DS90UH940-Q1 Datasheet, PDF (56/87 Pages) Texas Instruments – FPD-Link III to CSI-2 Deserializer

DS90UH940-Q1
SNLS478A – NOVEMBER 2014 – REVISED JANUARY 2016
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Register Maps (continued)
ADD
(hex)
0x22
Register
Name
Datapath
Control
Table 12. Serial Control Bus Registers (continued)
Bit(s) Function
Type
7
OVERRIDE FC RW
CONFIG
6
PASS RGB
RW
(Loaded from
remote SER)
5
DE POLARITY RW
(Loaded from
remote SER)
4
I2S_RPTR_REG RW
EN
(Loaded from
remote SER)
3
I2S 4-CHANNEL RW
ENABLE
OVERRIDE
(Loaded from
remote SER)
2
18-BIT VIDEO RW
SELECT
(Loaded from
remote SER)
1
I2S TRANSPORT RW
SELECT
(Loaded from
remote SER)
0
I2S 4-CHANNEL RW
ENABLE
(Loaded from
remote SER)
Default
Description
Value (hex)
0
1: Disable loading of this register from the forward channel,
keeping locally written values intact
0: Allow forward channel loading of this register
0
Setting this bit causes RGB data to be sent independent of DE.
This allows operation in systems which may not use DE to
frame video data or send other data when DE is deasserted.
Note that this bit prevents HDCP operation and blocks
packetized audio. This bit has no effect when paired with a
serializer that does not support HDCP.
1: Pass RGB independent of DE
0: Normal operation
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
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)
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
Regenerate I2S Data from Repeater I2S pins.
1: Don't output packetized audio data on RGB video output pins
0: Output packetized audio on RGB video output pins (Default).
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
1: Set I2S 4-Channel Enable from bit of this register
0: Set I2S 4-Channel disabled
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
1: Select 18-bit video mode
0: Select 24-bit video mode
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
1: Enable I2S In-Band Transport
0: Enable I2S Data Island Transport
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
0
I2S 4-Channel Enable
1: Enable I2S 4-Channel
0: Disable I2S 4-Channel
Note: this bit is automatically loaded from the remote serializer
unless bit 7 of this register is set.
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