GL841 USB 2.0 2-in-1 Scanner Controller
Genesys Logic, Inc.
GL841
High Speed USB 2.0
Two-in-one Scanner Controller
SPECIFICATION Ver. 1.7
Aug. 14, 2002
Genesys Logic, Inc.
10F, No.11, Ln. 155, Sec. 3, Peishen Rd., Shenkeng, Taipei, Taiwan
Tel: 886-2-2664-6655
Fax: 886-2-2664-5757
http://www.genesyslogic.com
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
INDEX
1
GENERAL DESCRIPTION................................................................................................................ 3
2
FEATURES........................................................................................................................................... 3
3
SYSTEM BLOCK DIAGRAM ........................................................................................................... 4
4
FUNCTION BLOCK DIAGRAM....................................................................................................... 6
5
HARDWARE DESCRIPTION ........................................................................................................... 7
6
Application Description ..................................................................................................................... 14
7
COMMAND SET DESCRIPTION................................................................................................... 24
8
Package................................................................................................................................................ 49
9
Revision History.................................................................................................................................. 50
2
Version 1.6
GL841 USB 2.0 2-in-1 Scanner Controller
1
GENERAL DESCRIPTION
Genesys Logic's single-chip GL841 (GeneScan™ 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, GL841 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 cowork with uni-polar or bi-polar stepping motors. Advanced features of GL841
include five motor acceleration/ deceleration curve tables for high speed motor
moving.
2
FEATURES
Highly integrated scanner controller chip. (2-in-1; Scanner Controller and USB
2.0 Interface)
USB 2.0 High Speed (480Mbit) compliance. (USB 2.0 High Speed logo certified)
Design for sheetfed, flatbed and transparency scanner.
12 Mhz Low frequency clock input required for better EMI.
Flexible 3.3V/5V power selection for pad I/O.
Adjustable working speed for different usage.
Fast operation speed. (0.3us/pixel, in 40MHz working clock)
It costs only 12 seconds for 600dpi A4 size color scanning
Available sensor types: 600, 1200 and 2400dpi color CIS or CCD.
Support linear or stagger CCD , such as NEC , Toshiba or Sony CCD
Support 48-Bits color (16-Bits gray level ) scanning.
Support color, fine Gray, fast gray and fast B/W scan for CCD.
Support color,, gray, true gray and B/W scan for CIS.
Support three scanning types :pixel by pixel(pixel rate), line by line(line rate) and
RGB line by turns(line rate).
16 bits white/dark shading and 16-to-8 bits Gamma correction.
Support digital average and hardware deletion pixel function for speeding up low
resolution scan.
Support hardware deletion type for DPI function (2400 to 1 DPI ,1 DPI
decrement) .
3
Version 1.6
GL841 USB 2.0 2-in-1 Scanner Controller
Programmable threshold level for B/W.
Exposure time is adjustable (1 pixel time increment step).
Scan width (scan area) control for horizontal line( 1 pixel increment step).
Support 256K*16, 256K*16*2 and 1M*16 bits EDO-DRAM.
Support 5 acceleration/deceleration motor tables for detailed controllable high
speed motor moving.
Support controllableg bipolar motor in full, half and quarter steps moving.
Support controllable uni-polar motor in full and half steps moving.
Build-in PWM control phase for uni-polar motor.
Programmable dummy lines to resolve start/stop (discontinuous) problem.
Watch dog protect for lamp, motor and ASIC.
Lamp timeout (sleeping) control.
Support 16 GPIO pins and 2 GPO pins.
Output motor trigger signal under scanning for ADF.
2 Output ports for lamp(include flatbed and transparency with PWM) control.
Input port for home sensor.
Power on check status.
Support LED Blinking.
Support Back Scanning.
3
SYSTEM BLOCK DIAGRAM
A. USB 2.0 System Block Diagram
4
Version 1.6
GL841 USB 2.0 2-in-1 Scanner Controller
IO Device
GL841
Host
(USB2.0 Interface + Scanner ASIC
Motor Driver
Controller)
Two-In-One Controller
CCD/CIS
12 MHz
DRAM
5
AFE
Version 1.6
GL841 USB 2.0 2-in-1 Scanner Controller
4
FUNCTION BLOCK DIAGRAM
HOST
USB 2.0
EPP
Data
Data
Black &
CCD/CIS
CCD/
Controller
Circuit
Interface
Packing
White
control
CIS
Register Write
Gamma
A/D data
Front-
& Status read
Correcion
latch
End(16
Bits)
Motor
Motor
Driver
control
Scanner
Flow
DPI
Control
control
GPIO
I/O
control
12MHz
PLL
Clk-gen
watchdog
Motor
White
Dark
Average
Moving
Shading
Shading
Control
Table
process
process
Shading ,Image and Motor Table DRAM
(256K*16*1) , (256K*16*2) or (1M*16)
6
Version 1.6
GL841 USB 2.0 2-in-1 Scanner Controller
5
5.1
HARDWARE DESCRIPTION
Pins Assignment & Mode Definition:
ASIC I/O
Cell
SC+USB2.0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
TSTSEL[1:0]=
0
AVCC1
X2
X1
AGND1
DVCC1
DGND1
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
VccCore1
GndCore1
GPIO15
GPIO16
Vccio1
Gndio1
MTR_SEL0
MTR_SEL1
LAMP_SW
XPA_SW
LED_B
MT_PH0
MT_PH1
MT_PH2
MT_PH3
MT_PH4
MT_PH5
MT_PH6
MT_PH7
OP0
OP1
OP2
OP3
OP4
OP5
P
I/O
I
P
P
P
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
P
P
I/O
I
P
P
I
I
O
O
O
O
O
O
O
O
I/O
O
O
I
I
I
I
I
I
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
hbd16rsc
hbd16rsc
hbd16rsc
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
OP6
OP7
Vccio2
Gndio2
SDO
SDI
VccCore2
GndCore2
SCLK
SEN
BSMP
VSMP
MCLK
CCD_TGX
CCD_CK1X
CCD_CK3X
CCD_CPX
Vccio3
Gndio3
CCD_RSX
HOME
CCD_CK2X
CCD_CK4X
CCD_TGG
CCD_TGB
CASY
RASY
NOEY
Vccio4
Gndio4
NWEY
CASX
RASX
NOEX
NWEX
ABUS0
VccCore3
GndCore3
ABUS1
ABUS2
ABUS3
ABUS4
ABUS5
ABUS6
Vccio5
Gndio5
ABUS7
ABUS8
ABUS9
DBUS0
DBUS1
I
I
P
P
I
O
P
P
O
O
O
O
O
O
O
O
O
P
P
O
I
O
O
O
O
O
O
O
P
P
O
O
O
O
O
O
P
P
O
O
O
O
O
O
P
P
O
O
O
I/O
I/O
hbd16dhk
hbd16dhk
hbd16dhk
hbd16dhk
hbd16rsc
hbd16dhk
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16uhk
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16rsc
hbd16dhk
hbd16dhk
8
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
Note:
5.2
97 DBUS2
I/O hbd16dhk
98 DBUS3
I/O hbd16dhk
99 DBUS4
I/O hbd16dhk
100 DBUS5
I/O hbd16dhk
101 DBUS6
I/O hbd16dhk
102 DBUS7
I/O hbd16dhk
Vccio6
P
103
P
104 Gndio6
105 DBUS8
I/O hbd16dhk
106 DBUS9
I/O hbd16dhk
107 DBUS10
I/O hbd16dhk
108 DBUS11
I/O hbd16dhk
109 DBUS12
I/O hbd16dhk
110 DBUS13
I/O hbd16dhk
111 DBUS14
I/O hbd16dhk
112 DBUS15
I/O hbd16dhk
P
113 VccCore4
P
114 GndCore4
I
115 TSTSEL0
hbd16dhk
I
116 TSTSEL1
hbd16dhk
117 EXTRST_
I
hbd8rteu
118 SUSPND
O hbd8rted
P
119 DVCC0
P
120 DGND0
121 RPU
?
122 AVDD
P
123 DPF
I/O
124 DPH
I/O
125 DMF
I/O
126 DMH
I/O
P
127 AGND
128 RREF
?
hbd16dhk is internal pulled down ; hbd16uhk is internal pulled up ; hbd16* is 16mA ; hbd8* is for 8mA
Pin Descriptions :
Support IO Ports
GPIO1~16
B
General Purpose Input/ Output
MT_PH0~7
O
Bi-polar (3955):
MT_PH7=PHASE_A
MT_PH6=PHASE_B
MT_PH5=D2A
MT_PH4=D1A
MT_PH3=D0A
MT_PH2=D2B
MT_PH1=D1B
MT_PH0=D0B
Bi-polar (2916 or 6219): MT_PH5=PHASE1
MT_PH4=PHASE2
MT_PH3=I11
MT_PH2=I01
MT_PH1=I12
9
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
MT_PH0=I02
Uni-polar(2003)
: MT_PH3=PHASE A
MT_PH2=PHASE B
MT_PH1=PHASE /A
MT_PH0=PHASE /B
MOTORTGO(GPIO13)
O
Output motor trigger for ADF scanning or GPIO13.
HOME
I
Sense carriage home position
CCD/CIS Control Signals
CCD_CK1X
O
CCD Shift register clock1 or CIS clock output
CCD_CK2X
O
CCD Shift register clock2 or CIS clock output
CCD_CPX
O
CCD Clamp gate clock or CIS clock output
CCD_RSX
O
CCD Reset gate clock or CIS clock output
CCD_TGX
O
CCD Transfer gate clock for R channel or CIS Line start pulse
CCD_TGG
O
CCD Transfer gate clock for G channel
CCD_TGB
O
CCD Transfer gate clock for B channel
CCD_CK3X
O
CCD Shift register clock3
CCD_CK4X
O
CCD Shift register clock4
LAMP_SW
O
Flatbed lamp power control or CIS Red LED array control
XPA_SW
O
Transparency lamp power control or CIS Green LED array control
LED_B
O
CIS Blue LED array control
FRONT-END
OP0~7
I
AFE digital data input.
SEN/SLOAD
O
Serial interface load pulse.
SCLK
O
Serial interface clock output.
SDI
O
Serial data output.
SDO
I
Serial data input.
BSMP/CDSCLK1
O
Wolfson type : Video sample synchronization pulse.
Analog Device : CDS Reference level sampling clock.
VSMP/CDSCLK2
O
Wolfson type : Video sample synchronization pulse.
Analog Device : CDS Data level sampling clock.
MCLK/ADCCLK
O
Wolfson type : Master clock.
Analog Device : A/D Converter sampling clock.
DRAM
DBUS0~15
B
DRAM data bus
ABUS0~9
O
DRAM address bus
RASX
O
DRAM RAS signal of first memory chip
CASX
O
DRAM CAS signal of first memory chip
NOEX
O
DRAM OE(output enable) signal of first memory chip
NWEX
O
DRAM WE signal of first memory chip
RASY
O
DRAM RAS signal of second memory chip
CASY
O
DRAM CAS signal of second memory chip
NOEY
O
DRAM OE(output enable) signal of second memory chip
NWEY
O
DRAM WE signal of second memory chip
Miscellaneous
10
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
TSTSEL0
I
To select mode: Normal mode = 00
TSTSEL1
MTR_SEL1
I
MTR_SEL0
MTR_SEL[1:0]=10 select Bi_polar 3955
MTR_SEL[1:0]=01 select Bi_polar 2916 OR 6219
MTR_SEL[1:0]=00 select Uni_polar 2003
IX1
I
Clock input for crystal (12MHz)
IOX2
O
Clock output for crystal
EXTRST_
I
Hardware reset input
POWER
AVDD,AVCC1
P
Analog power input for USB2.0 transceiver 3.3V
AGND,AGND1
P
Analog ground input for USB2.0 transceiver
DVCC0,DVCC1
P
Digital power input for USB2.0 controller 3.3V
DGND0,DGND1
P
Digital ground input for USB2.0 controller.
VccCore1,VccCore2,VccCore3,
P
Digital power input for scanner controller logic core 3.3V
P
Digital ground input for scanner controller.
VccIO1
P
for PIN7~PIN39 3.3V or 5V
VccIO2
P
For PIN40~PIN58 3.3V or 5V
VccIO3
P
for PIN59~PIN66 3.3V or 5V
VccCore4,DVCC1
GndCore1,GndCore2,GndCore3,
GndCore4,DGND1,DGND0
GndIO1,GndIO2,GndIO3,GndIO4,
GndIO5,GndIO6
VccIO4, VccIO5,VccIO6
P
for PIN67~116 3.3V or 5V
VCC0
P
for USB2.0 Pads 3.3V
USB Interface
SUSPND
O
USB suspend indicator
RPU
-
3.3V Pull up control for DPF
DPF
B
Positive USB differential data (Full Speed)
DPH
B
Positive USB differential data (High Speed)
DMF
B
Negative USB Differential Data (Full Speed)
DMH
RREF
B
-
Negative USB Differential Data (High Speed)
510Ohm reference resistor input
11
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
5.3
Electrical Characteristics:
5.3.1 Absolute Maximum Ratings (Voltages referenced to GND)
SYMBOL
Description
DVCC0
DVCC1
AVDD
AVCC1
VccCore1~4
VccIO1~6
VI
VI/O
VAI/O
VI/OZ
TSTQ
Tamb
VESD
MIN
MAX
DC supply voltage
-0.5V
+3.6V
DC supply voltage
-0.5V
DC input voltage
DC input voltage range for I/O
DC input voltage for USB D+/D- pins
DC voltage applied to outputs in High Z state
Storage temperature range
Operating ambient temperature
static discharge voltage
-0.5V
-0.5V
-0.5V
-0.5V
-60°C
0°C
4000V
+3.6V or
+5.5V
VCC+0.5V
VCC+0.5V
VCC+0.5V
VCC+0.5V
+150°C
70°C
Note : VCC : VccCore,VccIO,DVCC,AVDD or AVCC1
5.3.2 DC Characteristics (Digital Pins) : 3.3 V Logic Core or Pads
SYMBOL
Description
PD
DVCC0
DVCC1
AVDD
AVCC1
VccCore1~4
VccIO1~6
IO
VIL
VIH
VTLH
VTHL
VHYS
VOL
VOH
IOLK
Power Dissipation
Power Supply Voltage
MIN
TYP
MAX
UNIT
3.1
3.3
3.6
mA
V
Power Supply Voltage 3.3V
3
3.3
3.6
DC output sink current excluding D+/D-/VCC/GND
16 or 8
LOW level input voltage
0.9
HIGH level input voltage
2.0
LOW to HIGH threshold voltage
1.3
1.43
1.56
HIGH to LOW threshold voltage
1.3
1.43
1.56
Hysteresis voltage
0
LOW level output voltage when IOL=16mA
0.4
HIGH level output voltage when IOH=16mA
2.4
Leakage current for pads with internal pull up or pull
46
down resistor
RDN
Pad internal pulldown resister
72.8K
105.7K
167.4K
RUP
Pad internal pullup resister
135.9K
167.8K
212.4K
Note: hbd16dhk is internal pulled down ; hbd16uhk is internal pulled up ; hbd16* is 16mA ; hbd8* is for 8mA
5.3.2 DC Characteristics (Digital Pins) : 5.0 V Pads
SYMBOL
Description
PD
VccIO1~6
IO
VIL
VIH
VTLH
VTHL
VOL
VOH
IOLK
RDN
Power Dissipation
Power Supply Voltage 5.0V
DC output sink current excluding D+/D-/VCC/GND
LOW level input voltage
HIGH level input voltage
LOW to HIGH threshold voltage
HIGH to LOW threshold voltage
LOW level output voltage when IOL=8mA
HIGH level output voltage when IOH=8mA
Leakage current for pads with internal pull up or pull
down resistor
Pad internal pulldown resister
12
MIN
TYP
MAX
4.5
16
5.0
5.5
UNIT
46
206.6K
Ohms
0.9
0.4
2.4
159.5K
Ohms
Ohms
mA
V
mA
V
V
V
V
V
V
µA
2.4
104.6K
V
mA
V
V
V
V
V
V
V
µA
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
RUP
Pad internal pullup resister
5.3.3 DC Characteristics (D+/D-)
SYMBOL
VOL
VOH
VDI
VCM
VSE
CIN
ILO
ZDRV
Description
D+/D- static output LOW(RL of 1.5K to 3.6V )
D+/D- static output HIGH (RL of 15K to GND )
Differential input sensitivity
Differential common mode range
Single-ended receiver threshold
Transceiver capacitance
Hi-Z state data line leakage
Driver output resistance
13
81.9K
103.2K
254.6K
Ohms
MIN
TYP
MAX
UNIT
0.3
3.6
V
V
V
V
V
pF
µA
Ohms
2.8
0.2
0.8
0.2
-10
28
2.5
20
+10
43
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
6
6.1
Application Description
System Clock
Internal PLL.
A. PLL : 12MHz input , 24,30,40 MHz output to internal system .
6.2
Pixel Clock
A. Normal mode
Scan mode 0:
(three-line-in or one-line-in)
a. 12 system clock/pixel
b. Chunky color(three line in),fine-gray or fine-line-art scan
for CCD.
c. Planar color scan (one line in) or Monochrome scan
for CIS
B. Fast mode
Scan mode 4 (one line in) :
a. 6 system clock/pixel.
b. Planar color scan (one line in) or Monochrome scan.
c. Fast-gray or fast-line-art scan for CCD.
d. Planar color(one line in),gray, true gray or line-art scan for
CIS.
C. Scan mode 5 (three line in):
a. 15 system clock/pixel
b. Chunky color(three line in),fine-gray or fine-line-art scan
for CCD.
c. Planar color scan (one line in) or Monochrome scan
for CIS
D. Scan mode 6 (three line in):
a. 18 system clock/pixel
b. Chunky color(three line in),fine-gray or fine-line-art scan
for CCD.
c. Planar color scan (one line in) or Monochrome scan
for CIS
Note : Chunky Color is R1G1B1,R2G2B2,R3G3B3,………(three-line-in or pixel rate)
Planar Color is R1,R2,R3,…..;G1,G2,G3,…….;B1,B2,B3,……..(one-line-in or line rate)
CCD : Chunky color or planar color.
CIS : Planar color
6.3
Scan Speed
A. System clock = 30MHz :
a. Normal Mode : Chunky color, fine gray or fine line art scan.
(scan mode 0) 12x33.333ns/pixel = 0.4us/pixel
14
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
(1). 600dpi : 2.160ms/line,15.163s/page.
(2). 1200dpi : 4.320ms/line,60.653s/page.
b.
Fast Mode : Planar color , fast gray or fast line art scan.
(scan mode 4) 6x33.333ns/pixel = 0.2us/pixel
(1). 600dpi : 1.08ms/line,7.582s/page for fast gray or fast line art.
(2). 1200dpi : 2.160ms/line,30.326s/page for fast gray or fast line art.
B. System clock = 40MHz :
a.Normal Mode : Chunky color,fine gray or fine line art scan.
12x25ns/pixel = 0.3us/pixel
(1). 600dpi : 1.620ms/line,11.372s/page.
(2). 1200dpi : 3.240ms/line,45.488s/page.
b.Fast Mode
: Planar color , fast gray or fast line art scan.
6x25ns/pixel = 0.15us/pixel
(1). 600dpi : 0.81ms/line,5.616s/page for fast gray or fast line art.
(2). 1200dpi : 1.62ms/line,22.744s/page for fast gray or fast line art.
6.4
Fast scan for low DPI
Speed up CCD clocking rates allows speeding up scanning speed.
Such as Stagger CCD, you can speed up 2 times,4 times scanning time for low resolution as 600dpi
scanner: if 75dpi speed up 4 times then 1.620ms/4=0.405ms/line.
Scan speed is equal to 0.355s/page.
6.5
Scanning Type
Support three line in(parallel ) for CCD, one line in for CIS two types.
A. CCD
a. Three line in :
R
G
B
b. Line by line :
R
G
B
B. CIS
a. color scan :
15
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
TG
LED R
LED G
LED B
b.
gray scan:
TG
LED R/G/B
c.
true gray scan:
TG
LED R
LED G
LED B
6.6
Image Sensor Timing
Can be programmed.
A. CCD : support 600,1200 or 2400 dpi CCD.
For example NEC, TOSHIBA, Sony ……etc.
B. CIS : support 600,1200 or 2400 dpi CIS.
For example Toshiba , Canon……etc.
6.7
Dummy Line
Support programmable dummy lines to resolve (overcome) Start/Stop problem.
You can insert dummy lines to reduce scanner stop and wait events (buffer full) or always non-stop.
A. Line base of dummy lines:
The range of dummy lines is 0 line ~ 15 lines.
B. Adjustable dummy line:
16
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
The range is CCD or CIS minimum shift out time to 2096k pixels time , which can be adjusted by 1
pixel time increment.
6.8
Analog Front End Timing
External 16 bits Front-End for Wolfson WM8192, WM8199……etc.
6.9
Image Type
Support color, fine gray, fine line art, fast gray and fast line art scan.
Support color filters selection for gray and line art scans. The filters include Red, Green and Blue.
Note: The scan style of fine line art, fine gray or color are the same. So fine gray or fine line art
scanning speed is slow.
The exposure time of fast line art or fast gray scan is shorter than fine line art or fine gray scan.
So, fast line art or fast gray scanning speed is high.
6.10 Bits Depth
16 x3 Bits true color , 16 bits gray level and one bit line art(Black & White).
Image data type : 16 bits , 8 bits and 1 bit data type.
6.11 Shading & Correction
a. White Shading & Dark Shading:
Internal white shading by pixel (16 bits resolution) and dark shading by pixel (16 bits resolution),
can be enabled or disabled By S/W. The white shading curve is calculated by S/W.
Data arrangement: three line in mode: dark R1,white R1,dark G1,white G1,dark B1,white B1,
dark R2,white R2,dark G2,white G2,dark B2,white B2,
dark R3,white R3,dark G3,white G3,dark B3,white B3,……
one line in mode:dark R1,white data R1,dark R2,white R2,dark R3, white R3…
dark G1,white data G1,dark G2,white G2,dark G3,white G3…
dark B1,white data B1,dark B2,white B2,dark B3,white B3…
White shading formula :
2000H x Target / (Wn-Dn) = White Gain data ----- for 8 times system
White shading formula :
4000H x Target / (Wn-Dn) = White Gain data ----- for 4 times system
For example : Target = 3FFFH Wn = 2FFFH Dn = 0040H and 8 times system operation
then White Gain = 2000H x 3FFFH / (2FFFH-0040H) = 2AE4H (1.34033 times)
b. Gamma Correction :
GAMMA correction table is calculated by S/W. The resolution is 16 bits gamma table.
Range: 0 to 64k (16 bits) input mapping to 0 to 255 (8 bits) output ;
Style : increment or decrement gamma curve style.
Note: If you bypass gamma correction , you can get 16 bits image data.
If you enable gamma correction , you can get 8 bits image data.
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GL841 USB 2.0 2-in-1 Scanner Controller
6.12 Threshold Level Setting
Can be programmed by S/W.
Range: 0 to 255 can be adjusted by one increment.
The threshold with bandwidth is in order to reduce image noise.
BWHI
d
BWLOW
b
c
h
e
f
i
bandwidth
g
a
a,b,c,g : are black pixels
d,e,f,h,i : are white pixels
6.13 Exposure Time Adjustable
Maximum: 2096k pixels time
Adjustment step: 1 pixel time.
For Transparency scan,the exposure time can up to 2096k pixel time.
6.14 Scan Width control
Scan width control for horizontal line.
a.Support start pixel address, end pixel address and dummy pixel number setting
b.Maximum length: 64k pixels.
Minimum length: 1 pixel
6.15 Support built-in USB(2.0)
a.Two in one: USB2.0 + scanner controller.
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GL841 USB 2.0 2-in-1 Scanner Controller
6.16 DRAM Timing
Support 4Mx1 , x2 Bits (256Kx16) or 16M Bits (1Mx16) for EDO DRAM ; 4M or 8M Bits for
SRAM ,as image buffer and calibration buffer timing.
You can select single or double DRAM for scanner. DRAM speed is 28ns and above for 30MHz
system clock,25ns and above for 40MHz system clock.
6.17 Horizontal Resolution Adjustable for DPI Function
A. Digital deletion type :
The resolution from 1 DPI to 2400 DPI , can be adjusted by 1 DPI increment by S/W.
B. Digital average type :
Support 1/2,1/3,1/4,1/5,1/6,1/8,1/10,1/12,1/15 digital average function.
For example, 1200dpi scanner: 600dpi, 400dpi, 300dpi, 240dpi, 200dpi,
150dpi, 120dpi, 100dpi, 80dpi average function.
C. Support stagger CCD :
Support 1/2,1/4 resolution , such as NEC , Toshiba and Sony stagger CCD.
6.18 Vertical Resolution Adjustable for DPI Function
The resolution of motor speed control is 16 bits, therefore we can control vertical resolution.
By one dpi increment, the resolution can be from 1 DPI to 4800DPI for 1200DPI scanner; and 1 DPI
to 9600 DPI for 2400dpi scanner.
Note: The resolution of quarter step can up to four times resolution.
6.19 Acceleration/Deceleration Five Table
The acceleration/deceleration slope tables are stored in DRAM, can be download by S/W.
The slope can be programmed by S/W for each table. Resolution is 16 bits pixel-time. The number of
slope steps is 1~512 steps. There are five tables for motor moving. Three tables are for scanning and
the others are for fast moving. The forward and backward steps can be programmed by S/W. The
resolution is 16 bits pixel-time. The number of slope steps is 1~512 steps. You can adjust any nonlinear curve.
Note: what is fast move? Such as move back to go- home or move to scan window in any position .
(1). Two tables go to scan:
speed
Scanning position
buffer full position
scan finished
Go to scan window
A(4)
B(4)
forward
D(1)
C(1)
E(1)
F(3)
time
G(5),K
H(2)
19
I(2)
J(4)
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
backward
go home
A,J
B
C,D
F
I
H
G
K
: table four (slope four) acceleration curve for fast moving.
: table four (slope four) deceleration curve for fast moving.
: table one (slope one) acceleration curve for scanning forward.
: table three (slope three) deceleration curve for scanning finish.
: table two (slope two) acceleration curve for scanning backward.
: table two (slope two) deceleration curve for scanning backward.
: table five (slope five) deceleration curve for go-home.
: touch home sensor deceleration curve for go-home.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
(2). One tables go to scan:
speed
Scanning position
buffer full position
scan finished
go to scan window
C(1)
D(1)
E(1)
F(3)
time
G(5),K
H(2)
I(2)
J(4)
Go home
J
C,D
F
I
H
G
K
: table four (slope four) acceleration curve for fast moving.
: table one (slope one) acceleration curve for scanning forward.
: table three (slope three) deceleration curve for scanning finish.
: table two (slope two) acceleration curve for scanning backward.
: table two (slope two) deceleration curve for scanning backward.
: table five (slope five) deceleration curve for go-home.
: touch home sensor deceleration curve for go-home.
6.20 Stepping Motor Phase Control
There is 8 output control pins to control stepping motor.mtr_ph0~7 for bi-polar andmtr_ph0~3 for
Uni-polar.
A. bi-polar :
a. Support 2916 motor driver timing and 2916 compatible driver IC, such as L6219.
Include full, half and quarter step control.
b. Support 3955 motor driver timing.
Include full, half, quarter and eighth step control.
c. Support LB1939,LB1940 motor driver timing.
Include full and half step control.
B. uni-polar :
a. Support 2003 motor driver timing and 2003 compatible driver IC.
b. Include full step two phases on, full step single phase on and half step.
c. PWM control, include frequency and duty control.
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GL841 USB 2.0 2-in-1 Scanner Controller
PWM
Duty
Frequency
Phase on time
6.21 Watch-Dog Protection
This function can automatically reset the system to initial state, whenever the system is held (no
access signal ) beyond the time limit.Be able to enable or disable this function by S/W.
This function can protect motor power, lamp power and ASIC system.
Calculation formula : (30sec.) x (times setting) x (setting no.).
The range of setting no. is 1~15;the range of times setting is 0~1.
6.22 Lamp Timeout Control
This circuitry can automatically reset the lamp power, whenever the system is setting. Be able to
enable or disable this function by S/W.
Calculation formula: (60sec.) x (times setting) x (setting no.).
The range of setting no. is 1~7;the range of times setting is 0~3.
6.23 Lamp Power Control
These are two power control ports for lamp. One is for Flatbed and the other is for XPA
(Transparency or film).
The resolution of its PWM type is 8 bits. Duty range is 1/256~256/256.
Note : carrier frequency is (system clock)/256.
6.24 Sensor Input
The system support home sensor input port.
6.25 16 GPIO ports
You can set input or output for each GPIO pin of the GPIO1~16 separately.
Such as keypads inputs, document sensor for sheet-fed or motor power control…etc.
Note : there are two pins for special function. One is GPIO12 and the other is GPIO11.
GPIO12 : 1. Pull up by resister to indicate that ASIC turn on lamp power whenever power on
initial.
2. Pull down by resister to indicate that ASIC turn off lamp power whenever power
on initial.
3. This pin can control bi-polar motor driver 2916,6219,3966 or 3955 Vref in order to
control Imax. current.
GPIO11 : This pin can control bi-polar motor driver 2916,6219,3966 or 3955 Vref in order to
control Imax. current.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
6.26 GPO17~18 ports or Motor MTR_PH6~7 two Phase
You can select 2 pins for 3955 2 phase MTR_PH6~7 output or GPO17~18 output.
6.27 GPO13 Port or Motor Trigger signal for ADF
Motor trigger signal for ADF motor moving ,It can be controlled under scanning condition.
6.28 Power on Check
The default status of the PWRBIT is reset. You can set the PWRBIT and then read back the status in
order to check the power status. This operation is able to check first time power on or not.
6.29 RAM Test
S/W can test DRAM/SRAM IC by writing and reading back for checking.
6.30 LED Blinking
Support LED- blinking function. It is implemented in GPIO13~18 pins.
6.31 Support Back Scanning
Support forward or Backword scanning type.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
7 COMMAND SET DESCRIPTION
Reg.
01
Bit7
Bit6
CISSET
Bit5
DVDSET
AGOHOME
MTRPWR
XPASEL
LAMPPWR
NOTHOME
ACDCDIS
03
LAMPDOG
AVEENB
04
LINEART
BITSET
AFEMOD[1:0]
DPIHW[1:0]
06
Bit3
DOGENB
02
05
Bit4
09
DECFLAG
GMMFFR
MCNTSET[1:0]
Bit0
M16DRAM
DRAMSEL
SHDAREA
S CAN
FASTFED
MTRREV
HOMENEG
LONGCURV
LAMPTIM[3:0]
FESET[1:0]
GMMENB
MTLBASE[1:0]
PWRBIT
GAIN4
SRAMSEL
FASTDMA
DMASEL
DMARDWR
GMMFFG
GMMFFB
GMMZR
GMMZG
GMMZB
BACKSCAN
ENHANCE
SHORTTG
NWAIT
07
08
Bit1
FILTER[1:0]
MTLLAMP[1:0]
SCANMOD[2:0]
Bit2
CLKSET[1:0]
OPTEST[2:0]
0A
SRAMBUF
0B
0C
0D
CLRLNCNT
0E
SCANRESET
0F
MOVE
10
EXPR[15:8]
11
EXPR[7:0]
12
EXPG[15:0]
13
EXPG[7:0]
14
EXPB[15:8]
15
EXPB[7:0]
16
17
18
CTRLHI
TOSHIBA
TGINV
TGMODE[1:0]
CNSET
CK1INV
CK2INV
CTRLINV
CKDIS
CTRLDIS
TGW[5:0]
DCKSEL[1:0]
CKTOGGLE
19
CKDELAY[1:0]
CKSEL[1:0]
EXPDMY[7:0]
1A
MANUAL3
MANUAL1
CK4INV
CK3INV
LINECLP
1B
1C
CK4MTGL
CK3MTGL
CK1MTGL
1D
CK4LOW
CK3LOW
CK1LOW
1E
CKAREA
MTLWD
TGSHLD[4:0]
WDTIME[3:0]
LINESEL[3:0]
1F
SCANFED[7:0]
20
BUFSEL[7:0]
21
STEPNO[7:0]
22
FWDSTEP[7:0]
23
BWDSTEP[7:0]
24
FASTNO[7:0]
25
LINCNT[19:16]
26
Reg.
TGTIME[2:0]
LINCNT[15:8]
Bit7
Bit6
Bit5
Bit4
Bit3
24
Bit2
Bit1
Bit0
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
27
LINCNT[7:0]
28
“GMMWRDATA”
29
LAMPPWM[7:0]
2A
RAMADDR[15:8]
2B
RAMADDR[7: 0]
2C
DPISET[11:8]
2D
DPISET[7:0]
2E
BWHI[7:0]
2F
BWLOW[7:0]
30
STRPIXEL[15:8]
31
STRPIXEL[7:0]
32
ENDPIXEL[15:8]
33
ENDPIXEL[7:0]
34
DUMMY[7:0]
35
MAXWD[19:16]
36
MAXWD[15:8]
37
MAXWD[7:0]
38
LPERIOD[15:8]
39
LPERIOD[7:0]
3A
FEWRDATA[8]
3B
FEWRDATA[7:0]
3C
“RAMWRDATA”
3D
FEEDL[19:16]
3E
FEEDL[15:8]
3F
FEEDL[7:0]
40
41
HISPDFLG
PWRBIT
BUFEMPTY
FEEDFSH
SCANFSH
HOMESNR
42
LAMPSTS
MOTMFLG
FEBUSY
MOTORENB
VALIDWORD[19:16]
43
VALIDWORD[15:8]
44
VALIDWORD[7:0]
45
“RAMRDDATA”
46
FERDDATA[8]
47
FERDDATA[7:0]
48
FEDCNT[19:16]
49
FEDCNT[15:8]
4A
FEDCNT[7:0]
4B
SCANCNT[19:16]
4C
SCANCNT[15:8]
4D
SCANCNT[7:0]
4E
“GMMRDDATA”
Reg.
DATAENB
Bit7
Bit6
Bit5
Bit4
Bit3
25
Bit2
Bit1
Bit0
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
4F
50
FERDA[5:0]
51
FEWRA[5:0]
52
RHI[4:0]
53
RLOW[4:0]
54
GHI[4:0]
55
GLOW[4:0]
56
BHI[4:0]
57
BLOW[4:0]
58
VSMP[4:0]
VSMPW[2:0]
59
BSMP[4:0]
BSMP[2:0]
5A
ADCLKINV
RLCSEL
CDSREF[1:0]
RLC[3:0]
5B
GMMADDR[9:8]
5C
GMMADDR[7:0]
5D
HISPD[7:0]
5E
DECSEL[2:0]
STOPTIM[4:0]
5F
FMOVDEC[7:0]
60
Z1MOD[20:16]
61
Z1MOD[15:8]
62
Z1MOD[7:0]
63
Z2MOD[20:16]
64
Z2MOD[15:8]
65
Z2MOD[7:0]
66
PHFREQ[7:0]
67
STEPSEL[1:0]
MTRPWM[5:0]
68
FSTPSEL[1:0]
FASTPWM[5:0]
69
FSHDEC[7:0]
6A
FMOVNO[7:0]
6B
MULTFILM
GPOM13
GPOM12
GPOM11
GPO18
GPO17
6C
GPIO16
GPIO15
GPIO14
GPIO13
GPIO12
GPIO11
GPIO10
GPIO9
6D
GPIO8
GPIO7
GPOI6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
6E
GPOE16
GPOE15
GPOE14
GPOE13
GPOE12
GPOE11
GPOE10
GPOE9
6F
GPOE8
GPOE7
GPOE6
GPOE5
GPOE4
GPOE3
GPOE2
GPOE1
70
RSH[4:0]
71
RSL[4:0]
72
CPH[4:0]
73
CPL[4:0]
74
CK1MAP[17:16]
75
CK1MAP[15:8]
76
CK1MAP[7:0]
Reg.
Bit7
Bit6
Bit5
Bit4
Bit3
26
Bit2
Bit1
Bit0
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
77
CK3MAP[17:16]
78
CK3MAP[15:8]
79
CK3MAP[7:0]
7A
CK4MAP[17:16]
7B
CK4MAP[15:8]
7C
CK4MAP[7:0]
7D
CK1NEG
CK3NEG
7E
7F
BSMPDLY[1:0]
80
VRHOME[1:0]
CK4NEG
RSNEG
CPNEG
BSMPNEG
VSMPNEG
DLYSET
GPOLED18
GPOLED17
GPOLED16
GPOLED15
GPOLED14
GPOLED13
VSMPDLY[1:0]
LEDCNT[3:0]
VRMOVE[1:0]
VRBACK[1:0]
VRSCAN[1:0]
81
ROFFSET[8]
82
ROFFSET[7:0]
83
GOFFSET[8]
84
GOFFSET[7:0]
85
BOFFSET[8]
86
87
BOFFSET[7:0]
YENB
YBIT
ACYCNRLC
ENOFFSET
LEDADD
CK4ADC
AUTOCONF
1. Reg : 01H (Read/Write)
Default : 00H
B7:CISSET
: set: CIS scan type.
: reset: CCD scan type.
B6:DOGENB
: set: enable watch dog of ASIC(set time out:Reg1E[7:4]).
: reset: disable.
B5:DVDSET
: set : enable shading (include whole line shading and
area shading two kinds).
: reset : disable shading.
B4 : Reserved.
B3: M16DRAM : set: to select 16M bits DRAM (1M * 16).
: reset: to select 4M or 8M bits DRAM(256*16).
B2:DRAMSEL : set : the DRAM size is 4Mx2 (256kx16x2) bits.
: reset : the DRAM size is 4Mx1(256kx16x1) bits.
B1:SHDAREA :set: enable shading area (depend on scan area and scan dpi).
: reset: shading area is whole line.
B0:SCAN
: set: enable scan process.
: reset: disable scan process.
2. Reg : 02H (Read/Write)
Default : 00H
B7:NOTHOME : set: auto-go-home doesn’t go back to home position.
: reset: go back to home position automatically.
B6:ACDCDIS : set: disable forward/backward moving whenever buffer full.
: reset: enable forward/backward moving whenever buffer full.
B5:AGOHOME : set: whenever scan is finished, carriage go home automatically.
: reset: disable auto-go-home function.
B4:MTRPWR : set: turn on MOTOR power and phase.
: reset: turn off MOTOR power and phase.
B3:FASTFED
: set: enable two table for motor moving of the acceleration/deceleration.
: reset: disable two table, only use single table.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
B2:MTRREV
: set: set motor reverse moving.
: reset: set motor forward moving.
B1:HOMENEG : set: to indicate whenever home sensor change from high to low (falling edge) then motor
is decelerated.
Reset: to indicate whenever home sensor change from low to high (rising edge) then
motor is decelerated.
B0:LONGCURV : set: the deceleration curve of the fast moving is table 5.
: reset: the deceleration curve of the fast moving is table 4.
3. Reg : 03H (Read/Write)
Default : 0CH
B7:LAMPDOG
: set: to start lamp sleeping mode(default on).
: reset: to disable lamp sleeping mode.
B6:AVEENB
: set: select dpi average function
: reset: select dpi deletion function.
B5:XPASEL
: set: select transparency lamp on.
: reset: select flatbed lamp on.
B4:LAMPPWR
: set: turn on LAMP power.
: reset: turn off LAMP power.
B3~0:LAMPTIM[3:0]
: lamp on time setting (default: 4)
The unit is minute.
4. Reg : 04H (Read/Write)
Default : 00H
B7:LINEART
: set: Black/White scan.
: reset: Color/Gray scan.
B6:BITSET
: set : 16 bits image data type (= word).
: reset : 8 bits image data type (= byte).
B5~4: AFEMOD[1:0]
: to indicate AFE operation mode.
Wolfson Type
AFEMOD SCANMOD
2
1
0
Description
2
Timing Requirements
CDS
Max Sample Rate
Available
Yes
Timing Requirements
Slow color
MCLK:VSMP Rate is 8:1
Pixel-by-pixel
0,1,3,4,5,6 Color pixel-by-pixel Yes
6.67MSPS *3 channel MCLK:VSMP Rate is 6:1
0,1,4,5,6
Fast Mono
Yes
13.3MSPS *1 channel MCLK:VSMP Rate is 3:1
Analog Device Type
AFEMOD SCANMOD
2
CDS
Max Sample Rate
Available
Yes
5MSPS *3 channel
Description
0,1,4,5,6
Slow color
Pixel-by-pixel
1
0,1,2,3,4,5,6 Mono
0
0,1,2,3,4,5,6 Fast Mono
B3~2:FILTER[1:0]
: scan color type :
B1~0:FESET[1:0]
Yes
Yes
: front end operation type:
MCLK:VSMP Rate is 3:1
MCLK:VSMP Rate is 2:1
MCLK:VSMP Rate is 1:1
a.00: color
b.01: R
c.10: G
d.11: B
a.00: ESIC type 1.
b.01: ESIC type 2.
c.10: ADI type.
d.11: reserved.
5. Reg : 05H (Read/Write)
Default:00H
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
B7~6: DPIHW[1:0]
B5~4: MTLLAMP[1:0]
B3: GMMENB
B2: Reserved.
B1~0: MTLBASE[1:0]
: set CCD/CIS resolution
00=600dpi
01=1200dpi
10=2400dpi
11=reserved.
: to set times of the lamp time out.
00: 1* LAMPTIM
01: 2*LAMPTIM
10: 4*LAMPTIM
11: reserved.
: set: enable gamma correction.
: reset: bypass gamma correction.
: to set output CCD pixel number under each system pixel time.
00=1 CCD pixel/system pixel time.
01=2 CCD pixels/system pixel time.
10=3 CCD pixels/system pixel time.
11=4 CCD pixels/system pixel time.
6. Reg : 06H (Read/Write)
Default:00H
B7~5: SCANMOD[2:0] : set scan operation mode
000:12 clocks/pixel ; normal mode operation for scanning.
Include color(pixel rate),fine gray and fine line-art.
001:12 clocks/pixel ; bypass mode operation for calibration.
Include color(pixel rate) and fine gray.
010:reserved.
011:reserved.
100:6 clocks/pixel ; fast mode operation.
Include color(line rate),fast gray and fast line-art.
101:15 clocks/pixel ; for 16 bits color output.
110:18 clocks/pixel ; for 16 bits color output.
B4: PWRBIT
:When power on,set this bit.To indicate power has on.
Default is reset.
B3: GAIN4
: set: digital shading gain=4 times system.
: reset: digital shading gain=8 times system.
Note: If you want to get more precise image quality,you can set GAIN4 bit.
B2~0: OPTEST[2:0]:
select ASIC operation type.
000: set normal mode to capture AFE image.
001: set DRAM bank,power on carriage initiated and
ADF(motortgo) test for ASIC simulation.
010: pixel count pattern for ASIC image test.
011: line count pattern for ASIC image test.
100: counter and adder test for ASIC simulation test.
7. Reg : 07H (Read/Write)
Default:00H
B3:SRAMSEL
: set: DMA access for SRAM.
: reset: DMA access for DRAM.
B2:FASTDMA
B1:DMASEL
B0:DMARDWR
: set: 2clocks/access,that is to say 2clocks/16bits or 2clocks/8bits for DMA access.
: reset: 4clocks/access,that is to say 4clocks/16bits or 4clocks/8bits for
DMA access.
: set: DMA access DRAM under command mode.
: reset: MPU access DRAM under command mode.
: set: DMA read DRAM under command mode.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
: reset: DMA write DRAM under command mode.
Note: DMA operation can be processed under CPU and DMA type.
8. Reg : 08H (Read/Write)
Default:00H
B6: DECFLAG
: set :gamma table is decrement type
: reset :gamma table is increment type.
B5: GMMFFR
: set: to indicate that red channel Gamma table address FFH is special value.
B4: GMMFFG
: set: to indicate that red channel Gamma table address FFH is special value.
B3: GMMFFB
: set: to indicate that red channel Gamma table address FFH is special value.
B2: GMMZR
: set: to indicate that red channel Gamma table address 00H is special value.
B1: GMMZG
: set: to indicate that green channel Gamma table address 00H is special value.
B0: GMMZB
: set: to indicate that blue channel Gamma table address 00H is special value.
9. Reg : 09H (Read/Write)
Default:00H
B7~6: MCNTSET[1:0] : to select the unit of motor table counter.
00: pixel count.
01:system clock*2.
10:system clock*3.
11:system clock*4.
B5~4: CLKSET[1:0] : to select the system clock frequency.
00: 24MHz
01: 30MHz
10: 40MHz
11:48MHz.
B3:
BACKSCAN
: set: to enable backward scan function.
: reset: to select forward scan function.
B2:
ENHANCE
: set: to enhance EPP interface speed for USB2.0
: reset: to select normal EPP interface speed for USB2.0
B1:
SHORTTG
: set: enable short CCD SH(TG) period for film scanning.
B0:
NWAIT
: set: to delay nWait (H_BUSY) one clock.
10. Reg : 09H (Read/Write)
Default:00H
B0:
SRAMBUF
:set: to select external SRAM as the image buffer.
:reset: to select external DRAM as the image buffer.
11. Reg : 0DH (Write)
Command :
B0:
CLRLNCNT
scanner command.
: set: to clear SCANCNT(Reg4B,Reg4C,Reg4D).
: reset: don’t clear SCANCNT.
Note: For each time scanning , you must clear SCANCNT before starting process.
12. Reg : 0EH (Write)
Command : scanner software reset.
It can initiate AISC system, including lamp and motor,
Control registers, internal circuit and status, but not including tables in
DRAM, like gamma table, shading table and acceleration/deceleration table.
Note: In normal condition, it is unnecessary to reset scanner , unless the scanner is out of control.
13. Reg : 0FH (Write)
Command : motor moving.
Start motor farward/backward moving.
14. Reg : 10,11H (Read/Write)
Default : 00H,00H
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EXPR[15:0]: Red-LED array of CIS or Red channel TG of CCD exposure time setting.
Note: can not be programmed to logic zero.
15. Reg : 12H,13H (Read/Write)
Default : 00H,00H
EXPG[15:0]: Green-LED array of CIS or Green channel TG of CCD exposure time setting.
Note: can not be programmed to logic zero.
16. Reg : 14H,15H (Read/Write)
Default : 00H,00H
EXPB[15:0]: Blue-LED array of CIS or Blue channel TG of CCD exposure time.
Note: can not be programmed to logic zero.
17. Reg : 16H (Read/Write)
Default : 32H
B7:CTRLHI
: set: CCD CP & RS are high under TG high position.
: reset: CCD CP & RS are low under TG high position.
B6: TOSHIBA : set: to indicate the image sensor is TOSHIBA CIS.
B5:TGINV
: set: to reverse CCD TG.
: reset: don’t reverse.
B4:CK1INV
: set: to reverse CCD Clock 1.
: reset: don’t reverse.
B3:CK2INV
: set: to reverse CCD Clock 2.
: reset: don’t reverse.
B2:CTRLINV : set: to reverse CCD CP & RS.
: reset: don’t reverse.
B1:CKDIS
: set: disable CCD TG position Clock 1/2 signals.
CCD TG
CCD Clock
: reset: enable CCD TG position Clock 1/2 signals.
CCD TG
CCD Clock
B0:CTRLDIS
: set: disable CCD TG position CP & RS signals.
CCD TG
CCD CP/RS
: reset: enable CCD TG position CP & RS signals.
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GL841 USB 2.0 2-in-1 Scanner Controller
CCD TG
CCD CP/RS
18. Reg : 17H (Read/Write)
Default : 14H
B7~6:TGMODE[1:0]
: to set CCD TG mode.
00:without dummy line CCD TG type.
01:with reflectional document scanning type.
10:with transparency scanning type.
11:TGMODE=2 for simulation.
B5~0:TGW[5:0]
: to set CCD TG width.
Note: Can not be programmed to logic zero.
19. Reg : 18H (Read/Write)
Default : 00H
B7 : CNSET
: set : TG and clock set to Canon CIS style.
: reset: TG and clock is non-Canon CIS style.
B6~5 :DCKSEL : 00 one time CCD Clocks speed for dummy line.
01 two times CCD Clocks speed for dummy line.
10 three times CCD Clocks speed for dummy line.
11 four times CCD Clocks speed for dummy line.
B4 :CKTOGGLE : set : half cycle per pixel for CCD Clock 1/2.
: reset : one cycle per pixel
B3~2 :CKDELAY: 00 no delay
01 delay one system clock for CCD Clock 1/2.
10 delay two systems clock for CCD Clock 1/2.
11 delay three systems clock for CCD Clock 1/2.
B1~0 :CKSEL : 00 one time CCD Clock speed for capture image.
01 two times CCD Clock speed for capture image.
10 three times CCD Clock speed for capture image.
11 four times CCD Clock speed for capture image.
Note : CCD Clock speed up limitation :
1. SCANMOD=0,1 : 12 clocks/pixel
a. toggle CCD : be able to speed up 1,2,3,4 times.
b. non-toggle CCD : be able to speed up 1,2,3 times.
2. SCANMOD=2 : reserved.
2. SCANMOD=3 : reserved.
3. SCANMOD=4 : 6 clocks/pixel
a. toggle CCD : be able to speed up 1,2,3 times.
b. non-toggle CCD : can not speed up.
4. SCANMOD=5 : 15 clocks/pixel
a.toggle CCD : be able to speed up 1,2,3,4 times.
b.non-toggle CCD : be able to speed up 1,2,3 times.
5. SCANMOD=6 : 18 clocks/pixel
a.toggle CCD : be able to speed up 1,2,3,4 times.
b.non-toggle CCD : be able to speed up 1,2,3,4 times.
20. Reg : 19H (Read/Write)
Default : 00H
EXPDMY[7:0] : to set dummy line exposure time (unit = 256 pixels time) or CIS LED array turn-on time.
Note: the unit is pixel time.
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CIS SP
CIS LED
EXPDMY for turn on
Note: can not be programmed to logic zero.
EXPR/EXPG/EXPB for turn off
21. Reg : 1AH (Read/Write)
Default : 00H
B7: Reserved.
B6: Reserved.
B5:MAUNAL3
: set : CCD Clock 3,Clock4 manual output.
: reset : CCD Clock 3,Clock4 automatic output.
B4:MANUAL1
: set : CCD Clock 1,Clock2 manual output.
: reset : CCD Clock 1,Clock2 automatic output.
B3:CK4INV
: set : to reverse CCD Clock4.
: reset : don’t reverse.
B2:CK3INV
: set : to reverse CCD Clock 3.
: reset : don’t reverse.
B1:LINECLP
: set : to select CCD line clamping.
: reset : to select CCD pixel clamping.
B0:Reserved.
22. Reg : 1BH (Read/Write)
Default : 00H
Reserved.
23. Reg : 1CH (Read/Write)
Default : 00H
B7: CK4MTGL
: to indicate CCD clock 4 to use toggle function.
B6: CK3MTGL
: to indicate CCD clock 3 to use toggle function.
B5: CK1MTGL
: to indicate CCD clock 1 to use toggle function.
B4: CKAREA
: set : CCD coloks speed depend on scan area.
B3: MTLWD
: to set double of the watch-dog time out .
B2~0:TGTIME[2:0]
: CCD Line Period selection.
a.000: 1*LPERIOD(Reg38,Reg39)
b.001: 2*LPERIOD
c.010: 4*LPERIOD
d.011: 8*LPERIOD
e.100: 16*LPERIOD
f. 101: 32*LPERIOD
24. Reg : 1DH (Read/Write)
Default : 04H
B7
:CK4LOW
: to set CCD clock4 are low under CCD TG.
B6
:CK3LOW
: to set CCD clock3 are low under CCD TG.
B5:
:CK1LOW
: to set CCD clock1,2 are low under CCD TG.
B4~0 :TGSHLD[4:0] : to set CCD TG shoulder width.
Note: You have to program the TGSHLD >= 2 (more than two)
25. Reg : 1EH (Read/Write)
Default : 20H
B7~4:WDTIME[3:0]
: to set watch-dog time
The unit is 30 seconds.
B3~0:LINESEL[3:0] : to set CIS Vertical DPI or dummy lines.
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GL841 USB 2.0 2-in-1 Scanner Controller
CIS : LINESEL =0 full dpi.
=1 1/2 dpi
=2 1/3 dpi
…..
=15 1/16 dpi
CCD : LINESEL =0 no dummy line.
=1 1 dummy line.
=2 2 dummy lines.
……
=15 15 dummy lines.
Note : CIS can be implemented dummy line by motor move mothod,not dummy lines.
26. Reg : 1FH (Read/Write)
Default : 00H
SCANFED[7:0]: move to scanning position by table one under two table operation.
Note: can not be programmed to logic zero.
27. Reg : 20H (Read/Write)
Default : 00H
BUFSEL[7:0] : to set buffer condition (unit = 4k word).
Scanner execute backward/forward moving whenever buffer full.
If MAXWD < buffer condition , then motor move forward to scan.
28. Reg : 21H (Read/Write)
Default : 00H
STEPNO[7:0]: to set scanning forward slope curve of the acceleration/deceleration (table one slope).
Note: can not be programmed to logic zero.
29. Reg : 22H (Read/Write)
Default : 00H
FWDSTEP[7:0] : to set steps number of the forward steps.
Note: can not be programmed to logic zero.
30. Reg : 23H (Read/Write)
Default : 00H
BWDSTEP[7:0] : to set steps number of the backward steps.
Note: can not be programmed to logic zero.
31. Reg : 24H (Read/Write)
Default : 00H
FASTNO[7:0]: to set scanning backward slope curve of the acceleration/deceleration (table two slope).
Buffer full position
speed
Reg22
Reg21
Reg21
time
Reg24
Reg24
Reg23
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GL841 USB 2.0 2-in-1 Scanner Controller
Note: can not be programmed to logic zero.
32. Reg : 25H,26H,27 H (Read/Write)
Default : 00H,00H,00H
LINCNT[19:0]: to set the scan lines number.
Note: can not be programmed to logic zero.
33. Reg : 28H (Read/Write)
Default : 00H
GMMWRDATA : this port to write gamma table.
34. Reg : 29H (Read/Write)
Default : FFH
LAMPPWM[7:0] : to set PWM duty for lamp power control.
0: 1/256 duty.
1: 2/256 duty.
…..
255:256/256 duty.
35. Reg : 2AH,2BH (Read/Write)
Default : 00H.00H
RAMADDR[15:0] : to set DRAM start address to access data.
note: IRAM_A[19:0]={RAMADDR[15:0],4’b0000}.
36. Reg : 2CH,2DH (Read/Write)
Default : 00H,00H
DPISET[10:0] : set resolution of DPI for average type or deletion type.
A. average type : digital average function support 1/2,1/3,1/4,1/5,1/6,1/8,1/10,1/12,1/15.
a. 2400 dpi scanner : can set 1200,800,600,480,400,300,240,200,160 dpi.
b. 1200 dpi scanner : can set 600,400,300,240,200,150,120,100,80 dpi.
c. 600 dpi scanner : can set 300,200,150,120,100,75,60,50 and 40 dpi.
B. deletion type : 2400,1200 or 600dpi to 1 dpi setting decrement by one dpi.
Note: can not be programmed to logic zero.
37. Reg : 2EH (Read/Write)
Default : 00H
BWHI[7:0]
: to set Black & White threshold high level.
38. Reg : 2FH (Read/Write)
Default : 00H
BWLOW[7:0] : to set Black & White threshold low level.
BWHI
d
BWLOW
b
c
h
e
f
i
bandwidth
g
a
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
a,b,c,g : are black pixels
d,e,f,h,i : are white pixels
39. Reg : 30H,31H (Read/Write)
Default : 00H,00H
STRPIXEL[15:0] : to set the begin pixel position (unit : pixel count).
STRPIXEL=(TGW+2*TGSHLD)+Begin pixels number.
Note: can not be programmed to logic zero.
40. Reg : 32H,33H (Read/Write)
Default : 00H,00H
ENDPIXEL[15:0] : to set the end pixel position (unit : pixel count).
ENDPIXEL=(TGW+2*TGSHLD)+End pixels number.
Note: can not be programmed to logic zero.
41. Reg : 34H (Write)
Default : 00H
DUMMY[7:0] : to set the CCD dummy & optical black pixels position (unit : pixel count).
Note : Reg30,31,32,33 and 34 setting rule.
TGSHLD(Reg1D) RGW(Reg17)
TGSHLD(Reg1D)
CCD TG
CCD clock
CCD pixel no: N-1
N
0
1
2
3
4
For example begin pixel is 65 ,end pixel is 100 and CCD dummy pixel is 64,
Then STRPIXEL=(TGW+2*TGSHLD)+65.
ENDPIXEL=(TGW+2*TGSHLD)+100.
DUMMY =(TGW+2*TGSHLD)+64.
Note: can not be programmed to logic zero.
42. Reg : 35H,36H,37H (Read/Write)
Default : 00H,00H,00H
MAXWD[19:0] : to set maximum word size per line for ASIC estimation.
If usable buffer size < MAXWD,then buffer is full.The scanner execute forward and
Backward moving.
43. Reg : 38H,39H (Read/Write)
Default : 15H,18H
LPERIOD[15:0] : to set Line period(or exposure time) for CCD.
Unit : pixel count
Note: can not be programmed to logic zero.
44. Reg : 3AH,3BH (Read/Write)
Default : 00H,00H
FEWRDATA[8:0] : This port is used to write data to control register of front-end.
45. Reg : 3CH (Read/Write)
Default : 00H
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
RAMWRDATA : This port is used to write data to DRAM.
46. Reg : 3DH,3EH,3FH (Read/Write)
Default : 00H,00H,00H
FEEDL[19:0] : to set feeding steps number of motor move.
Note: can not be programmed to logic zero.
47. Reg : 40H (Read)
B2:HISPDFLG : set: motor is high-speed moving.
B1:MOTMFLG : set: motor is moving.
: reset: motor is stop.
B0:DATAENB : set: scanner is scanning mode.
Reset: scanner is command mode.
48. Reg : 41H (Read)
B7:PWRBIT
: To indicate power status.
Power on initial,PWRBIT=0;
B6:BUFEMPTY : set: To indicate that the image buffer is empty.
: reset: To indicate that the image buffer is not empty.
B5:FEEDFSH : set: To indicate that motor feeding is finished.
: reset: To indicate that motor feeding is not finished.
B4:SCANFSH : set: To indicate that scan is finished.
: reset: To indicate that scan is not finished.
B3:HOMESNR : set: home sensor is off (is home position).
: reset: home sensor is on (is not home position).
B2:LAMPSTS : set: lamp is on.
: reset: lamp is off.
B1:FEBUSY
: set: front end is busy and can not read/write again.
: reset: front end is ready and be able to read/write again.
B0:MOTORENB : set: motor is processing.
: reset: motor is not processing.
49. Reg : 42H,43H,44H (Read)
VALIDWORD[19:0] : to indicate available words to read out in the image buffer of DRAM.
50. Reg : 45H (Read)
RAMRDDATA : this port for read DRAM data.
51. Reg : 46H,47H (Read)
FERDDATA[8:0] : this port is used to read out data from front-end control register.
52. Reg : 48H,49H,4AH (Read)
FEDCNT[19:0] : to read motor feeding steps number.
For example,if you have set moving steps no. and execute moving command.
You can read out steps no. moved.
53. Reg : 4BH,4CH,4DH (Read)
SCANCNT[19:0] : to read scanner finished lines number.
54. Reg : 4EH (Read)
GMMRDDATA : this port to read back the gamma table.
55. Reg : 50H (Read/Write)
Default : 00H
FERDA[5:0] : this port is read address setting for Front End control register read.
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
56. Reg : 51H (Read/Write)
Default : 00H
FEWRA[5:0] : this port is write address setting for Front End control register write.
57. Reg : 52H,53H (Read/Write)
Default : 00H,00H
RHI[4:0]
RLOW[4:0]
: to latch R channel high byte data of AFE.
: to latch R channel low byte data of AFE.
58. Reg : 54H,55H (Read/Write)
Default : 00H,00H
GHI[4:0]
: to latch G channel high byte data of AFE.
GLOW[4:0]
: to latch G channel low byte data of AFE.
59. Reg : 56H,57H (Read/Write)
Default : 00H,00H
BHI[4:0]
: to latch B channel high byte data of AFE.
BLOW[4:0]
: to latch B channel low byte data of AFE.
(1). Color,fine gray or fine line-art : 12 phase/pixel
0
1
2
3
4
5
R[15:8] R[7:0]
RHI
GHI
BHI
= 01H
= 05H
= 09H
6
7
8
9
10 11
0
1
2
3
4
5
6
7
8
9
10 11
G[15:8] G[7:0] B[15:8] B[7:0] R[15:8] R[7:0] G[15:8] G[7:0] B[15:8]
RLOW = 03H
GLOW = 07H
BLOW = 11H
(2).Fast gray or fast line-art : 6 phase/pixel
0
1
2
3
4
R[15:8]
RHI = 02H
5
0
1
2
R[7:0]
3
4
5
R[15:8]
0
1
2
R[7:0]
3
4
5
R[15:8]
0
1
2
R[7:0]
3
4
5
R[15:8]
RLOW = 05H
60. Reg : 58H (Read/Write)
Default : 00H
B7~3:VSMP[4:0] : to set the rising edge position of image sampling for AFE.
B2~0:VSMPW[2:0] : to set the pulse width of image sampling.
(1). Color,fine gray or fine line-art : 12 phase/pixel
5
6
7
8
9
10 11
0
1
2
3
4
5
6
7
8
9
10 11
0
1
2
3
AFE VSMP
Reg58=52H : VSMP[4:0]=10H VSMPW[2:0]=2H
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GL841 USB 2.0 2-in-1 Scanner Controller
(2).Fast gray or fast line-art : 6 phase/pixel
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
VSMP
Reg58=0BH : VSMP[4:0]=01H VSMPW=3H
61. Reg : 59H (Read/Write)
Default : 00H
B7~3:BSMP[4:0] : to set the rising edge position of dark voltage sampling for AFE.
B2~0:BSMPW[2:0] : to set the pulse width of dark voltage sampling.
(1). Color,fine gray or fine line-art: 12 phase/pixel
5
6
7
8
9
10 11
0
1
2
3
4
5
6
7
8
9
10 11
0
1
2
3
4
0
1
2
3
4
5
1
2
3
4
5
AFE BSMP
Reg59=52H : BSMP[4:0]=10H BSMPW[2:0]=2H
(2).Fast gray or fast line-art : 6 phase/pixel
0
1
2
3
4
5
0
1
2
3
4
5
0
BSMP
Reg59=0BH : BSMP[4:0]=01H BSMPW=3H
62. Reg : 5AH (Read/Write)
Default : C0H
B7
: ADCLKINV : set: ADC clock reverse.
B6
: RLCSEL
: set: select reset level clamp on a pixel-by-pixel basis.
: reset: don’t select.
B5~4 :CDSREF[1:0] : to set the front-end CDSREF for line rate scanning type.
B3~0 :RLC[3:0]
: to set the front-end RLC for line rate scanning type.
63. Reg : 5BH,5CH (Read/Write)
Default : 00H,00H
GMMADDR[9:0]: to set gamma access start address.
64. Reg : 5DH (Read/Write)
Default : 00H
HISPD[7:0]
: to set change of the moving speed during moving.
Note: can not be programmed to logic zero.
65. Reg : 5EH (Read/Write)
Default : 00H
B7~5:DECSEL[2:0]
:select deceleration steps whenever go home.
000:1 steps deceleration
001:2 steps deceleration
010:4 steps deceleration
011:8 steps deceleration
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GL841 USB 2.0 2-in-1 Scanner Controller
100:16 steps deceleration
101:32 steps deceleration
110:64 steps deceleration
111:128 steps deceleration
B4~0:STOPTIM[4:0]
:select acceleration/deceleration stop time.
Note: STOPTIM simulation for ASIC must be set to tgtime=6,7.
Can not be programmed to logic zero.
66. Reg : 5FH (Read/Write)
Default : 00H
FMOVDEC[7:0] : to set go-home fast move deceleration slope steps (table five slope).
Note: can not be programmed to logic zero.
67. Reg : 60H,61H,62H (Read/Write)
Default : 00H,00H,00H
Z1MOD[20:0]: to set the slope curve of acceleration/deceleration table mode value
Under buffer full moving.
Note: It should be more than LPERIOD.
68. Reg : 63H,64H,65H (Read/Write)
Default : 00H,00H,00H
Z2MOD[20:0]: to set the slope curve of acceleration/deceleration mode value
Under first time moving to scanning .
Note: It should be more than LPERIOD.
(1). Two table moving :
speed
Scanning position
b
buffer full position
d
a
c
time
(2). One table moving :
speed
Scanning position
b
buffer full position
d
a
c
time
{a+(b-1)} mode LPERIOD = Z2MOD
{c+(d-1)} mode LPERIOD = Z1MOD
note: If MCNTSET[1:0]=01 or 10 or 11,then (each step curve value + 1)/VCNT.
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VCNT= system clocks per pixel / (MCNTSET+1).
69. Reg : 66H (Read/Write)
Default : 00H
PHFREQ[7:0]: to set PWM frequency for motor phase of uni-polar.
Frequency : (24MHz)/[(PHFREQ+1)*4
70. Reg :67H (Read/Write)
Default : 7FH
B7~6:STEPSEL[1:0]
: for table one or two scanning move step type selection.
(1).bi-polar :
a.00: full step (for 1939,1940,2916,6219 or 3966).
b.01: half step (for 1939,1940,2916,6219 or 3966).
c.10: quarter step (for 2916 or 6219).
d.11: reserved.
(2).uni-polar :
a.00: two-phase-on full step.
b.01: half step.
c.10: reserved.
d.11: single-phase-on full step.
B5~0:MTRPWM[5:0]
: to set PWM duty cycle for table one motor phase of uni-polar.
MTRPWM
= 0 1/64 duty
= 1 2/64 duty
= 2 3/64 duty
……
= 63 64/64 duty
Note: If PHFREQ < 0FH,then PWM setting must < (PHFREQ+1)*4
71. Reg :68H (Read/Write)
Default : 7FH
FSTPSEL[1:0] : for table two fast moving step type selection.
(1).bi-polar :
a.00: full step (for 1939,1940,2916,6219 or 3966).
b.01: half step (for 1939,1940,2916,6219 or 3966).
c.10: quarter step (for 2916 or 6219).
d.11: reserved.
(2).uni-polar :
a.00: two-phase-on full step.
b.01: half step.
c.10: reserved.
d.11: single-phase-on full step.
FASTPWM[5:0] : to set PWM duty cycle for table two motor phase of uni-polar.
FASTPWM
=0 1/64 duty
=1 2/64 duty
=2 3/64 duty
……
=63 64/64 duty
Note: If PHFREQ < 0FH,then PWM setting must < (PHFREQ+1)*4
72. Reg :69H (Read/Write)
Default : 00H
FSHDEC[7:0]: Set scan-finish deceleration slop steps(table three slope).
Note: can not be programmed to logic zero.
73. Reg :6AH (Read/Write)
Default : 00H
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Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
FMOVNO[7:0]: Set fast moving slop steps(table four slope).
Note: can not be programmed to logic zero.
(1). Two table moving :
speed
Scanning position
scan finished
Reg3D,3E,3F
Reg6A
Reg1F
Reg25,26,27
Reg21
Reg5E[7:5]
Reg5F
Reg69
Reg5E[4:0]
Reg6A
time
Go home
(2). One table moving :
speed
Scanning position
Reg3D,3E,3F
scan finished
Reg25,26,27
Reg21
Reg69
time
Reg5F
Reg5E[7:5]
Reg6A
Go home
74. Reg :6BH (Read/Write)
Default : 00H
B7 : MULTFILM
: to control motor phase idle to meet multi-film scan.
B6 :GPOM13
: set : output MOTORTGO.
: reset : output GPO13.
B5~4:GPOM12~11
: to select GPIO12~11 as Bi-polar motor driver V-ref input voltage in
order to control drive current.
Note : GPIO12: 1. Pull up by resister to indicate that ASIC turn on lamp power
whenever power on initial.
2. Pull down by resister to indicate that ASIC turn off lamp
power whenever power on initial.
3. This pin can control bi-polar motor driver
1939,1940,2916,6219 or 3955 Vref in order to control
Imax.current.
GPIO11: This pin can control bi-polar motor driver 1939,1940,2916,6219
or 3955 Vref in order to Control Imax. current.
42
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
B3
: Reserved.
B2
: Reserved.
B1~0:GPO18~17
: output GPO18,GPO17 ports.
75. Reg :6CH,6DH (Read/Write)
Default : 00H,00H
GPIO[16:1]
: GPIO16~1 outputs ports
76. Reg :6EH,6FH (Read/Write)
Default : 00H,00H
GPOE[16:1]
: GPO16~1 ports output enable set.
Set ‘1’ : output.
Reset ‘0’ : input.
77. Reg : 70H,71H (Read/Write)
Default:15H,17H
RSH[4:0]
: set CCD RS rising edge position.
RSL[4:0]
: set CCD RS falling edge position.
(1). Color,fine gray or fine line-art: 12 phase/pixel
0
1
2
3
4
5
6
7
8
9
10 11
0
1
2
3
4
5
6
7
8
9
10
11
4
0
1
2
3
4
5
0
1
2
3
4
5
5
6
7
8
9
10
11
0
1
2
3
4
CCD RS : RSH=08H RSL=0BH
(2).Fast gray or fast line-art : 6 phase/pixel
0
1
2
3
4
5
0
1
2
3
5
CCD RS : RSH=05H RSL=01H
78. Reg : 72H,73H (Read/Write)
Default:15H,17H
CPH[4:0]
: set CCD CP rising edge position.
CPL[4:0]
: set CCD CP falling edge position.
(1). Color,fine gray or fine line-art : 12 phase/pixel
5
6
7
8
9
10 11
0
1
2
3
4
CCD CP : CPH=0AH CPL=01H
43
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
(2).Fast gray or fast line-art : 6 phase/pixel
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
CCD CP : CPH=03H CPL=05H
79. Reg : 74H,75H,76H (Read/Write)
Default : 00H,00H,00H
CK1MAP[17:0] : CCD clock 1 bits mapping function.
80. Reg : 77H,78H,79H (Read/Write)
Default : 00H,00H,00H
CK3MAP[17:0] : CCD clock 3 bits mapping function.
81. Reg : 7AH,7BH,7CH (Read/Write)
Default : 00H,00H,00H
CK4MAP[17:0] : CCD clock 4 bits mapping function.
82. Reg : 7DH (Read/Write)
Default : 00H
B7: CK1NEG
: set: CCD clock1,clock2 output locate at negative edge position of system clock.
: reset : CCD clock1,clock2 output locate at positive edge position of system clock.
B6: CK3NEG
: set : CCD clock3 output locate at negative edge position of system clock.
: reset : CCD clock3 output locate at positive edge position of system clock.
B5: CK4NEG
: set : CCD clock4 output locate at negative edge position of system clock.
: reset : CCD clock4 output locate at positive edge position of system clock.
B4: RSNEG
: set : CCD RS output locate at negative edge position of system clock.
: reset : CCD RS output locate at positive edge position of system clock.
B3: CPNEG
: to set CCD CP output locate at negative edge position of system clock.
: reset : CCD CP output locate at positive edge position of system clock.
B2: BSMPNEG : set : AFE video sample output locate at negative edge position of system clock.
: reset : AFE video sample output locate at positive edge position of system clock.
B1: VSMPNEG : set : AFE dark sample output locate at negative edge position of system clock.
: reset : AFE dark sample output locate at positive edge position of system clock.
B0: DLYSET
: set : to enable VSMP and BSMP to delay output by 8.33ns unit
: reset : disable this function.
83. Reg : 7EH (Read/Write)
Default : 00H
B5 :GPOLED18
: set : GPIO 18 as LED outout.
: reset : GPIO18 as general I/O.
B4 :GPOLED17
: set : GPIO 17 as LED outout.
: reset : GPIO17 as general I/O.
B3 :GPOLED16
: set : GPIO 16 as LED outout.
: reset : GPIO16 as general I/O.
B2 :GPOLED15
: set : GPIO 15 as LED outout.
: reset : GPIO15 as general I/O.
B1 :GPOLED14
: set : GPIO 14 as LED outout.
: reset : GPIO14 as general I/O.
B0 :GPOLED13
: set : GPIO 13 as LED outout.
: reset : GPIO13 as general I/O.
44
Version 1.7
5
GL841 USB 2.0 2-in-1 Scanner Controller
84. Reg : 7FH (Read/Write)
Default : 00H
B7~6 :[1:0]BSMPDLY : to set BSMP output delay.
2’b00: no delay.
2’b01:delay 8.33ns
2’b10:delay 16.67ns
2’b11:delay 25ns.
B5~4 :[1:0]VSMPDLY : to set VSMP output delay.
2’b00: no delay.
2’b01:delay 8.33ns
2’b10:delay 16.67ns
2’b11:delay 25ns.
B3~0 :[3:0]LEDCNT : to set LED blinking speed.
The unit is 100ms.
85. Reg : 80H (Read/Write)
Default:00H
B7~6: VRHOME[1:0] : to set the Vref. of the motor driver IC for go-home moving.
B5~4: VRMOVE[1:0] : to set the Vref. of the motor driver IC for fast forward moving.
B3~2: VRBACK[1:0] : to set the Vref. of the motor driver IC for backward moving.
B1~0: VRSCAN[1:0] : to set the Vref. of the motor driver IC for scan forward moving.
86. Reg : 81H,82H (Read/Write)
Default:00H,00H
B8~0: ROFFSET[8:0] : to set R Channel Offset of the AFE for CIS color scan.
87. Reg : 83H,84H (Read/Write)
Default:00H,00H
B8~0: GOFFSET[8:0] : to set G Channel Offset of the AFE for CIS color scan.
88. Reg : 85H,86H (Read/Write)
Default:00H,00H
B8~0: BOFFSET[8:0] : to set B Channel Offset of the AFE for CIS color scan.
89. Reg : 87H (Read/Write)
Default:00H
B7
: Reserved.
B6
: YENB
: set: to enable PH_Y output of the YBIT.
: reset: to disable PH_Y output of the YBIT.
B5
: YBIT
: to output PH_Y status.
B4
: ACYCNRLC : set: to generate RLC/ACYC pulse to trigger WM8199 auto-cycling for
Line-by-line color scanning.
: reset: to disable this function.
B3
: ENOFFSET
: set: to select automatic offset configuration for CIS scanning.
: reset: to disable this function.
B2
: LEDADD
: set: enable true gray by controlling CIS RGB LED array.
: reset: normal gray by controlling CIS single color LED array.
B1
: CK4ADC
: set: to select ADCCLK output by CK4MAP setting.
: reset: to select ADCCLK output by default.
B0
: AUTOCONF : set: to enable automatic channel,offset configuration or or RLC/ACYC pulsing
for CIS color scan.
: reset: to disable these function.
Note: If YBIT=1,then YENB=1 PH_Y=1;YENB=0 PH_Y=0.
If YBIT=0,then YENB=1 PH_Y=0;YENB=0 PH_Y=1.
45
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
90. Shading mapping(Chunky for single bank)
Attribute
Resolution
Address[19:0]
600dpi
00000H~07FFFH
(DPIHW=00)
SIZE : 32k
1200dpi
00000H~0FFFFH
(DPIHW=01)
SIZE : 64k
2400dpi
00000H~1FFFFH
(DPIHW=10)
SIZE : 128k
Shading Mapping
91. Shading mapping(Planer)
Attribute
Resolution
Address[19:0]
RED
600dpi
CHANNEL
(DPIHW=00)
GREEN
00000H~029FFH
02A00H~053FFH
CHANNEL
BLUE
05400H~07DFFH
CHANNEL
RED
1200dpi
CHANNEL
(DPIHW=01)
GREEN
Shading Mapping
00000H~054FFH
05500H~0A9FFH
CHANNEL
BLUE
0AA00H~0FEFFH
CHANNEL
RED
2400dpi
00000H~0A7FFH
CHANNEL
(DPIHW=10)
GREEN
0A800H~14FFFH
CHANNEL
BLUE
15000H~1F7FFH
CHANNEL
46
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
92. Slope Curve Table Mapping :
Attribute
Resolution
600DPI
Table no.
Address[19:0]
TABLE 1
08000 ~ 081FF
TABLE 2
08200 ~ 083FF
TABLE 3
08400 ~ 085FF
TABLE 4
08600 ~ 087FF
TABLE 5
08800 ~ 089FF
TABLE 1
10000 ~ 101FF
TABLE 2
10200 ~ 103FF
TABLE 3
10400 ~ 105FF
TABLE 4
10600 ~ 107FF
TABLE 5
10800 ~ 109FF
TABLE 1
20000 ~ 101FF
TABLE 2
20200 ~ 203FF
TABLE 3
20400 ~205FF
TABLE 4
20600 ~207FF
TABLE 5
20800 ~209FF
(DPIHW=00)
Slope Curve Table
1200DPI
(DPIHW=01)
2400DPI
(DPIDW=10)
47
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
93. Image Buffer Mapping :
DRAM SIZE
Resolution
Address[19:0]
600DPI
DRAM/SRAM
(DPIHW=00)
4M BITS X 1
1200DPI
09000H~3FFFFH
11000H~3FFFFH
(DPIHW=01)
2400DPI
21000H~3FFFFH
(DPIHW=10)
DRAM
600DPI
4M BITS X 2
(DPIHW=00)
or
1200DPI
8M BITS
(DPIHW=01)
SRAM
09000H~7FFFFH
11000H~7FFFFH
2400DPI
21000H~7FFFFH
(DPIHW=10)
600DPI
DRAM
(DPIHW=00)
16M BITS
1200DPI
09000H~FFFFFH
11000H~FFFFFH
(DPIHW=01)
2400DPI
21000H~FFFFFH
(DPIHW=10)
48
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
8 Package
QFP-128L (14*20 mm, F/P: 3.2 mm):
SYMBOLS
MIN(mm)
NOM(mm)
A1
0.25
0.35
A2
2.57
2.72
b
0.10
0.20
C
0.10
0.15
D
13.90
14.00
E
19.90
20.00
e
0.50
Hd
17.00
17.20
He
23.00
23.20
L
0.65
0.80
L1
1.60
Y
0
Θ
MAX(mm)
0.45
2.87
0.30
0.20
14.10
20.10
17.40
23.40
0.95
0.08
12
He
A2
A1
Y
L1
Hd
D
D
E
b
e
0.08(0.003)
M
H
49
Version 1.7
GL841 USB 2.0 2-in-1 Scanner Controller
9
Revision History
Rev
1.7
Date
20020814
Description
Electrical characteristics (TSTQ and Tamb) revised (p.12)
Package description updated (p.49)
Revision History item added (p.50)
50
Version 1.7