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S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
IRQ
— Interrupt Request Register
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7
.6
.5
.4
.3
.2
.1
.0
.7
.6
0
0
R
R
Register addressing mode only
Level 7 (IRQ7) Request Pending Bit; External Interrupt P1.4–1.7
0
Not pending
1
Pending
Level 6 (IRQ6) Request Pending Bit; External Interrupt P1.3
0
Not pending
1
Pending
Level 5 (IRQ5) Request Pending Bit; External Interrupt P0.2
0
Not pending
1
Pending
Level 4 (IRQ4) Request Pending Bit; External Interrupt P0.1
0
Not pending
1
Pending
Level 3 (IRQ3) Request Pending Bit; External Interrupt P0.0
0
Not pending
1
Pending
Level 2 (IRQ2) Request Pending Bit; Watch Timer Overflow
0
Not pending
1
Pending
Level 1 (IRQ1) Request Pending Bit; SIO Interrupt
0
Not pending
1
Pending
Level 0 (IRQ0) Request Pending Bit; Timer 1/A Match, Timer B Match
0
Not pending
1
Pending
.5
.4
.3
0
0
0
R
R
R
CONTROL REGISTER
DCH
.2
.1
0
0
R
R
Set 1
.0
0
R
4-19
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