Allwinner A20 - Page 270

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 270 / 812
Offset: 0xA0
Register Name: PE_DAT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:12
/
/
/
11:0
R/W
0
PE_DAT
If the port is configured as input, the corresponding bit is the
pin state. If the port is configured as output, the pin state is the
same as the corresponding bit. The read bit value is the value
setup by software. If the port is configured as functional pin,
the undefined value will be read.
1.19.4.42. PE MULTI-DRIVING REGISTER 0
Offset: 0xA4
Register Name: PE_DRV0
Default Value: 0x0055_5555
Bit
Read/Write
Default
Description
31:24
/
/
/
[2i+1:2i]
(i=0~11)
R/W
0x1
PE_DRV
PE[n] Multi-Driving Select (n = 0~11)
00: Level 0 01: Level 1
10: Level 2 11: Level 3
1.19.4.43. PE MULTI-DRIVING REGISTER 1
Offset: 0xA8
Register Name: PE_DRV1
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:0
/
/
/
1.19.4.44. PE PULL REGISTER 0
Offset: 0xAC
Register Name: PE_PULL0
Default Value: 0x0000_0000