Allwinner A20 - Page 709

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 709 / 812
Offset: 0x1C
Register Name: DA_INT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
2
R/W
0
RXUI_EN
RX FIFO Under run Interrupt Enable
0: Disable
1: Enable
1
R/W
0
RXOI_EN
RX FIFO Overrun Interrupt Enable
0: Disable
1: Enable
0
R/W
0
RXAI_EN
RX FIFO Data Available Interrupt Enable
0: Disable
1: Enable
6.9.5.9. DIGITAL AUDIO INTERRUPT STATUS REGISTER
Offset: 0x20
Register Name: DA_ISTA
Default Value: 0x0000_0010
Bit
Read/Write
Default
Description
31:7
/
/
/
6
R/W
0
TXU_INT
TX FIFO Under run Pending Interrupt
0: No Pending Interrupt
1: FIFO Under run Pending Interrupt
5
R/W
0
TXO_INT
TX FIFO Overrun Pending Interrupt
0: No Pending Interrupt
1: FIFO Overrun Pending Interrupt
Write ‘1’ to clear this interrupt
4
R/W
1
TXE_INT
TX FIFO Empty Pending Interrupt
0: No Pending IRQ
1: FIFO Empty Pending Interrupt
Write ‘1’ to clear this interrupt or automatic clear if interrupt