參數(shù)資料
型號: SAA8116
廠商: NXP Semiconductors N.V.
英文描述: Digital PC-camera signal processor including microcontroller and USB interface
中文描述: 數(shù)碼電腦攝像頭信號處理器,包括微控制器和USB接口
文件頁數(shù): 38/60頁
文件大?。?/td> 237K
代理商: SAA8116
2001 May 04
38
Philips Semiconductors
Product specification
Digital PC-camera signal processor including
microcontroller and USB interface
SAA8116
Table 40
Register VFC_CONTROL_1 (address: 0x74H)
BIT
PARAMETER
7
6
5
4
3
2
1
0
Q_TABLE_SELECT: select quantization table for the compression engine
compression ratio = 2 (raw mode table) (by default)
compression ratio = 3
compression ratio = 4
compression ratio = 5
compression ratio = 6; with one bit shift
compression ratio = 7; with one bit shift
compression ratio = 7.5; with one bit shift
compression ratio = 8; with one bit shift
LDC: length of DC coefficient used in the compression engine
6 bits
7 bits
8 bits
undefined
VOF: select video output format
SIF compressed (by default)
SIF uncompressed
QSIF compressed
QSIF uncompressed
VGA compressed
VGA raw compressed
undefined
undefined
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
0
1
1
0
1
0
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
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