DS90UH927Q-Q1 Datasheet, PDF (38/68 Pages) Texas Instruments – 5-MHz to 85-MHz 24-Bit Color FPD-Link III Serializer with HDCP

DS90UH927Q-Q1
SNLS433C – NOVEMBER 2012 – REVISED JANUARY 2015
www.ti.com
Register Maps (continued)
ADD
(dec)
19
20
22
Table 5. Serial Control Bus Registers (continued)
ADD
(hex)
Register Name
Bit
0x13 General
7
Purpose Control
6
5
4
3
2
1
0
0x14 BIST Control
7:3
2:1
0
0x16 BCC Watchdog 7:1
Control
0
Register
Type
R
RW
RW
R
R
R
R
RW
R
RW
RW
Default
(hex)
0x10
0x00
0xFE
Function Description
MAPSEL
Mode
Returns Map Select Mode (MAPSEL) pin status
MAPSEL
Override
FPD-Link Map Select (MAPSEL) set by input pin or
register
0: Map Select is set by input pin (default)
1: Map Select is set by register bit 0x13[5]
MAPSEL
Value
FPD-Link Map Select (MAPSEL) value when 0x13[6]
is set
0: LSBs on RxIN3± (default)
1: MSBs on RxIN3±
Reserved
LFMODE
Status
Low Frequency Mode (LFMODE) pin status
0: 15 ≤ RxCLKIN ≤ 85 MHz (default)
1: 5 ≤ RxCLKIN < 15 MHz
REPEAT
Status
Repeater Mode (REPEAT) pin Status
0: Non-repeater (default)
1: Repeater
BKWD
Status
I2S_DB
Status
Backward Compatible Mode (BKWD) Status
0: Compatible to DS90UB926/8Q-Q1 (default)
1: Backward compatible to DS90UR906/8Q-Q1
I²S Channel B Mode (I2S_DB) Status
0: I2S_DB inactive (default)
1: I2S_DB active
Reserved
OSC Clock
Source
Internal OSC clock select for Functional Mode or
BIST. Functional Mode when PCLK is not present and
0x03[1]=1.
00: 33-MHz Oscillator (default)
01: 33-MHz Oscillator
Clock Source in BIST mode
00: External Pixel Clock (default)
01: 33-MHz Oscillator
Note: In LFMODE=1, the internal oscillator is 12.5
MHz
BIST
Enable
BIST Control
0: Disabled (default)
1: Enabled
Timer Value The watchdog timer allows termination of a control
channel transaction if it fails to complete within a
programmed amount of time. This field sets the
Bidirectional Control Channel Watchdog Timeout
value in units of 2 milliseconds. This field should not
be set to 0.
Timer
Control
Disable BCC Watchdog Timer
0: Enable BCC Watchdog Timer operation (default)
1: Disable BCC Watchdog Timer operation
38
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