DS90UH927Q Datasheet, PDF(31/59 Page) Texas Instruments – 5MHz - 85MHz 24-bit Color FPD-Link III Serializer with HDCP

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DS90UH927Q Datasheet, PDF (31/59 Pages) Texas Instruments – 5MHz - 85MHz 24-bit Color FPD-Link III Serializer with HDCP

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DS90UH927Q

ADD

(dec)

ADD Register

(hex) Name

0x00 I2C Device ID

1 0x01 Reset

3 0x03 General

Configuration

TABLE 5. Serial Control Bus Registers

Bit(s)

7:1

6:2

Type

Default

(hex)

IDx

0x00

0xD2

Function Description

Device ID 7âbit address of Serializer

Note: Read-only unless bit 0 is set

ID Setting I2C ID Setting

0: Device ID is from IDx pin

1: Register I2C Device ID overrides IDx pin

Remote

Auto

Power

Down

Remote Auto Power Down

0: Do not power down when no Bidirectional

Control Channel link is detected (default)

1: Enable power down when no Bidirectional

Control Channel link is detected

Reserved.

Digital

RESET1

Reset the entire digital block including registers

This bit is self-clearing.

0: Normal operation (default)

1: Reset

Digital

RESET0

Reset the entire digital block except registers

This bit is self-clearing

0: Normal operation (default)

1: Reset

Back

channel

CRC

Checker

Enable

Back Channel Check Enable

0: Disable

1: Enable (default)

Reserved.

I2C

Automatically Acknowledge I2C Remote Write

Remote When enabled, I2C writes to the Deserializer (or

Write Auto any remote I2C Slave, if I2C PASS ALL is

Acknowle enabled) are immediately acknowledged without

dge

waiting for the Deserializer to acknowledge the

write. This allows higher throughput on the I2C

bus. Note: this mode will prevent any NACK or

read/write error indication from a remote device

from reaching the I2C master.

0: Disable (default)

1: Enable

Filter

Enable

HS, VS, DE two clock filter When enabled, pulses

less than two full PCLK cycles on the DE, HS, and

VS inputs will be rejected

0: Filtering disable

1: Filtering enable (default)

I2C Pass-

through

I2C Pass-Through Mode

Read/Write transactions matching any entry in the

DeviceAlias registers will be passed through to the

remote deserializer I2C interface.

0: Pass-Through Disabled (default)

1: Pass-Through Enabled

Reserved

PCLK

Auto

Switch over to internal OSC in the absence of

PCLK

0: Disable auto-switch

1: Enable auto-switch (default)

TRFB

Reserved

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