 to the flag, the interrupt pending status can be canceled.
3
2
1
0
0
0
0
IRQBTM
Address
RF: 3DH
IRQBTM
After reset
0H
R/W
R/W
0
1
Basic interval timer interrupt request flag
Basic interval timer interrupt request has been made.
3
2
1
0
0
0
0
IRQ
Address
RF: 3EH
IRQ
After reset
0H
R/W
R/W
0
1
INT pin interrupt request flag
Interrupt request has not been made.
Interrupt request has been made at rising edge or falling
edge of INT input.
3
2
1
0
0
0
0
IRQTM
Address
RF: 3FH
IRQTM
After reset
1H
Note
R/W
R/W
0
1
8-bit timer interrupt request flag
8-bit timer interrupt request has been made.
Interrupt request has not been made.
Interrupt request has not been made.
Note
It is also set to 1H after the STOP mode is released.
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