DS90UB925Q-Q1 Datasheet, PDF (33/51 Pages) Texas Instruments – 5 to 85 MHz 24-Bit Color FPD-Link III Serializer With Bidirectional Control Channel

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DS90UB925Q-Q1
SNLS407D – APRIL 2012 – REVISED OCTOBER 2014
Register Maps (continued)
ADD
(dec)
17
18
19
ADD
(hex)
0x11
0x12
0x13
REGISTER
NAME
GPO_REG8
and
GPO_REG7
Configurations
Data Path
Control
Mode Status
Table 6. Serial Control Bus Registers (continued)
BIT(S)
7
6:5
4
3
2:1
0
7:6
5
4
3
2
1
0
7:5
4
3
2
1
0
REGIST
ER
TYPE
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
R
R
R
R
R
DEFAULT
(hex)
FUNCTION
DESCRIPTION
0x00
0x00
0x10
GPO_REG
8 Output
Value
Local GPO_REG8 output value
This value is output on the GPO pin when the GPO
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
7 Output
Value
Local GPO_REG7 output value
This value is output on the GPO pin when the GPO
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
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 18–bit video select
Select
1: Select 18-bit video mode
Note: use of GPIO(s) on unused inputs must be
enabled by register.
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
Channel B
Enable
I2S Channel B Enable
1: Enable I2S Channel B on B1 input
0: I2S Channel B disabled
Reserved
MODE_SEL MODE_SEL Status
1: MODE_SEL decode circuit is completed
0: MODE_SEL decode circuit is not completed
Low
Frequency
Mode
Low Frequency Mode Status
1: Low frequency (5 - <15 MHz)
0: Normal frequency (15 - 85 MHz)
Repeater
Mode
Repeater Mode Status
1: Repeater mode ON
0: Repeater Mode OFF
Backward Backward Compatible Mode Status
Compatible 1: Backward compatible ON
Mode
0: Backward compatible OFF
I2S
Channel B
Mode
I2S Channel B Mode Status
1: I2S Channel B ON, 18-bit RGB mode with I2S_DB
enabled
0: I2S Channel B OFF; normal 24-bit RGB mode
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