![](http://datasheet.mmic.net.cn/30000/M37225M6-XXXSP_datasheet_2359636/M37225M6-XXXSP_120.png)
120
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37225M6/M8/MA/MC–XXXSP
M37225ECSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
Address 00FC16
Address 00FD16
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IREQ1) [Address 00FC
BName
Functions
After reset RW
Interrupt Request Register 1
0
0 : No interrupt request issued
1 : Interrupt request issued
Timer 1 interrupt
request bit
(TM1R)
1
Timer 2 interrupt
request bit
(TM2R)
2
Timer 3 interrupt
request bit
(TM3R)
3Timer 4 interrupt
request bit
(TM4R)
4
OSD interrupt request
bit
(OSDR)
5
VSYNC interrupt
request bit
(VSCR)
6
Multi-master I2C-BUS interface
interrupt request bit (IICR)
7
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
0
0
0
0
0
0
: “0” can be set by software, but “1” cannot be set.
16
]
R
INT3 external interrupt
request bit (IT3R)
0 : No interrupt request issued
1 : Interrupt request issued
b7b6 b5 b4b3 b2 b1 b0
Interrupt request register 2 (IREQ2) [Address 00FD
BName
Functions
After reset RW
Interrupt Request Register 2
0 INT1 external interrupt
request bit (IT1R)
0 : No interrupt request issued
1 : Interrupt request issued
1
2
Serial I/O interrupt
request bit (S1R)
3
4
f(XIN)/4096 interrupt
request bit (MSR)
5
7
Fix this bit to “0.”
0
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0
: “0” can be set by software, but “1” cannot be set.
0
0
0
0
0 : No interrupt request issued
1 : Interrupt request issued
16
]
R
R
R
R —
R W
SPRITE OSD interrupt
request bit (SPR)
0 : No interrupt request issued
1 : Interrupt request issued
6
A-D conversion interrupt
request bit (ADR)
0 : No interrupt request issued
1 : Interrupt request issued
0
R
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
INT2 external interrupt
request bit (IT2R)