Allwinner A20 - Page 648

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 648 / 812
Offset: 0x18
Register Name: IR_RXCNT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
This field contains the length of the address, control and data.
The length are (N+1) bytes.
0: no bytes received
N: N bytes received
It can automatically clear by Irda Controller when new packet
is found.
6.6.3.8. IR TRANSMITTER FIFO REGISTER
Offset: 0x1C
Register Name: IR_TXFIFO
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:8
/
/
/
7:0
W
0
TX_DATA
Transmitter Byte FIFO
6.6.3.9. IR RECEIVER FIFO REGISTER
Offset: 0x20
Register Name: IR_RXFIFO
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:8
/
/
/
7:0
R
0
RX_DATA
Receiver Byte FIFO
6.6.3.10. IR TRANSMITTER INTERRUPT CONTROL REGISTER
Offset: 0x24
Register Name: IR_TXINT
Default Value: 0x0000_0000