gl846 Genesys Logic, gl846 Datasheet - Page 48

• 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 5Dh ……..……..………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 5Eh ……..……..………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 5Fh ……..………………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 60h ……..………………………..………..….………..….…..…..…..…. Default value = 8’h20
5-4 CDSREF [1:0] Front-end CDS reference for line rate scanning type.
3-0 RLC [3:0]
7-0 HISPD [7:0]
7-5 DECSEL [2:0] Deceleration steps number after touching home sensor.
4-0 STOPTIM [4:0] Stop time between forward and backward direction in backtracking.
7-0
7-5
FMOVDEC7 FMOVDEC6 FMOVDEC5 FMOVDEC4 FMOVDEC3 FMOVDEC2 FMOVDEC1 FMOVDEC0
STEPSEL2 STEPSEL1 STEPSEL0
DECSEL2
6 RLCSEL
Note: In ASIC simulation process, STOPTIM has to be set to tgtime=6,7.
HISPD7
R/W
R/W
R/W
R/W
FMOVDEC [7:0]
STEPSEL [2:0]
It cannot be programmed to logic zero.
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
DECSEL1
HISPD6
R/W
R/W
R/W
R/W
1 ADC clock is reversed.
0 Do not select.
1 Select reset level clamp on a pixel-by-pixel basis.
Front-end RLC for line rate scanning type.
To change of the speed of motor during moving
Note: It cannot be programmed to logic zero.
000 1 steps deceleration
001 2 steps deceleration
010 4 steps deceleration
011 8 steps deceleration
100 16 steps deceleration
101 32 steps deceleration
110 64 steps deceleration
111 128 steps deceleration
Deceleration steps in table 5 for auto-go-home.
Note: 1.It cannot be programmed to logic zero.
For type selection of table one, table two and table three in scanning mode.
(1) For bipolar motors:
DECSEL0 STOPTIM4 STOPTIM3 STOPTIM2 STOPTIM1 STOPTIM0
HISPD5
011 Eighth step (for 3955, 3967).
100 Sixteenth step (for 3972)
000 Full step (for 1939, 1940, 2916, 6219, 3955, 3967).
001 Half step (for 1939, 1940, 2916, 6219, 3955, 3967).
010 Quarter step (for 2916, 6219, 3955, 3967).
2.It can be multiplied by 2 *
R/W
R/W
R/W
R/W
Z1MOD20 Z1MOD19 Z1MOD18 Z1MOD17 Z1MOD16
HISPD4
R/W
R/W
R/W
R/W
HISPD3
R/W
R/W
R/W
STEPTIM
R/W
HISPD2
R/W
R/W
R/W
R/W
HISPD1
R/W
R/W
R/W
R/W
HISPD0
Page 48
R/W
R/W
R/W
R/W