m37280eksp Mitsumi Electronics, Corp., m37280eksp Datasheet - Page 158

• Manufacturer Part Number: m37280eksp
• Description: Single-chip 8-bit Cmos Microcomputer With Closed Caption Decoder And On-screen Display Controller
• Manufacturer: Mitsumi Electronics, Corp.

158
x x x x x x
Interrupt Request Register 1
b7 b6 b5 b4 b3 b2 b1 b0
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
0
B
1
2
3
4
5
6
7
Interrupt request register 1 (IREQ1) [Address 00FC
: “0” can be set by software, but “1” cannot be set.
Timer 1 interrupt
request bit
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is “0.”
Timer 2 interrupt
request bit
Timer 3 interrupt
request bit
Timer 4 interrupt
request bit
OSD interrupt request
bit
V
request bit
A-D conversion • INT3
interrupt request bit (ADR)
SYNC
(OSDR)
interrupt
M37280MF–XXXSP, M37280MK–XXXSP
Name
(TM1R)
(TM2R)
(TM3R)
(TM4R)
(VSCR)
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 : No interrupt request issued
1 : Interrupt request issued
Functions
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
16
]
After reset R W
0
0
0
0
0
0
0
0
M37280EKSP
R
R
R
R
R
R
R
R
Address 00FC
—
Rev. 1.0
16