Allwinner A20 - Page 273

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 273 / 812
1.19.4.48. PF CONFIGURE REGISTER 2
Offset: 0xBC
Register Name: PF_CFG2
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:0
/
/
/
1.19.4.49. PF CONFIGURE REGISTER 3
Offset: 0xC0
Register Name: PF_CFG3
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:0
/
/
/
1.19.4.50. PF DATA REGISTER
Offset: 0xC4
Register Name: PF_DAT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:6
/
/
/
5:0
R/W
0
PF_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.
1.19.4.51. PF MULTI-DRIVING REGISTER 0
Offset: 0xC8
Register Name: PF_DRV0
Default Value: 0x0000_0555
Bit
Read/Write
Default
Description
31:12
/
/
/