gl848 Genesys Logic, gl848 Datasheet - Page 48

• 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 6Bh ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
Offset 6Ch ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
Offset 6Dh ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
7-0 GPIO [16:9]
MULTFILM
7 MULTFILM
6 GPOM 13
5 GPOM12
4 GPOM11
3 GPOCK4
2 GPOCP
1 GPOLEDB
0 GPOADF
GPIO16
R/W
R/W
Note: GPIO12: 1. Add a pull up resistor on GPIO12 will indicate ASIC to turn on lamp power in
GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
GPIO11: This pin can control bipolar motor driver IC (2916,6219 or 3967) Vref for
GPOM13
GPIO15
R/W
R/W
2. Add a pull down resistor on GPIO12 will indicate ASIC to turn off lamp power
controlling Imax current when GPOM11 is set to ‘1’.
3. This pin can control bipolar motor driver IC (2916,6219 or 3967) Vref for
Reg5F
Reg5E[7:5]
0 Disable multi-film scanning mode.
1 Enable multi-film scanning mode. Motor power will not be turned off in this
1 Select GPIO13 as V-ref control of bipolar motor driver IC to control Imax.
0 Select GPIO12 as general purpose I/O.
1 Select GPIO12 as V-ref control of bipolar motor driver IC to control Imax.
0 Select GPIO11 as general purpose I/O..
1 Select GPIO11 as V-ref control of bipolar motor driver IC to control Imax.
power-on initial state. This behavior is independent to setting of GPOM12.
controlling Imax current when GPOM12 is set to ‘1’.
0 Select pin62 as CCD_CK4X
1 Select CCD_CK4X as GPO33
1 CCD_CPX as GPO32.
0 Select this pin as LED_B for CIS.
1 Select LED_B as GPO28.
0 Select normal function for GPIO6 and GPO28.
1 Select GPIO6 as motor STEP output of 3967 and GPO28(LED_B) as DIR
GPIO16~9 input/output ports
0 Select GPIO13 as general purpose I/O.
in power-on initial state. This behavior is independent to setting of GPOM12.
0 Select this pin68 as CCD_CPX.
Reg21
mode.
Reg3D,3E,3F
output of 3967.
GPOM12
GPIO14
R/W
R/W
Go home
GPOM11
GPIO13
R/W
R/W
GPOCK4
GPIO12
Reg25,26,27
R/W
R/W
Reg6A
GPIO11
GPOCP
R/W
R/W
Reg69
GPOLEDB
GPIO10
R/W
R/W
Length
GPOADF
GPIO9
Page 48
R/W
R/W