Allwinner A20 - Page 442

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 442 / 812
Offset: 0x00c
Register name: HPD
Bits
Read
/Write
Default
/Hex
Description
0: RX pull low
12
R
/
RX_ACTIVE_SENSE(PIN TX1-)
1: RX pull high
0: RX pull low
11
R
/
RX_ACTIVE_SENSE(PIN TX0+)
1: RX pull high
0: RX pull low
10
R
/
RX_ACTIVE_SENSE(PIN TX0-)
1: RX pull high
0: RX pull low
9
R
/
RX_ACTIVE_SENSE(PIN TXC+)
1: RX pull high
0: RX pull low
8
R
/
RX_ACTIVE_SENSE(PIN TXC-)
1: RX pull high
0: RX pull low
7:1
/
/
reserved
0
R
0
HotPlug_DET
1: HPD Detect high
0: HPD Detect low
5.2.4.5. VIDEO CONTROL REGISTER
Offset: 0x010
Register name: VID_Ctrl
Bits
Read
/Write
Default
/Hex
Description
31
R/W
0
VIDEO_EN
0:Video module disable
1:Video module operating
30
R/W
0
HDMI_MODE:
0:DVI
1:HDMI