GS1532 Datasheet, PDF (33/52 Pages) Gennum Corporation – GS1532 HD-LINX-TM II Multi-Rate Serializer

GS1532 Data Sheet
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
Register Name Bit
Name
Description
IOPROC_DISABLE
Address: 000h
15-9
8
–
H_CONFIG
7
–
6
352M_INS
5
ILLEGAL_REMAP
4
EDH_CRC_INS
3
ANC_CSUM_INS
2
CRC_INS
1
LNUM_INS
0
TRS_INS
Not Used.
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.
Not Used.
SMPTE352M packet insertion. In HD mode, 352M
packets are inserted in the Y channel only when the
four VIDEO_FORMAT_IN registers are
programmed with non-zero values. The
IOPROC_EN/DIS pin and SMPTE_BYPASS pin
must also be set HIGH. Set HIGH to disable.
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.
Error Detection & Handling (EDH) Cyclical
Redundancy Check (CRC) error correction. In SD
mode the GS1532 will generate and insert EDH
packets. The IOPROC_EN/DIS pin and
SMPTE_BYPASS pin must also be set HIGH. Set
HIGH to disable.
Ancillary Data Checksum insertion. The
IOPROC_EN/DIS pin and SMPTE_BYPASS pin
must also be set HIGH. Set HIGH to disable.
Y and C line-based CRC insertion. In HD mode,
line-based CRC words are inserted in both the Y
and C channels. The IOPROC_EN/DIS pin and
SMPTE_BYPASS pin must be also set HIGH. Set
HIGH to disable
Y and C line number insertion - HD mode only. The
IOPROC_EN/DIS pin and SMPTE_BYPASS pin
must be set HIGH. Set HIGH to disable.
Timing Reference Signal Insertion. Occurs only
when IOPROC_EN/DIS is HIGH and
SMPTE_BYPASS is HIGH. Set HIGH to disable.
R/W
–
R/W
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
–
0
–
0
0
0
0
0
0
0
21498 - 6 June 2005
33 of 52