GL843 datasheet(31/84 Pages) GENESYS

31 / 84 page

GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x

Page 31

3 CK4INV

Don’t reverse.

To reverse CCD Clock4.

2 CK3INV

Don’t reverse.

To reverse CCD Clock 3.

1 LINECLP

To select CCD pixel clamping.

To select CCD line clamping.

0 RESERVED

Offset 1Bh ……..……………………………………..…………..……..……..…. Default value = 8’h00

GRAYSET CHANSEL

BGRENB

ICGENB

ICGDLY3

ICGDLY2

ICGDLY1

ICGDLY0

R/W

GRAYSET

Select single channel output.

Select two channel output.

CHANSEL

Fast true gray latch is 2 and 3 position.

Fast true gray latch is 1 and 2 position.

BGRENB

The order is R-G-B.

The order of latching A/D data is B-G-R.

4 ICGENB

To disable ICG control.

To enable CCD shutter control signal ICG.

3-0 ICGDLY[3:0]

CCD ICG delay for rising/falling edge.

Offset 1Ch ……..……………………………………..…………..…....………. Default value = 8’h00

CK4MTGL CK3MTGL CK1MTGL

CKAREA

MTLWD

TGTIME2

TGTIME1

TGTIME0

R/W

7 CK4MTGL

Disable toggle function in CCD clock 4.

Enable toggle function in CCD clock 4.

6 CK3MTGL

Disable toggle function in CCD clock 3.

Enable toggle function in CCD clock 3.

5 CK1MTGL

Disable toggle function in CCD clock 1 & 2.

Enable toggle function in CCD clock 1 &2.

4 CKAREA

This function is disabled.

CCD clock speed depends on CKSEL in scan area and DCKSEL in non-scan area.

3 MTLWD

Set the watchdog time-out as WDTIME[3:0].

Set the watchdog time-out as WDTIME[3:0] * 2.

2-0 TGTIME[2:0]

CCD line period selection.

000

1*LPERIOD(Reg38,Reg39)

001

2*LPERIOD

010

4*LPERIOD

011

8*LPERIOD

100

16*LPERIOD

101

32*LPERIOD

110

Reserved.

111

Reserved.

GL843 Datasheet(PDF) 31 Page - GENESYS LOGIC

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