GS2971 datasheet(97/148 Pages) SEMTECH

97 / 148 page

GS2971 3Gb/s, HD, SD SDI Receiver

Data Sheet

45898 - 2

September 2012

97 of 148

000h

IOPROC_1

ANC_CHECKSUM

_INSERTION_DS1_MASK

3Disables insertion of ancillary data

checksums for 3G Level B Data

Stream 1, 3G Level A, HD and SD

inputs.

R/W

CRC_INS_DS1_MASK2

Disables insertion of HD/3G CRC

words for 3G Level B Data Stream

1, 3G Level A, and HD inputs.

R/W

LNUM_INS_DS1_MASK1

Disables insertion of line numbers

for 3G Level B Data Stream 1, 3G

Level A, and HD inputs.

R/W

TRS_INS_DS1_MASK0

Disables insertion of TRS words for

3G Level B Data Stream 1, 3G Level

A, HD and SD inputs.

R/W

001h

IOPROC_2

RSVD

15-13

Reserved.

R/W

N/A

TRS_WORD_REMAP_DS2

_DISABLE

Disables 8-bit TRS word remapping

in Data Stream 2 (3G Level B only).

R/W

RSVD

Reserved.

R/W

REGEN_352M_MASK10

Disables regeneration of the

SMPTE 352M packet for 3G Level B

data. Note: this bit needs to be

enabled via the host interface to

disable SMPTE 352M packet

generation. It is strongly

recommended to set this bit LOW

only when Level B to Level A

conversion is enabled.

R/W

DS_SWAP_3G

Swaps Data Stream 1 (DS1) and

Data Stream 2 (DS2) at the output

in 3G mode.

In 20-bit output mode, DS1 shall be

present on DOUT pins [19:10] and

DS2 shall be present on DOUT pins

[9:0] by default. When

DS_SWAP_3G is set to '1', DS2 shall

be present on DOUT pins [19:10]

and DS1 shall be present on DOUT

pins [9:0]

In 10-bit (DDR) output mode, DS2

shall precede DS1 by default. When

DS_SWAP_3G is set to '1', DS1 shall

precede DS2.

R/W

LEVEL_B2A_CONV

_DISABLE_MASK

8Disable conversion of a 3G Level B

input to a 3G Level A format. Only

effective if in 3G Level B mode.

Default is active HIGH (disabled), so

Level B inputs are formatted as

Level B outputs.

R/W

Table 4-29: Video Core Configuration and Status Registers (Continued)

Address

Bit Name

Bit

Description

R/W

Default

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