upd17240 Renesas Electronics Corporation., upd17240 Datasheet - Page 65

• Manufacturer Part Number: upd17240
• Description: 4-bit Single-chip Microcontrollers For Small General-purpose Infrared Remote Control Transmitters
• Manufacturer: Renesas Electronics Corporation.

8.2.5
interrupt request flag is reset to 0.
be generated by the software. By writing 0 to the flag, the interrupt pending status can be canceled.
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
The interrupt request flag can be read or written by the program. Therefore, when it is set to 1, an interrupt can
Note
IRQ
3
0
3
0
3
0
It is also set to 1H after the STOP mode is released.
0
0
0
2
2
2
µ PD17240, 17241, 17242, 17243, 17244, 17245, 17246
0
0
0
1
1
1
IRQBTM
IRQTM
IRQ
0
0
0
Data Sheet U15002EJ1V1DS
IRQBTM
IRQTM
RF: 3DH
RF: 3EH
RF: 3FH
Address
Address
Address
IRQ
0
1
0
1
0
1
Interrupt request has not been made.
Basic interval timer interrupt request has been made.
Interrupt request has not been made.
Interrupt request has been made at rising edge or falling
edge of INT input.
Interrupt request has not been made.
8-bit timer interrupt request has been made.
After reset
After reset
After reset
1H
0H
0H
Basic interval timer interrupt request flag
Note
8-bit timer interrupt request flag
INT pin interrupt request flag
R/W
R/W
R/W
R/W
R/W
R/W
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