GS9062-CFE3 datasheet(34/46 Pages) GENNUM

34 / 46 page

GS9062 Data Sheet

22209 - 7

February 2007

34 of 46

3.6.3.4 Ancillary Data Checksum Generation and Insertion

The GS9062 will calculate checksums for all detected ancillary data packets

presented to the device. These calculated checksum values are inserted into the

data stream prior to serialization.

Ancillary data checksum generation and insertion will only take place if the

ANC_CSUM_INS bit of the IOPROC_DISABLE register is set LOW.

3.6.3.5 TRS Generation and Insertion

The GS9062 can generate and insert 10-bit TRS code words into the data stream

as required. This feature is enabled by setting the TRS_INS bit of the

IOPROC_DISABLE register LOW.

TRS word generation will be performed in accordance with the timing parameters

generated by the flywheel which will be locked either to the received TRS ID words

or the supplied H, V, and F timing signals Internal Flywheel on page 23.

3.7 Parallel-To-Serial Conversion

The parallel data output of the internal data processing blocks is fed to the

parallel-to-serial converter. The function of this block is to generate a serial data

stream from the 10-bit or 20-bit parallel data words and pass the stream to the

integrated cable driver.

AP-IDH

Active Picture Internal device error Detected Here flag will be

generated and inserted when IOPROC_EN/DIS and

SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.

R/W

AP-EDA

Active Picture Error Detected Already flag will be generated and

inserted when IOPROC_EN/DIS and SMPTE_BYPASS pins are

HIGH and EDH_CRC_INS bit is LOW.

R/W

AP-EDH

Active Picture Error Detected Here flag will be generated and

inserted when IOPROC_EN/DIS and SMPTE_BYPASS pins are

HIGH and EDH_CRC_INS bit is LOW.

R/W

Table 3-9: Host Interface Description for EDH Flag Register (Continued)

Bit

Name

Description

R/W

Default

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