DS90UB925Q Datasheet, PDF (30/41 Pages) Texas Instruments – 5 - 85 MHz 24-bit Color FPD-Link III Serializer with Bidirectional Control Channel

DS90UB925Q
ADD
(dec)
17
18
ADD
(hex)
0x11
0x12
Register
Name
GPO_REG8
and
GPO_REG7
Configurations
Data Path
Control
Bit(s)
Register
Type
7
RW
6:5
4
RW
3
RW
2:1
0
RW
7
6
RW
5
RW
4
RW
3
RW
2
RW
1
RW
0
RW
Default
(hex)
0x00
0x00
Function Description
GPO_REG Local GPO_REG8 output value
8 Output This value is output on the GPO pin when the GPO
Value
function is enabled.
(The local GPO direction is Output, and remote
GPO control is disabled)
Reserved
GPO_REG GPO_REG8 function enable
8 Enable 1: Enable GPO operation
0: Enable normal operation
GPO_REG Local GPO_REG7 output value
7 Output This value is output on the GPO pin when the GPO
Value
function is enabled, the local GPO direction is
Output, and remote GPO control is disabled.
Reserved
GPO_REG GPO_REG7 function enable
7 Enable 1: Enable GPO operation
0: Enable normal operation
Reserved
Pass RGB
Setting this bit causes RGB data to be sent
independent of DE.
It allows operation in systems which may not use DE
to frame video data or send other data when DE is
de-asserted.
1: Pass RGB independent of DE
0: Normal operation
(DE gates RGB data transmission - RGB data is
transmitted only when DE is active)
DE Polarity The bit indicates the polarity of the DE (Data Enable)
signal.
1: DE is inverted (active low, idle high)
0: DE is positive (active high, idle low)
I2S
Repeater
Regen
I2S Repeater Regeneration
1: Repeater regenerate I2S from I2S pins
0: Repeater pass through I2S from video pins
I2S
Channel B
Enable
Override
I2S Channel B Enable
1: Set I2S Channel B Enable from reg_12[0]
0: Set I2S Channel B Enable from MODE_SEL pin
18-bit
Video
Select
18–bit video select
1: Select 18-bit video mode
0: Select 24-bit video mode
I2S
Transport
Select
I2S Transport Mode Slect
1: Enable I2S Data Forward Channel Frame
Transport
0: Enable I2S Data Island Transport
I2S
I2S Channel B Enable
Channel B 1: Enable I2S Channel B on B1 input
Enable
0: I2S Channel B disabled
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