DS90UB926Q Datasheet, PDF (41/57 Pages) Texas Instruments – 5 - 85 MHz 24-bit Color FPD-Link III Deserializer with Bidirectional Control Channel

DS90UB926Q
ADD
(dec)
35
ADD Register
(hex) Name
0x23 General
Purpose
Control
Bit(s)
7
6:5
4
3
2
1
0
36 0x24 BIST Control 7:4
3
2:1
0
37 0x25 BIST Error
7:0
38 0x26 SCL High
7:0
Time
39 0x27 SCL Low
7:0
Time
Register
Type
RW
R
R
R
R
R
RW
RW
RW
R
RW
RW
Default Function Descriptions
(hex)
0x10
Rx RGB
Checksum
RX RGB Checksum Enable Setting this bit enables the
Receiver to validate a one-byte checksum following
each video line. Checksum failures are reported in the
STS register
Reserved
Mode_Sel Mode Select is Done
LFMODE Low Frequency Mode Status
Repeater Repeater Mode Status
Backward Backward Compatible Mode Status
I2S
I2S Channel B Status
Channel B
0x08
Reserved
BIST Pin
Config
BIST Configured through Pin
1: BIST configured through pin
0: BIST configured through register bit
BIST Clock
Source
BIST Clock Source
00: External Pixel Clock
01: 33 MHz Oscillator
10: Reserved
11: 25 MHz Oscillator
BIST
Enable
BIST Control
1: Enabled
0: Disabled
0x00 BIST Error BIST Error Count
Count
0x83 SCL High
Time
I2C Master SCL High Time
This field configures the high pulse width of the SCL
output when the Deserializer is the Master on the local
I2C bus. Units are 50 ns for the nominal oscillator clock
frequency. The default value is set to provide a
minimum 5us SCL high time with the internal oscillator
clock running at 26MHz rather than the nominal
20MHz.
0x84 SCL Low
Time
I2C SCL Low Time
This field configures the low pulse width of the SCL
output when the De-Serializer is the Master on the local
I2C bus. This value is also used as the SDA setup time
by the I2C Slave for providing data prior to releasing
SCL during accesses over the Bidirectional Control
Channel. Units are 50 ns for the nominal oscillator
clock frequency. The default value is set to provide a
minimum 5us SCL low time with the internal oscillator
clock running at 26MHz rather than the nominal
20MHz.
Copyright © 1999-2012, Texas Instruments Incorporated
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