7220 Datasheet, PDF (57/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

FUNCTIONAL DESCRIPTION
2.5 Interrupts
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)
1 Timer 2 interrupt
request bit (TM2R)
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
0 RV
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 CRT interrupt
0 : No interrupt request issued
request bit (CRTR) 1 : Interrupt request issued
5 VSYNC interrupt
0 : No interrupt request issued
request bit (VSCR) 1 : Interrupt request issued
6 ^{Multi-master I2C-BUS interface} 0 : No interrupt request issued
interrupt request bit (IICR) _{1 : Interrupt request issued}
7 INT3 interrupt
request bit (IT3R)
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
0 RV
0 RV
0 RV
0 RV
0 RV
V: “0” can be set by software, but “1” cannot be set.
Fig. 2.5.3 Interrupt request register 1 (address 00FC16)
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 interrupt
request bit (ITIR)
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
1 INT2 interrupt
request bit (IT2R)
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
2 Serial I/O interrupt
request bit (S1R)
0 : No interrupt request issued
1 : Interrupt request issued
0 RV
3 ^{Nothing is assigned. This bit is a write disable bit.}
When this bit is read out, the value is “0.”
0 R—
4 ^{f(XIN)/4096 interrupt} 0 : No interrupt request issued
request bit (MSR) 1 : Interrupt request issued
0 RV
5, 6 Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0 R—
7 Fix this bit to “0.”
0 RW
V: “0” can be set by software, but “1” cannot be set.
Fig. 2.5.4 Interrupt request register 2 (address 00FD16)
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7220 Group User’s Manual