參數(shù)資料
型號(hào)： GS9064
元件分類(lèi)： 通信、網(wǎng)絡(luò)模塊及開(kāi)發(fā)工具
英文描述： Telecomm/Datacomm
中文描述： 電信/數(shù)據(jù)通信
文件頁(yè)數(shù)： 30/47頁(yè)
文件大?。?/td> 754K
代理商： GS9064
GENNUM CORPORATION
22208 - 0
30 of 47
G
3.10.2.1 Programmable Ancillary Data Detection
Although the GS9060 will detect all types of ancillary data
by default, it also allows the host interface to specifically
program up to five different ancillary data types for
detection. This is accomplished via the ANC_TYPE register
(Table 4).
For each data type to be detected, the host interface must
program the DID and/or SDID of the ancillary data type of
interest. The GS9060 will compare the received DID and/or
SDID with the programmed values and assert YANC and
CANC only if an exact match is found.
If any DID or SDID value is set to zero in the ANC_TYPE
register, no comparison or match will be made for that
value. For example, if the DID is programmed but the SDID
is set to zero, the device will detect all ancillary data types
matching the DID value, regardless of the SDID.
In the case where all five DID and SDID values are set to
zero, the GS9060 will detect all ancillary data types. This is
the default setting after device reset.
Where one or more, but less than five, DID and/or SDID
values have been programmed, then only those matching
ancillary data types will be detected and indicated.
NOTE 1: The GS9060 will always detect EDH ancillary data
packets for EDH error detection purposes, regardless of
which DID/SDID values have been programmed for
ancillary data indication, (see Section 3.10.5.2).
NOTE 2: See SMPTE 291M for a definition of ancillary data
terms.
TABLE 4 HOST INTERFACE DESCRIPTION FOR PROGRAMMABLE ANCILLARY DATA TYPE REGISTERS
REGISTER
NAME
BIT
NAME
DESCRIPTION
R/W
DEFAULT
ANC_TYPE1
Address: 05h
15-8
ANC_TYPE1[15:8]
Used to program the DID for ancillary data detection at
the YANC and CANC output
R/W
0
7-0
ANC_TYPE1[7:0]
Used to program the SDID for ancillary data detection at
the YANC and CANC output.
Should be set to zero if no SDID is present in the
ancillary data product to be detected.
R/W
0
ANC_TYPE2
Address: 06h
15-8
ANC_TYPE2[15:8]
Used to program the DID for ancillary data detection at
the YANC and CANC output
R/W
0
7-0
ANC_TYPE2[7:0]
Used to program the SDID for ancillary data detection at
the YANC and CANC output.
Should be set to zero if no SDID is present in the
ancillary data product to be detected.
R/W
0
ANC_TYPE3
Address: 07h
15-8
ANC_TYPE3[15:8]
Used to program the DID for ancillary data detection at
the YANC and CANC output
R/W
0
7-0
ANC_TYPE3[7:0]
Used to program the SDID for ancillary data detection at
the YANC and CANC output.
Should be set to zero if no SDID is present in the
ancillary data product to be detected.
R/W
0
ANC_TYPE4
Address: 08h
15-8
ANC_TYPE4[15:8]
Used to program the DID for ancillary data detection at
the YANC and CANC output
R/W
0
7-0
ANC_TYPE4[7:0]
Used to program the SDID for ancillary data detection at
the YANC and CANC output.
Should be set to zero if no SDID is present in the
ancillary data product to be detected.
R/W
0
ANC_TYPE5
Address: 09h
15-8
ANC_TYPE5[15:8]
Used to program the DID for ancillary data detection at
the YANC and CANC output
R/W
0
7-0
ANC_TYPE5[7:0]
Used to program the SDID for ancillary data detection at
the YANC and CANC output.
Should be set to zero if no SDID is present in the
ancillary data product to be detected.
R/W
0
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