M37273M8 Datasheet, PDF (20/138 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37273M8–XXXSP, M37273MF–XXXSP
M37273E8SP, M37273EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Interrupt Request Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC16]
B
Name
Functions
0 Timer 1 interrupt
0 : No interrupt request issued
request bit (TM1R) 1 : Interrupt request issued
1 Timer 2 interrupt
0 : No interrupt request issued
request bit (TM2R) 1 : Interrupt request issued
2 Timer 3 interrupt
0 : No interrupt request issued
request bit (TM3R) 1 : Interrupt request issued
3 Timer 4 interrupt
0 : No interrupt request issued
request bit (TM4R) 1 : Interrupt request issued
4 OSD interrupt request 0 : No interrupt request issued
bit (OSDR)
1 : Interrupt request issued
5 VSYNC interrupt
0 : No interrupt request issued
request bit (VSCR) 1 : Interrupt request issued
6 ^{INT3 external interrupt} 0 : No interrupt request issued
request bit (VSCR) _{1 : Interrupt request issued}
7 Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
After reset R W
0 RV
0 RV
0 RV
0 RV
0 RV
0 RV
0 RV
0 R—
V: “0” can be set by software, but “1” cannot be set.
Fig. 8.3.2 Interrupt Request Register 1
Interrupt Request Register 2
b7 b6 b5 b4 b3 b2 b1 b0
0
Interrupt request register 2 (IREQ2) [Address 00FD16]
B
Name
0 INT1 external interrupt
request bit (INIR)
1 Data slicer interrupt
request bit (DSR)
2 Serial I/O interrupt
request bit (S1R)
3 f(XIN)/4096 interrupt
request bit (CKR)
4 INT2 external interrupt
request bit (IN2R)
5 Multi-master I²C-BUS
interrupt request bit (IICR)
6 Timer 5 • 6 interrupt
request bit (TM56R)
7 Fix this bit to “0.”
Functions
After reset R W
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 R_V
0 R_V
0 R_V
0 RV
0 R_V
0 RV
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
0 RW
V: “0” can be set by software, but “1” cannot be set.
Fig. 8.3.3 Interrupt Request Register 2
20
Rev. 1.0