GL843 datasheet(27/84 Pages) GENESYS

27 / 84 page

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

Page 27

6 DOCCMD

To control document when scanner is working on ADF.

5 CCDCMD

To control CCD when abnormal status happens.

FULLSTP

To reset steps type to full step.

3 SEND

To send the RS232 data.

2 CLRMCNT

To clear FEDCNT(Reg48,Reg49,Reg4A) counter information.

1 CLRDOCJM

Don’t clear document jam message for ADF module.

To clear document jam message for ADF module.

0 CLRLNCNT

Don’t clear SCANCNT.

To clear SCANCNT (Reg4B,Reg4C,Reg4D).

Note: 1.For each scanning, designers must clear SCANCNT before starting process.

2.Other bits in this register are not defined.

Offset 0Eh

SCANRESET

Command: Scanner software reset.

It can initiate AISC system including lamp and motor, control registers, internal circuit;

but n ot in cluding tables in DRAM, like gamma table, sh adin g table an d

acceleration/deceleration table.

Note: In normal condition, it is unnecessary to reset scanner unless the scanner is out of control.

Offset 0Fh

MOVE

Command: Motor moving.

Start motor forward/backward moving.

Offset 10h …………………………………………..…………..……..…………. Default value = 8’h00

EXPR15

EXPR14

EXPR13

EXPR12

EXPR11

EXPR10

EXPR9

EXPR8

R/W

7-0 EXPR[15:8]

Exposure time setting (in pixel time) for Red-LED of CIS or Red channel of CCD.

Note: It cannot be programmed to logic zero.

Offset 11h …………………………………………..…………..……..…………. Default value = 8’h00

EXPR7

EXPR6

EXPR5

EXPR4

EXPR3

EXPR2

EXPR1

EXPR0

R/W

7-0 EXPR[7:0]

Exposure time setting (in pixel time) for Red-LED of CIS or Red channel of CCD.

Note: It cannot be programmed to logic zero.

Offset 12h …………………………………………..…………..……..…………. Default value = 8’h00

EXPG15

EXPG14

EXPG13

EXPG12

EXPG11

EXPG10

EXPG9

EXPG8

R/W

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