DS90UB901Q_15 Datasheet, PDF (21/50 Pages) Texas Instruments – 10 - 43MHz 14 Bit Color FPD-Link III Serializer and Deserializer with Bidirectional Control Channel

DS90UB901Q, DS90UB902Q
www.ti.com
SNLS322E – JUNE 2010 – REVISED APRIL 2013
Table 2. DS90UB902Q Control Registers (continued)
Addr
(Hex)
Name
Bits
Field
R/W
TX CRC
7 CHECKER
RW
CRC Fault
ENABLE
Tolerant
Transmission
6
RX CRC GEN
ENABLE
RW
VDDIO Control
5 VDDIO CONTROL RW
3
VDDIO Mode
4 VDDIO MODE
RW
I²C Pass-Through
3
I²C PASS-
THROUGH
RW
Auto ACK
2 AUTO ACK
RW
CRC Reset
1 CRC RESET
RW
RRFB
0 RRFB
RW
4
EQ Control
7:0 EQ
RW
5
RESERVED
7:0 RESERVED
RESERVED
7 RESERVED
SCL Prescale
6:4 SCL_PRESCALE
RW
6
Remote NACK
3
REM_NACK_TIME
R
RW
Remote NACK 2:0 NACK_TIMEOUT
RW
Default
Description
1
1
1
0
1
0
0
1
0x00'h
0x00'h
0
000'b
1
111'b
Back Channel CRC Enable
0: Disable
1: Enable
For proper CRC operation, on Serailizer 0x03h b[6]
control register must be Enabled.
Foward Channel CRC Enable
0: Disable
1: Enable
For proper CRC operation, on Serailizer 0x03h b[7]
control register must be Enabled.
Auto voltage control
0: Disable
1: Enable (auto detect mode)
VDDIO voltage set
Only used when VDDIOCONTROL = 0
0: 1.8V
1: 3.3V
I²C Pass-Through Mode
0: Disabled
1: Enabled
0: Disable
1: Enable
1: CRC reset
Pixel Clock Edge Select
0: Parallel Interface Data is strobed on the Falling Clock
Edge
1: Parallel Interface Data is strobed on the Rising Clock
Edge.
EQ Gain
00'h = ~0.0 dB
01'h = ~4.5 dB
03'h = ~6.5 dB
07'h = ~7.5 dB
0F'h = ~8.0 dB
1F'h = ~11.0 dB
3F'h = ~12.5 dB
FF'h = ~14.0 dB
Reserved
Reserved
Prescales the SCL clock line when reading data byte
from a slave device (MODE = 0)
000 : ~100 kHz SCL (default)
001 : ~125 kHz SCL
101 : ~11 kHz SCL
110 : ~33 kHz SCL
111 : ~50 kHz SCL
Other values are NOT supported.
Remote NACK Timer Enable
In slave mode (MODE = 1) if bit is set the I²C core will
automatically timeout when no acknowledge condition
was detected.
1: Enable
0: Disable
Remote NACK Timeout.
000: 2.0 ms
001: 5.2 ms
010: 8.6 ms
011: 11.8 ms
100: 14.4 ms
101: 18.4 ms
110: 21.6 ms
111: 25.0 ms
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