DS90UB947-Q1 Datasheet, PDF (26/81 Pages) Texas Instruments – 1080p OpenLDI to FPD-Link III Serializer

DS90UB947-Q1
SNLS454 – NOVEMBER 2014
www.ti.com
8.3.14.1 Repeater Configuration
In the repeater application, this document refers to the DS90UB947-Q1 Serializer or as the Transmitter (TX), and
refers to the DS90UB948-Q1 as the Receiver (RX). Figure 24 shows the maximum configuration supported for
Repeater implementations. Two levels of Repeaters are supported with a maximum of three Transmitters per
Receiver.
Source
TX
1:3 Repeater
TX
RX
TX
TX
1:3 Repeater
TX
RX
TX
TX
1:3 Repeater
RX
Display
RX
Display
RX
Display
TX
RX
TX
RX
Display
RX
Display
TX
1:3 Repeater
TX
RX
TX
RX
Display
RX
Display
RX
Display
TX
RX
Display
Figure 24. Maximum Repeater Application
In a repeater application, the I2C interface at each TX and RX is configured to transparently pass I2C
communications upstream or downstream to any I2C device within the system. This includes a mechanism for
assigning alternate IDs (Slave Aliases) to downstream devices in the case of duplicate addresses.
Upstream
Transmitter
Repeater Node
I2C
Master
Receiver
I2C
FPD-Link
(LVDS)
I2S Audio
Transmitter
I2C
Slave
Transmitter
I2C
Slave
FPD-Link III interfaces
Figure 25. 1:2 Repeater Configuration
Downstream
Receiver
or
Repeater
Downstream
Receiver
or
Repeater
26
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