GS9062-CFE3 datasheet(28/46 Pages) GENNUM

28 / 46 page

GS9062 Data Sheet

22209 - 7

February 2007

28 of 46

3.6.3 Packet Generation and Insertion

In addition to input data blanking and automatic video standards detection, the

GS9062 may also calculate, assemble and insert into the data stream various

types of ancillary data packets and TRS ID words.

These features are only available when the device is set to operated in SMPTE

mode and the IOPROC_EN/DIS pin is set HIGH. Individual insertion features may

be enabled or disabled via the IOPROC_DISABLE register (Table 3-5).

All of the IOPROC_DISABLE register bits default to '0' after device reset, enabling

all of the processing features. To disable any individual error correction feature, the

host interface must set the corresponding bit HIGH in this register.

Table 3-5: Host Interface Description for Internal Processing Disable Register

Bit

Name

Description

R/W

Default

IOPROC_DISABLE

Address: 00h

15-9

Not Used

H_CONFIG

Horizontal sync timing input configuration. Set LOW when

the H input timing is based on active line blanking (default).

Set HIGH when the H input timing is based on the H bit of

the TRS words. See Figure 3-2.

R/W

Not Used

352M_INS

SMPTE352M packet insertion. The IOPROC_EN/DIS pin

and SMPTE_BYPASS pin must also be set HIGH. Set HIGH

to disable.

R/W

ILLEGAL_REMAP

Illegal Code Remapping. Detection and correction of illegal

code words within the active picture area (AP). The

IOPROC_EN/DIS pin and SMPTE_BYPASS pin must also

be set HIGH. Set HIGH to disable.

R/W

EDH_CRC_INS

Error Detection & Handling (EDH) Cyclical Redundancy

Check (CRC) error correction. The IOPROC_EN/DIS pin

and SMPTE_BYPASS pin must also be set HIGH. Set HIGH

to disable.

R/W

ANC_CSUM_INS

Ancillary Data Checksum insertion. The IOPROC_EN/DIS

pin and SMPTE_BYPASS pin must also be set HIGH. Set

HIGH to disable.

R/W

2-1

Not Used

TRS_INS

Timing Reference Signal Insertion. Occurs only when

IOPROC_EN/DIS is HIGH and SMPTE_BYPASS is HIGH.

Set HIGH to disable.

R/W

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