gl846 Genesys Logic, gl846 Datasheet - Page 53

• 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 6Ch ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
Offset 6Dh ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
Offset 6Eh ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
Offset 6Fh ……..……..………………..………..….………..….………..…..…. Default value = 8’h00
7-0 GPIO [16:9]
7-0 GPIO [8:1]
7-0 GPOE [16:9]
7-0 GPOE [8:1]
5 GPOM12
4 GPOM11
3 GPOCK4
2 GPOCP
1 GPOLEDB
0 GPOADF
GPOE16
GPIO16
GPOE8
GPIO8
R/W
R/W
R/W
R/W
Note: GPIO12: 1. Add a pull up resistor on GPIO12 will indicate ASIC to turn on lamp power in
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
GPIO11: This pin can control bipolar motor driver IC (2916,6219,3955 or 3967) Vref for
GPOE15
GPIO15
GPOE7
GPIO7
R/W
R/W
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 (2916,6219,3955 or 3967) Vref for
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
Select directions of GPIO16~9 ports. They can be set to different values
independently.
0 Set as input port.
1 Set as output port.
Select directions of GPIO8~1 ports. They can be set to different values
in power-on initial state. This behavior is independent to setting of GPOM12.
0 Select this pin68 as CCD_CPX.
output of 3967.
GPOE14
GPIO14
GPIO8~1 input/output ports
GPOE6
GPIO6
R/W
R/W
R/W
R/W
GPOE13
GPIO13
GPOE5
GPIO5
R/W
R/W
R/W
R/W
GPOE12
GPIO12
GPOE4
GPIO4
R/W
R/W
R/W
R/W
GPOE11
GPIO11
GPOE3
GPIO3
R/W
R/W
R/W
R/W
GPOE10
GPIO10
GPOE2
GPIO2
R/W
R/W
R/W
R/W
GPOE9
GPOE1
GPIO9
GPIO1
Page 53
R/W
R/W
R/W
R/W