M37221M4H_15 Datasheet, PDF (110/114 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
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 0 : No interrupt request issued _{0 R ✽}
request bit (IT1R)
1 : Interrupt request issued
1 INT2 external interrupt 0 : No interrupt request issued 0 _R ✽
request bit (IT2R)
1 : Interrupt request issued
2 Serial I/O interrupt _{0 : No interrupt request issued 0 R} ✽
request bit (S1R) _{1 : Interrupt request issued}
3 Nothing is assigned. This bit is a write disable bit. ^{0 R —}
When this bit is read out, the value is “0.”
4 f(XIN)/4096 interrupt 0 : No interrupt request issued 0 R ✽
request bit (MSR) _{1 : Interrupt request issued}
5, 6 _{Nothing is assigned. These bits are write disable bits.} 0 R ^—
When these bits are read out, the values are “0.”
7 Fix this bit to “0.”
0 _RW
✽: “0” can be set by software, but “1” cannot be set.
Addresses 00FE16
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 0 R W
1 : Interrupt enabled
1 Timer 2 interrupt
enable bit (TM2E)
0 : Interrupt disabled 0 R W
1 : Interrupt enabled
2 Timer 3 interrupt
enable bit (TM3E)
0 : Interrupt disabled 0 R W
1 : Interrupt enabled
3 Timer 4 interrupt
enable bit (TM4E)
0 : Interrupt disabled 0 R W
1 : Interrupt enabled
4 OSD interrupt enable bit 0 : Interrupt disabled 0 R W
(CRTE)
1 : Interrupt enabled
5 VSYNC interrupt enable 0 : Interrupt disabled 0 R W
bit (VSCE)
1 : Interrupt enabled
6 Multi-master I²C-BUS interface 0 : Interrupt disabled 0 R W
interrupt enable bit (IICE)
1 : Interrupt enabled
7 INT3 external interrupt 0 : Interrupt disabled 0 R W
enable bit (IT3E)
1 : Interrupt enabled
Rev.1.00 Oct 01, 2002 page 108 of 110
REJ03B0134-0100Z