7220 Datasheet, PDF (154/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

M37220M3-XXXSP/FP
4.5 Functional description
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
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 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 ^{Nothing is assigned. This bit is a write disable bit.}
When this bit is read out, the value is “0.”
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
0 R—
0 RV
V: “0” can be set by software, but “1” cannot be set.
Fig. 4.5.5 Interrupt request register 1 (address 00FC16)
Interrupt Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt control register 1 (ICON1) [Address 00FE16]
B
Name
Functions
After reset ^{R W}
0 Timer 1 interrupt
enable bit (TM1E)
0 : Interrupt disabled
1 : Interrupt enabled
0 RW
1 Timer 2 interrupt
enable bit (TM2E)
2 ^{Timer 3 interrupt}
enable bit (TM3E)
3 ^{Timer 4 interrupt}
enable bit (TM4E)
0 : Interrupt disabled
1 : Interrupt enabled
0 : Interrupt disabled
1 : Interrupt enabled
0 : Interrupt disabled
1 : Interrupt enabled
0 RW
0 RW
0 RW
4 CRT interrupt enable
bit (CRTE)
0 : Interrupt disabled
1 : Interrupt enabled
0 RW
5 VSYNC interrupt
enable bit (VSCE)
0 : Interrupt disabled
1 : Interrupt enabled
0 RW
6 ^{Nothing is assigned. This bit is a write disable bit.} 0 R —
When this bit is read out, the value is “0.”
7 INT3 interrupt
enable bit (IT3E)
0 : Interrupt disabled
1 : Interrupt enabled
0 RW
Fig. 4.5.6 Interrupt control register 1 (address 00FE16)
4-16
7220 Group User’s Manual