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參數(shù)資料
| 型號： | EVAL-ADV7189EBM |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat SDTV Video Decoder |
| 中文描述： | 標清多格式視頻解碼器 |
| 文件頁數(shù)： | 19/104頁 |
| 文件大?。?/td> | 890K |
| 代理商： | EVAL-ADV7189EBM |
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ADV7189
GLOBAL STATUS REGISTERS
There are four registers that provide summary information
about the video decoder. The IDENT register allows the user to
identify the revision code of the ADV7189. The other three
registers contain status bits from the SDP.
Rev. A | Page 19 of 104
IDENTIFICATION
IDENT[7:0] Address 0x11, [7:0]
Provides identification of the revision of the ADV7189. Please
review the list of IDENT code readback values for the various
versions shown in Table 25.
Table 25. IDENT Function
IDENT[7:0]
Description
0x0F or 0x10
ADV7189-FT
0x11
ADV7189 (Version 2)
STATUS 1
STATUS_1[7:0] Address 0x10, [7:0]
This read-only register provides information about the internal
status of the ADV7189.
Please see CIL[2:0] Count Into Lock (SDP), Address 0x51, [2:0]
and COL[2:0] Count Out of Lock (SDP), Address 0x51, [5:3] for
information on the timing.
Depending on the setting of the FSCLE bit, the Status[0] and
Status[1] are based solely on horizontal timing info or on the
horizontal timing and lock status of the color subcarrier. See the
FSCLE Fsc Lock Enable (SDP), Address 0x51, [7] section.
SDP Autodetection Result
AD_RESULT[2:0] Address 0x10, [6:4]
The AD_RESULT[2:0] bits report back on the findings from the
SDP autodetection block. Consult the SDP General Setup sec-
tion for more information on enabling the autodetection block,
and the Autodetection of SDP Modes section to find out how to
configure it.
Table 26. AD_RESULT Function
AD_RESULT[2:0]
Description
000
NTSM-MJ
001
NTSC-443
010
PAL-M
011
PAL-60
100
PAL-BGHID
101
SECAM
110
PAL-Combination N
111
SECAM 525
Table 27. STATUS 1 Function
STATUS 1 [7:0]
0
1
2
3
4
5
6
7
Bit Name
IN_LOCK
LOST_LOCK
FSC_LOCK
FOLLOW_PW
AD_RESULT.0
AD_RESULT.1
AD_RESULT.2
COL_KILL
Block
SDP
SDP
SDP
SDP
SDP
SDP
SDP
SDP
Description
In lock (right now).
Lost lock (since last read of this register).
Fsc locked (right now).
AGC follows peak white algorithm.
Result of SDP autodetection.
Result of SDP autodetection.
Result of SDP autodetection.
Color kill active.
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