Allwinner A20 - Page 652

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 652 / 812
Offset: 0x2C
Register Name: IR_RXINT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
1: Enable
2
R/W
0
RISI_EN
Receiver Illegal Symbol Interrupt Enable
0: Disable
1: Enable
1
R/W
0
RPEI_EN
Receiver Packet End Interrupt Enable
0: Disable
1: Enable
0
R/W
0
ROI_EN
Receiver FIFO Overrun Interrupt Enable
0: Disable
1: Enable
6.6.3.13. IR RECEIVER STATUS REGISTER
Offset: 0x30
Register Name: IR_RXSTA
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:13
/
/
/
12:8
R
0
RAC
RX FIFO Available Counter
0: No available data in RX FIFO
1: 1 byte available data in RX FIFO
2: 2 byte available data in RX FIFO
…
16: 16 byte available data in RX FIFO
7:5
/
/
/
4
R/W
0
RA
RX FIFO Available
0: RX FIFO not available according its level
1: RX FIFO available according its level