LMH0031 Datasheet, PDF (18/31 Pages) National Semiconductor (TI) – SMPTE 292M/259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs

Device Operation (Continued)
TABLE 1. Configuration and Control Data Register Summary (Continued)
Register Function
Available on
Bits
Read or Write
Initial Condition
I/O Bus
LSB Clipping Enable
1
R/W
ON
No
Sync Detect Enable
1
R/W
ON
No
De-Dither Enable
1
R/W
OFF
Input
Vert. De-Dither Enable
1
R/W
OFF
Input
Lock Detect
1
R
Output
Unscrambled
Video Data Out
1
R/W
OFF
No
TPG and BIST Operations
Test Pattern Select
6
R/W
000000b
Input
TPG Enable
1
R/W
OFF
Input
Pass/Fail
1
R
Output
VPG Filter Enable
1
R/W
OFF
Input
Reference Clock Operations
Reference Clock
2
R/W
00b
No
External Vclk
1
R/W
OFF
No
Multifunction I/O Bus Operations
I/O Bus Pin Config.
48
R/W
See Table 6
No
Notes
(Note 11) I/O 4
(Note 13)
525/27 MHz/Black
EXT CLK Enabled
(Note 13)
Note 11: Connected to multifunction I/O port at power-on.
Note 12: ON = SET = logic-1, OFF = RESET = logic-0 (positive logic).
Note 13: Special or restricted functionality. Refer to text for details.
TABLE 2. Control Register Bit Assignments
Bit 7
Bit 6
Bit 5
EDH 0 (register address 01h)
CRC ERROR EDH FORCE EDH ENABLE
EDH 1 (register address 02h)
CRC
REPLACE
CRC ERROR CRC ERROR
LUMA
CHROMA
EDH 2 (register address 03h)
F/F FLAG
A/P FLAG
ANC FLAG
ERROR
ERROR
ERROR
ANC 0 (register address 04h)
VIDEO
VIDEO
VIDEO
FIFO-DEPTH(2) FIFO-DEPTH(1) FIFO-DEPTH(0)
ANC 1 (register address 05h)
ANC ID(7)
ANC ID(6)
ANC ID(5)
ANC 2 (register address 06h)
ANC ID(15)
ANC ID(14)
ANC ID(13)
ANC 3 (register address 07h)
ANC MASK(7) ANC MASK(6) ANC MASK(5)
ANC 4 (register address 08h)
ANC
MASK(15)
ANC MASK(14) ANC MASK(13)
ANC 5 (register address 17h)
FIFO
EXTRACT
ENABLE
FIFO CLOCK
ENABLE
FULL MSG
AVAILABLE
Bit 4
F/F UES
A/P UES
ANC UES
ANC FIFO
OVERRUN
ANC ID(4)
ANC ID(12)
ANC
MASK(4)
ANC
MASK(12)
reserved
Bit 3
F/F IDA
A/P IDA
ANC IDA
ANC FIFO
EMPTY
ANC ID(3)
ANC ID(11)
ANC
MASK(3)
ANC
MASK(11)
FIFO FLUSH
STATIC
Bit 2
F/F IDH
A/P IDH
ANC IDH
ANC FIFO
FULL
ANC ID(2)
ANC ID(10)
ANC
MASK(2)
ANC
MASK(10)
reserved
Bit 1
F/F EDA
Bit 0
F/F EDH
A/P EDA
A/P EDH
ANC EDA
ANC EDH
ANC CHECK- ANC CHECK-
SUM ERROR SUM FORCE
ANC ID(1) ANC ID(0)
ANC ID(9) ANC ID(8)
ANC
MASK(1)
ANC
MASK(0)
ANC
MASK(9)
ANC
MASK(8)
MSG FLUSH
MSG TRACK
STATIC
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