Samsung S3C2440A - Manual (Page 367)

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