DS92LX1621 Datasheet, PDF (20/44 Pages) National Semiconductor (TI) – 10 - 50 MHz Channel Link III Serializer and Deserializer with Embedded Bi-Directional Control Channel

TABLE 1. DS92LX1621 Control Registers
Addr
(Hex)
Name
Bits Field
R/W
7:1 DEVICE ID
RW
0
I²C Device ID
0 SER ID
RW
7:3 RESERVED
2 STANDBY
RW
1
Reset
DIGITAL
1 _RESET0
RW
0 DIGITAL RESET1 RW
2
Reserved
7:0 RESERVED
CRC Fault
RX CRC
Tolerant
7 CHECKER
RW
Transmission
ENABLE
CRC Fault
Tolerant
Transmission
6
TX CRC GEN
ENABLE
RW
VDDIO Control 5 VDDIO CONTOL RW
3
VDDIO Mode
4 VDDIO MODE
RW
I²C Pass-
I²C PASS-
3
RW
Through
THROUGH
Reserved
2 RESERVED
PCLK_AUTO
1 PCLK_AUTO
RW
TRFB
0 TRFB
RW
7:6 RESERVED
4
CRC
Transmission
5 CRC RESET
RW
4:0 RESERVED
Default Description
0x58
7-bit address of Serializer; 0x58h
(1011_000X) default
0: Device ID is from CAD
0
1: Register I²C Device ID overrides CAD
0
Reserved
Standby mode control. Retains control register data.
Supported only when M/S = 0
0
0: Enabled. Low-current Standby mode with wake-up
capability. Suspends all clocks and functions.
1: Disabled. Standby and wake-up disabled
0
1: Resets the device to default register values. Does not
self clear affect device I²C Bus or Device ID
0
1: Digital Reset, retains all register values
self clear
0x20'h Reserved
Back Channel CRC Enable
0: Disable
1
1: Enable
For propper CRC operation, control register 0x03h b[6]
of the Deserializer must be enabled.
Forward Channel CRC Enable
0: Disable
1
1: Enable
For propper CRC operation, control register 0x03h b[7]
of the Deserializer must be enabled.
Auto V_DDIO detect
1
0: Disable
1: Enable (auto detect mode)
VDDIO voltage set
1
Only used when VDDIOCONTROL = 0
0: 1.8V
1: 3.3V
I²C Pass-Through Mode
1
0: Disabled
1: Enabled
0
Reserved
Switch over to internal 25 MHz oscillator clock in the
1
absence of PCLK
0: Disable
1: Enable
Pixel Clock Edge Select:
0: Parallel Interface Data is strobed on the Falling Clock
1
Edge.
1: Parallel Interface Data is strobed on the Rising Clock
Edge.
0
Reserved
0
1: CRC Reset.
Clears CRC Error counter.
Reserved
19
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