S3C44B0X Datasheet, PDF (292/424 Pages) Samsung semiconductor – RISC MICROPROCESSOR

S3C44B0X RISC MICROPROCESSOR
INTERRUPT CONTROLLER
IRQ INTERRUPT SERVICE PENDING REGISTER (I_ISPR)
I_ISPR indicates the interrupt being currently serviced. Although the several interrupt pending bits are all turned on,
only one bit will be turned on.
Register
I_ISPR
Address
0x01E00020
R/W
Description
R IRQ interrupt service pending register
Reset Value
0x00000000
I_ISPR
EINT0
EINT1
EINT2
EINT3
EINT4/5/6/7
INT_TICK
INT_ZDMA0
INT_ZDMA1
INT_BDMA0
INT_BDMA1
INT_WDT
INT_UERR0/1
INT_TIMER0
INT_TIMER1
INT_TIMER2
INT_TIMER3
INT_TIMER4
INT_TIMER5
INT_URXD0
INT_URXD1
INT_IIC
INT_SIO
INT_UTXD0
INT_UTXD1
INT_RTC
INT_ADC
Bit
[25] 0 = not serviced
[24] 0 = not serviced
[23] 0 = not serviced
[22] 0 = not serviced
[21] 0 = not serviced
[20] 0 = not serviced
[19] 0 = not serviced
[18] 0 = not serviced
[17] 0 = not serviced
[16] 0 = not serviced
[15] 0 = not serviced
[14] 0 = not serviced
[13] 0 = not serviced
[12] 0 = not serviced
[11] 0 = not serviced
[10] 0 = not serviced
[9] 0 = not serviced
[8] 0 = not serviced
[7] 0 = not serviced
[6] 0 = not serviced
[5] 0 = not serviced
[4] 0 = not serviced
[3] 0 = not serviced
[2] 0 = not serviced
[1] 0 = not serviced
[0] 0 = not serviced
Description
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
1 = serviced now
Initial State
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11-21