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M37281EKSP Datasheet, PDF (153/172 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER | |||
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M37281MAHâXXXSP,M37281MFHâXXXSP,M37281MKHâXXXSP, M37281EKSP
Address 00FC16
Interrupt Request Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC16]
B
Name
Functions
After reset R W
0 Timer 1 interrupt
request bit (TM1R)
0 : No interrupt request issued 0 R â½
1 : Interrupt request issued
1 Timer 2 interrupt
request bit (TM2R)
0 : No interrupt request issued 0 R â½
1 : Interrupt request issued
2 Timer 3 interrupt
request bit (TM3R)
0 : No interrupt request issued 0 R â½
1 : Interrupt request issued
3 Timer 4 interrupt
request bit (TM4R)
0 : No interrupt request issued 0 R â½
1 : Interrupt request issued
4 OSD interrupt request
0 : No interrupt request issued 0 R â½
bit (OSDR)
1 : Interrupt request issued
5 VSYNC interrupt
0 : No interrupt request issued 0 R â½
request bit (VSCR)
1 : Interrupt request issued
6 A-D conversion ⢠INT3
0 : No interrupt request issued 0 R â½
external interrupt request 1 : Interrupt request issued
bit (ADR)
7 Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is â0.â
0 Râ
â½ : â0â can be set by software, but â1â cannot be set.
Address 00FD16
Interrupt Request Register 2
b7 b6 b5 b4 b3 b2 b1 b0
0
Interrupt request register 2 (IREQ2) [Address 00FD16]
B
Name
Functions
After reset R W
0 INT1 external interrupt
request bit (IN1R)
0 : No interrupt request issued 0
1 : Interrupt request issued
Râ½
1 Data slicer interrupt
request bit (DSR)
2 Serial I/O interrupt
request bit (SIOR)
0 : No interrupt request issued 0
1 : Interrupt request issued
0 : No interrupt request issued 0
1 : Interrupt request issued
Râ½
Râ½
3 f(XIN)/4096 ⢠SPRITE OSD
0 : No interrupt request issued 0
interrupt request bit (CKR)
1 : Interrupt request issued
4 INT2 external interrupt request 0 : No interrupt request issued 0
bit (IN2R)
1 : Interrupt request issued
5 Multi-master I2C-BUS interrupt 0 : No interrupt request issued 0
request bit (IICR)
1 : Interrupt request issued
6 Timer 5 ⢠6 interrupt
request bit (TM56R)
0 : No interrupt request issued 0
1 : Interrupt request issued
Râ½
Râ½
Râ½
Râ½
7 Fix this bit to â0.â
0
RW
â½: â0â can be set by software, but â1â cannot be set.
Rev.1.01 2003.07.16 page 153 of 170
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