
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
2000-2006 Genesys Logic Inc. - All rights reserved.
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2. Add a pull down resistor on GPIO12 will indicate ASIC to turn off lamp power
in power-on initial state. This behavior is independent to setting of GPOM12.
3. This pin can control bipolar motor driver IC (2916,6219,3955 or 3967) Vref for
controlling Imax current when GPOM12 is set to
‘
1
’
.
GPIO11: This pin can control bipolar motor driver IC (2916,6219,3955 or 3967) Vref for
controlling Imax current when GPOM11 is set to
‘
1
’
.
3 GPOCK4
0 Select pin62 as CCD_CK4X
1 Select CCD_CK4X as GPO33
2 GPOCP
0 Select this pin68 as CCD_CPX.
1 CCD_CPX as GPO32.
1 GPOLEDB
0 Select this pin as LED_B for CIS.
1 Select LED_B as GPO28.
0 GPOADF
0 Select normal function for GPIO6 and GPO28.
1 Select GPIO6 as motor STEP output of 3967 and GPO28(LED_B) as DIR
output of 3967.
Offset 6Ch
……
..
……
..
………………
..
………
..
…
.
………
..
…
.
………
..
…
..
…
. Default value = 8
’
h00
GPIO16
R/W
GPIO15
R/W
GPIO14
R/W
GPIO13
R/W
GPIO12
R/W
GPIO11
R/W
GPIO10
R/W
GPIO9
R/W
7-0 GPIO[16:9]
GPIO16~9 input/output ports
Offset 6Dh
……
..
……
..
………………
..
………
..
…
.
………
..
…
.
………
..
…
..
…
. Default value = 8
’
h00
GPIO8
R/W
GPIO7
R/W
GPIO6
R/W
GPIO5
R/W
GPIO4
R/W
GPIO3
R/W
GPIO2
R/W
GPIO1
R/W
7-0 GPIO[8:1]
GPIO8~1 input/output ports
Offset 6Eh
……
..
……
..
………………
..
………
..
…
.
………
..
…
.
………
..
…
..
…
. Default value = 8
’
h00
GPOE16
R/W
GPOE15
R/W
GPOE14
R/W
GPOE13
R/W
GPOE12
R/W
GPOE11
R/W
GPOE10
R/W
GPOE9
R/W
7-0 GPOE[16:9]
Select directions of GPIO16~9 ports. They can be set to different values
independently.
0 Set as input port.
1 Set as output port.
Offset 6Fh
……
..
……
..
………………
..
………
..
…
.
………
..
…
.
………
..
…
..
…
. Default value = 8
’
h00
GPOE8
R/W
GPOE7
R/W
GPOE6
R/W
GPOE5
R/W
GPOE4
R/W
GPOE3
R/W
GPOE2
R/W
GPOE1
R/W
7-0 GPOE[8:1]
Select directions of GPIO8~1 ports. They can be set to different values
independently.
0 Set as input port.
1 Set as output port.