gl846 Genesys Logic, gl846 Datasheet - Page 41

• Manufacturer Part Number: gl846
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 37h …….……..……………………..………..….………..….…..…….…. Default value = 8’h00
Offset 38h …….……..……………………..………..….………..….……..……. Default value = 8’h2A
Offset 39h ……….…..……………………..………..….………..………………. Default value = 8’h30
Offset 3Ah
Offset 3Bh
Offset 3Dh ……..……..…………………..………..….………..….…..…….…. Default value = 8’h00
7-0 MAXWD [9:2] Maximum word size per line for ASIC estimation. The unit is 4 words.
LPERIOD15 LPERIOD14 LPERIOD13 LPERIOD12 LPERIOD11 LPERIOD10
7-0 LPERIOD [15:8] Line period (or exposure time) for CCD or CIS.
7-0 LPERIOD [7:0] Line period (or exposure time) for CCD or CIS.
7-1 RESERVED
FEWRDATA7 FEWRDATA6 FEWRDATA5 FEWRDATA4 FEWRDATA3 FEWRDATA2 FEWRDATA1 FEWRDATA0
7-0
7-4 RESERVED
3-0 FEEDL [19:16] Steps number of motor moving.
LPERIOD7 LPERIOD6 LPERIOD5 LPERIOD4 LPERIOD3 LPERIOD2 LPERIOD1 LPERIOD0
MAXWD9 MAXWD8 MAXWD7 MAXWD6 MAXWD5 MAXWD4 MAXWD3 MAXWD2
0 FEWRDATA [8] This port is for designers to write control register of front-end.
R/W
R/W
R/W
FEWRDATA [7:0]
W
X
X
X
X
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
R/W
R/W
R/W
W
X
X
X
X
If available buffer size < MAXWD, then “buffer full” state will be set. The
scanner execute backtracking.
If available buffer size < MAXWD, then “buffer full” state will be set. The
scanner execute backtracking.
Note: It cannot be programmed to logic zero.
Note: It cannot be programmed to logic zero.
-
This port is for designers to write control register of front-end.
-
Unit : pixel count
Unit : pixel count
R/W
R/W
R/W
W
X
X
X
X
R/W
R/W
R/W
W
X
X
X
X
FEEDL19
R/W
R/W
R/W
R/W
W
X
X
FEEDL18
R/W
R/W
R/W
R/W
W
X
X
LPERIOD9 LPERIOD8
FEEDL17
R/W
R/W
R/W
R/W
W
X
X
FEWRDATA8
FEEDL16
Page 41
R/W
R/W
R/W
R/W
W
W