Allwinner A20 - Page 291

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 291 / 812
Offset: 0x128
Register Name: PI_CFG2
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
110: Reserved 111: Reserved
15
/
/
/
14:12
R/W
0
PI19_SELECT
000: Input 001: Output
010: SPI1_MISO 011: UART2_RX
100: Reserved 101: Reserved
110: EINT31 111: Reserved
11
/
/
/
10:8
R/W
0
PI18_SELECT
000: Input 001: Output
010: SPI1_MOSI 011: UART2_TX
100: Reserved 101: Reserved
110: EINT30 111: Reserved
7
/
/
/
6:4
R/W
0
PI17_SELECT
000: Input 001: Output
010: SPI1_CLK 011: UART2_CTS
100: Reserved 101: Reserved
110: EINT29 111: Reserved
3
/
/
/
2:0
R/W
0
PI16_SELECT
000: Input 001: Output
010: SPI1_CS0 011: UART2_RTS
100: Reserved 101: Reserved
110: EINT28 111: Reserved
1.19.4.75. PI CONFIGURE REGISTER 3
Offset: 0x12C
Register Name: PI_CFG3
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:0
/
/
/