gl848 Genesys Logic, gl848 Datasheet - Page 60

• Manufacturer Part Number: gl848
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf & Bus Power
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset ACh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
7-6
Offset ADh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
Offset AEh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
7-6
Offset B8h ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
3
2
Offset BAh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
5-4 VRMOVE [3:2] Vref of the motor driver IC for fast forward moving
3-2 VRBACK [3:2]
4-0 SWSH [4:0]
5-0
6-4 MULSTOP [2:0] Select stop time of motor start/stop. The stop time = STOPTIM * 2
VRHOME3 VRHOME2 VRMOVE3 VRMOVE2
CCD_OUT
2 TB3TB1
1 TB5TB2
3 NODECEL
0 FIX16CLK
R/W
R/W
VRHOME [3:2] Vref of the motor driver IC for go-home moving
RESERVED
STOPPWM
SW2_EN
SW2_SEL
X
X
X
X
X
GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
AV_EN
[5:0] Set the PWM control of motor driver IC during motor stopping.
R/W
R/W
X
X
X
X
X
To set the distance from SW to TG for NEC/Toshiba CCD. The width is
-
Enable special CCD timing of CCD SW2 for special application
0 CCD SW2 and CCD SW5 timing control is based on internal CCD_CNX
1 CCD SW2 and CCD SW5 timing control is based on internal SH_CNT
SWSH[4:2]*2
0 Motor decelate when carriage touch home sensor
1 Motor doesn’t decelerate when carriage touch home sensor
0 Don’t replace.
1 Use table 1 of motor table to replace table 3.
1 Use table 2 of motor table to replace table 5.
To enable 16 system clocks/pixel recover function
Vref of the motor driver IC for backward moving when the image buffer is full
0 Don’t replace.
counter of ASIC
counter of ASIC
STOPPWM5 STOPPWM4 STOPPWM3 STOPPWM2 STOPPWM1 STOPPWM0
R/W
R/W
R/W
X
X
X
X
TGSTIME
SWSH4
R/W
R/W
R/W
X
X
X
VRBACK3
SW2_EN
SWSH3
R/W
R/W
R/W
R/W
X
SW2_SEL
VRBACK2
SWSH2
R/W
R/W
R/W
R/W
X
VRSCAN3
SWSH1
R/W
R/W
R/W
X
X
X
MULSTOP
VRSCAN2
SWSH0
Page 60
R/W
R/W
R/W
X
X
X