Allwinner A20 - Page 255

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 255 / 812
Offset: 0x4C
Register Name: PC_CFG1
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
110: Reserved 111: Reserved
7
/
/
/
6:4
R/W
0
PC9_SELECT
000: Input 001: Output
010: NDQ1 011: SDC2_D1
100: Reserved 101: Reserved
110: Reserved 111: Reserved
3
/
/
/
2:0
R/W
0
PC8_SELECT
000: Input 001: Output
010: NDQ0 011: SDC2_D0
100: Reserved 101: Reserved
110: Reserved 111: Reserved
1.19.4.21. PC CONFIGURE REGISTER 2
Offset: 0x50
Register Name: PC_CFG2
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31
/
/
/
30:28
R/W
0
PC23_SELECT
000: Input 001: Output
010: Reserved 011: SPI0_CS0
100: Reserved 101: Reserved
110: Reserved 111: Reserved
17
/
/
/
26:24
R/W
0
PC22_SELECT
000: Input 001: Output
010: NCE7 011: SPI2_MISO
100: Reserved 101: Reserved
110: Reserved 111: Reserved
23
/
/
/