DS90UB947-Q1 Datasheet, PDF (45/81 Pages) Texas Instruments – 1080p OpenLDI to FPD-Link III Serializer

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ADD
(dec)
18
ADD
(hex)
0x12
Register Name
Data Path Control
19
0x13 General Purpose
Control
DS90UB947-Q1
SNLS454 – NOVEMBER 2014
Table 10. Serial Control Bus Registers (continued)
Bit(s)
7
6
5
4
3
2
1
0
7
6:4
3
2:0
Register
Type
RW
RW
RW
RW
RW
RW
RW
R
R
R
R
Default
(hex)
0x00
0x88
Function
Description
Reserved.
PASS RGB
Setting this bit causes RGB data to be sent independent of DE in UH
devices, which can be used to allow UH devices to interoperate with
UB devices. However, setting this bit blocks packetized audio. This bit
does not need to be set in UB devices.
1: Pass RGB independent of DE.
0: Normal operation.
DE Polarity
This 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
Regenerate I2S data from Repeater I2S pins.
0: Repeater pass through I2S from video pins (default).
1: Repeater regenerate I2S from I2S pins.
I2S CHANNEL B 1: Set I2S Channel B Enable from reg_12[0].
ENABLE
0: I2S Channel B Disabled.
OVERRIDE
Video Select
Selects 18-bit or 24-bit video.
1: Select 18-bit video mode.
0: Select 24-bit video mode.
I2S Transport
Select
Select I2S transport mode:
0: Enable I2S Data Island transport (default).
1: Enable I2S Data Forward Channel Frame transport.
I2S CHANNEL B
ENABLE
I2S Channel B Enable.
1: Enable I2S Channel B on B1 input.
0: I2S Channel B disabled.
Note that in a repeater, this bit may be overridden by the in-band I2S
mode detection.
MODE_SEL1
Done
Indicates MODE_SEL1 value has stabilized and has been latched.
MODE_SEL1
Decode
Returns the 3-bit decode of the MODE_SEL1 pin.
MODE_SEL0
Done
Indicates MODE_SEL0 value has stabilized and has been latched.
MODE_SEL0
Decode
Returns the 3-bit decode of the MODE_SEL0 pin.
Copyright © 2014, Texas Instruments Incorporated
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