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參數(shù)資料
| 型號： | KS9284 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Digital Signal Processor(數(shù)字信號處理器) |
| 中文描述： | 數(shù)字信號處理器（數(shù)字信號處理器） |
| 文件頁數(shù)： | 15/25頁 |
| 文件大?。?/td> | 112K |
| 代理商： | KS9284 |
KS9284
DIGITAL SIGNAL PROCESSOR
In these cases, we need to protect or insert the signal.
The window is made by using the WSEL to protect the frame sync.
If the frame sync is inputted to window, it is true data and if isn't inputted, it is ignored.
The width of window is determined by WSEL of CNTL-S register.
If the frame sync is not detected in the frame sync protection window, one sync which made by internal counter block,
is inserted sequencely.
When the appointed number of frame is achieved by FSEM, FSEL of CNTL-S register, ULKFS becomes
“L” and frame sync protection window is ignored. The frame sync is received absolute at that time. When the frame sync is
received, the ULKFS signal becomes “H” and the frame sync window is received.
3 SUBCODE BLOCK
The subcode sync signal (that is S0, S1) is detected in the subcode sync block. After S0 is detected, S1 is detected
after one frame.
At that time, the S0 + S1 signal is outputted to S0S1 terminal, and the S0S1 signal is outputted to SBDT terminal when the
S0S1 signal is "H".
The subcode data among the data inputted to EFM terminal, is demodulated to 8-bit subcode data (P, Q, R, S, T, U, V, W).
It is synchronized with PBFR signal and it is outputted to SBDT by SBCK clock.
Among the eight subcode data, only Q data is selected and loaded to the eighty shift register by PBFR signal.
The result of checking the CRC (Cycle Redundancy Check) of loading data is synchronized with S0S1 positive edge and
outputted to SQOK terminal.
If the result of checking is error, "L" is outputted to SQOK terminal and if it is true, "H" is outputted to.
And if the CRCQ of CNTL-Z mode is "H", the result of CRC check is outputted to SQDT terminal during from S0S1, "H" to
SQCK negative edge.
LKFS
ULKFS
COMMENT
1
1
Corresponding with playback frame sync and generated frame sync
x
Out of corresponding with playback frame sync generated frame sync, but PBFR sync is de
tected in the window selected by WSEL.
y
Out of corresponding with PBFR sync and XTFR sync, and sync is inserted because it isn’t
detected in the window selected by WSEL.
x
After insertion as many as the frame decided by FSEM and FSEL of CNTL-S register as frame
sync isn’t detected in the window.
y
In case that the PBFR sync is not detected continually after
x
.
0
1
0
0
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