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Teilenummer | GL842 |
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Beschreibung | USB 2.0 2-in-1 Scanner Controller | |
Hersteller | GENESYS LOGIC | |
Logo | ||
Gesamt 30 Seiten Xu062 f
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Genesys Logic, Inc.
GL842
USB 2.0 2-in-1
Scanner Controller
Datasheet
Revision 1.00
Nov. 14, 2003
GL842 USB 2.0 2-in-1 Scanner Controller
CHAPTER 1 GERERAL DESCRIPTION
Genesys Logic's single-chip GL842 (GeneScanTM series) is a high speed, high performance, low cost and rich
scalability controller for scanner. It successfully integrates scanner function ASIC and USB 2.0 interface
controller into one single-chip.
With its high performance design architecture, GL842 is not only ready for supporting CIS or CCD image
sensors (600dpi,1200dpi or 2400dpi resolution) that are used in flatbed or transparency scanners, but is able to
co-work with uni-polar or bi-polar stepping motors. Advanced features of GL842 include five motor
acceleration/ deceleration curve tables for high speed motor moving.
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Page 6
6 Page GL842 USB 2.0 2-in-1 Scanner Controller
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Pin Name
TSTSEL[1:0]
MTR_SEL[1:0]
X1
X2
EXTRST_
Pin#
116,115
28,27
3
Miscellaneous
Type
ASIC I/O
Cell
Description
I
(pd)
hbd16dhk To select mode: Normal mode=0
I
(pd)
MTR_SEL[1:0]=10 select Bi_polar 3955
hbd16dhk MTR_SEL[1:0]=01 select Bi_polar 2916 OR 6219
MTR_SEL[1:0]=00 select Uni_polar 2003
I - Clock input for crystal (12MHz)
2 I/O - Clock output for crystal
117 I Hbd8rteu Hardware reset input
Pin Name
NC or DGND
RPU
DPF
DPH
DMF
DMH
RREF
USB Interface
Pin#
Type
ASIC I/O
Cell
Description
118 P
- NC or USB shield ground
121 -
- 3.3V Pull up control for DPF
123 I/O
- Positive USB differential data (Full Speed)
124 I/O
- Positive USB differential data (High Speed)
125 I/O
- Negative USB Differential Data (Full Speed)
126 I/O
- Negative USB Differential Data (High Speed)
128 -
- 510 Ω reference resistor input
Pin Name
AVDD, AVCC1
Pin#
122,1
Power / Ground
Type
ASIC I/O
Cell
Description
P - Analog power input for USB2.0 transceiver 3.3V
AGND, AGND1 127,4 P
- Analog ground input for USB2.0 transceiver
DVCC0, DVCC1 119,5 P
- Digital power input for USB2.0 controller 3.3V
DGND0, DGND1 120,6
VccCore1~4
GndCore1~4,
Gndio1~6
21,52,82,
113
22,53,83,
114,26,49,
64,75,91,
104
Vccio1
25
P
P
P
P
- Digital ground input for USB2.0 controller.
- Digital power input for scanner controller logic core 3.3V
- Digital ground input for scanner controller.
- For Pin7~Pin39 3.3V or 5V
Vccio2
48 P
- For Pin40~Pin58 3.3V or 5V
Vccio3
63 P
- For Pin59~Pin66 3.3V or 5V
Vccio4~6
74,90,103 P
- For Pin67~116 3.3V or 5V
Note: hbd16* is for 6mA; hbd8* is for 8mA.
Genesys Logic Inc.—All rights reserved.
Page 12
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ GL842 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
GL842 | USB 2.0 2-in-1 Scanner Controller | GENESYS LOGIC |
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