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| DS92LX2121_15 Datasheet, PDF (17/44 Pages) Texas Instruments – 10 - 50 MHz DC-Balanced Channel Link III Bi-Directional Control Serializer and Deserializer | |||
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DS92LX2121, DS92LX2122
www.ti.com
SNLS330J â MAY 2010 â REVISED JANUARY 2014
Table 1. DS92LX2121 Control Registers
Addr
(Hex)
Name
Bits Field
R/W Default Description
7:1 DEVICE ID
0
I2C Device ID
0 SER ID
RW
0x58
7-bit address of Serializer; 0x58h
(1011_000X) default
RW
0
0: Device ID is from CAD
1: Register I2C Device ID overrides CAD
7:3 RESERVED
0
Reserved.
2 STANDBY
1
Reset
Standby mode control. Retains control register data.
Supported only when M/S = 0
RW
0
0: Enabled. Low-current Standby mode with wake-up
capability. Suspends all clocks and functions.
1: Disabled. Standby and wake-up disabled
1
DIGITAL
RESET0
RW
0
1: Digital Reset, retained register value
self clear
0 DIGITAL RESET1
RW
0
1: Digital Reset, retains all register values
self clear
2
Reserved
7:0 RESERVED
0x20'h Reserved.
Reserved
7:6 RESERVED
11'b Reserved.
VDDIO Control
5 VDDIO CONTOL
RW
Auto VDDIO detect
1
Allows manual setting of VDDIO by register.
0: Disable
1: Enable (auto detect mode)
VDDIO voltage set
VDDIO Mode
4 VDDIO MODE
RW
1
Only used when VDDIOCONTROL = 0
0: 1.8V
1: 3.3V
3
I2C Pass-Through
3
I2C PASS-
THROUGH
I2C Pass-Through Mode
RW
1
0: Disabled
1: Enabled
Reserved
2 RESERVED
0
Reserved.
PCLK_AUTO
1 PCLK_AUTO
Switch over to internal 25 MHz oscillator clock in the
RW
1
absence of PCLK
0: disable
1: enable
TRFB
0 TRFB
Pixel Clock Edge Select:
0: Parallel Interface Data is strobed on the Falling Clock
RW
1
Edge.
1: Parallel Interface Data is strobed on the Rising Clock
Edge.
4
Reserved
7:0 RESERVED
5
I2C Bus Rate
7:0 I2C BUS RATE
0x80'h Reserved.
I2C SCL frequency is determined by the following: fSCL =
RW
0x40'h
6.25 MHz / Register value (in decimal) 0x40'h = ~100
kHz SCL (default)
Note: Register values <0x32'h are NOT supported.
6
DES ID
7:1 DES DEV ID
RW
0x60'h
Deserializer Device ID = 0x60
(1100_000X) default
0 RESERVED
0
Reserved.
7:1 SLAVE DEV ID
RW
0
Slave Device ID. Sets remote slave I2C address.
7
Slave ID
0 RESERVED
0
Reserved.
8
Reserved
7:0 RESERVED
0
Reserved.
9
Reserved
7:0 RESERVED
0x01'h Reserved.
A
Reserved
7:0 RESERVED
0
Reserved.
B
Reserved
7:0 RESERVED
0
Reserved.
Copyright © 2010â2014, Texas Instruments Incorporated
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Product Folder Links: DS92LX2121 DS92LX2122
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