Allwinner A20 - Page 287

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 287 / 812
Offset: 0x11C
Register Name: PH_PULL1
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
[2i+1:2i]
(i=0~11)
R/W
0x0
PH_PULL
PH[n] Pull-up/down Select (n = 16~27)
00: Pull-up/down disable 01: Pull-up enable
10: Pull-down 11: Reserved
1.19.4.72. PI CONFIGURE REGISTER 0
Offset: 0x120
Register Name: PI_CFG0
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31
/
/
/
30:28
R/W
0
PI7_SELECT
000: Input 001: Output
010: SDC3_D1 011: Reserved
100: Reserved 101: Reserved
110: Reserved 111: Reserved
27
/
/
/
26:24
R/W
0
PI6_SELECT
000: Input 001: Output
010: SDC3_D0 011: Reserved
100: Reserved 101: Reserved
110: Reserved 111: Reserved
23
/
/
/
22:20
R/W
0
PI5_SELECT
000: Input 001: Output
010: SDC3_CLK 011: Reserved
100: Reserved 101: Reserved
110: Reserved 111: Reserved
19
/
/
/
18:16
R/W
0
PI4_SELECT
000: Input 001: Output
010: SDC3_CMD 011: Reserved