參數(shù)資料
型號(hào)： GL843
廠商： Genesys Logic, Inc.
英文描述： High Speed USB 2.0 With ADF 2-in-1 Scanner Controller
中文描述： 高速USB 2.0同盟2合1掃描儀控制器
文件頁數(shù)： 69/84頁
文件大?。?/td> 837K
代理商： GL843
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
2000-2006 Genesys Logic Inc. - All rights reserved.
Page 69
CHAPTER 6 FUNCTIONAL DESCRIPTION
1 System Clock
Internal PLL.
A. Input: 12MHz crystal.
B. Output: 12, 24, 30, 40, 48 or 60 MHz to scanner controller system.
2 Pixel Clock
A. Normal mode
Scan mode 0:
B. Scan mode 7
C. Scan mode 6
Note: Chunky Color is R1G1B1, R2G2B2, R3G3B3,
………
(three-line-in or pixel rate).
Planar Color is R1, R2, R3,
…
..; G1, G2, G3,
……
.; B1, B2, B3,
……
..(one-line-in or line rate).
CCD: Chunky color or planar color.
CIS: Planar color.
3 Scan Speed
A. System clock = 30MHz:
a. Normal Mode: Chunky color, fine gray or fine line art scan.
(scan mode 0) 12x33.333ns/pixel = 0.4us/pixel.
(1). 600dpi: 2.160ms/line, 15.163s/page.
(2). 1200dpi: 4.320ms/line, 60.653s/page.
B. System clock = 40MHz:
a. Normal Mode: Chunky color, fine gray or fine line art scan.
12x25ns/pixel = 0.3us/pixel
(1). 600dpi: 1.620ms/line, 11.372s/page.
(2). 1200dpi: 3.240ms/line, 45.488s/page.
4 Fast Scan for Low Resolutions
Designers are allowed to increase CCD clock rates to up scanning speed in low resolutions,
such as 2, 4, 8,
…
times..
5 Scanning Type
GL843 supports three-line-in (parallel) for CCD and one-line-in for CIS.
A. CCD Type
CCD Exposure control
There are three modes to control CCD TG by TGMODE control bits.
Mode 0: single exposure time for R, G and B channels.
Mode 1, 2: different exposure times for R, G and B channels .
a. 12 system clock/pixel.
b. Chunky color (three line in), gray or art scanning for CCD.
c. Planar color scan (one line in) or Monochrome scanning for CIS.
a. 16 system clock/pixel.
b. Chunky color (three line in), gray or line-art scanning for CCD.
c. Planar color scan (one line in) or Monochrome scanning for CIS.
a. 18 system clock/pixel
b. Chunky color (three line in), gray or art scanning for CCD.
c. Planar color scan (one line in) or Monochrome scan for CIS.
相關(guān)PDF資料
PDF描述
GL850A USB 2.0 Low-Power HUB Controller
GL850A-MNGXX USB 2.0 Low-Power HUB Controller
GL850A-MNNXX USB 2.0 Low-Power HUB Controller
GL850A-MSGXX USB 2.0 Low-Power HUB Controller
GL850A-MSNXX USB 2.0 Low-Power HUB Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GL848 制造商:GENESYS 制造商全稱:GENESYS 功能描述:High Speed USB 2.0
GL850 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB 2.0 4-PORT HUB Controller
GL850A 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 Low-Power HUB Controller
GL850A-MNGXX 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 Low-Power HUB Controller
GL850A-MNNXX 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 Low-Power HUB Controller
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