
S3C2440A RISC MICROPROCESSOR
INTERRUPT CONTROLLER
14-17
SUB SOURCE PENDING (SUBSRCPND) REGISTER
You can clear a specific bit of the SUBSRCPND register by writing a data to this register. It clears only the bit
positions of the SUBSRCPND register corresponding to those set to one in the data. The bit positions corresponding
to those that are set to 0 in the data remains as they are.
Register
Address
R/W
Description
Reset Value
SUBSRCPND
0X4A000018
R/W
Indicate the interrupt request status.
0 = The interrupt has not been requested.
1 = The interrupt source has asserted the
interrupt request.
0x00000000
SUBSRCPND
Bit
Description
Initial State
Reserved
[31:15]
Not used
0
INT_AC97
[14]
0 = Not requested, 1 = Requested
0
INT_WDT
[13]
0 = Not requested, 1 = Requested
0
INT_CAM_P
[12]
0 = Not requested, 1 = Requested
0
INT_CAM_C
[11]
0 = Not requested, 1 = Requested
0
INT_ADC_S
[10]
0 = Not requested, 1 = Requested
0
INT_TC
[9]
0 = Not requested, 1 = Requested
0
INT_ERR2
[8]
0 = Not requested, 1 = Requested
0
INT_TXD2
[7]
0 = Not requested, 1 = Requested
0
INT_RXD2
[6]
0 = Not requested, 1 = Requested
0
INT_ERR1
[5]
0 = Not requested, 1 = Requested
0
INT_TXD1
[4]
0 = Not requested, 1 = Requested
0
INT_RXD1
[3]
0 = Not requested, 1 = Requested
0
INT_ERR0
[2]
0 = Not requested, 1 = Requested
0
INT_TXD0
[1]
0 = Not requested, 1 = Requested
0
INT_RXD0
[0]
0 = Not requested, 1 = Requested
0
Map To SRCPND
SRCPND
SUBSRCPND
Remark
INT_UART0
INT_RXD0,INT_TXD0,INT_ERR0
INT_UART1
INT_RXD1,INT_TXD1,INT_ERR1
INT_UART2
INT_RXD2,INT_TXD2,INT_ERR2
INT_ADC
INT_ADC_S, INT_TC
INT_CAM
INT_CAM_C, INT_CAM_P
INT_WDT_AC97
INT_WDT, INT_AC97