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參數資料
| 型號： | W9967CF |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 消費家電 |
| 英文描述： | JPEG USB Camera Chip(運用JPEG壓縮技術和通用串行總線結構技術的照相電路數字處理芯片的攝像照相機接口控制器) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-128 |
| 文件頁數： | 19/74頁 |
| 文件大小： | 762K |
| 代理商： | W9967CF |
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W9967CF
Publication Release Date: May 1999
- 19 - Revision A4
7 FUNCTIONAL DESCRIPTION
7.1 Video Input Interface
Video input data is cropped, down-scaled, and filtered in the video pre-processing (VPRE) block, then
is stored into the DRAM as captured video for the following JPEG compression and transfer.
7.1.1 Camera Control Serial Bus
A dedicated programmable serial bus is supported for camera control. The serial bus includes SCLK,
SDATA, and SDE#/SDS signals. During serial bus read, these signals are controlled by the host via
bits 4-0 of the Serial Bus Control register (CR01_4-0).
There are two serial bus write modes which are controlled by bit 5 of the Serial Bus Control register
(CR01_5).: normal serial bus write mode (CR01_5 = 0) and fast serial bus write mode (CR01_5 = 1).
Normal serial bus write mode (CR01_5 = 0): SDATA and SCLK signals are output from CR01_1-0
directly.
Fast serial bus write mode (CR01_5 = 1): SDATA and SCLK signals are output from CR06-CR09 in
about 400 Khz bit frequency.
7.1.2 Input Video Data Format
The W9967CF accepts video data in YUV 4:2:2 format through a 16-bit (Y[7:0] and UV[7:0]) or 8-bit
(Y[7:0]) data bus. Many YUV ordering formats are supported which are selected by bits 9-8 of the
Video Capture Control register (CR26) as shown in Figure 7.1. Video data can be latched by the
W9967CF by using either rising-edge or falling-edge of the VICLK clock signal. In the 8-bit modes the
VICLK frequency is twice the pixel rate, only Y[7:0] pins are used for video data input and UV[7:0]
pins are not used.
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相關代理商/技術參數 |
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|---|---|
| W99681CF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:JPEG USB Dual Mode Camera Chip |
| W99685 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W99685BS | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SYSTEM CAMERA DEVICE |
| W99685FS | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SYSTEM CAMERA DEVICE |
| W9968CF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Camera |
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