gl846 Genesys Logic, gl846 Datasheet - Page 65

• 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 AAh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
Offset ABh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
Offset ACh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
7-6
Offset ADh ……..……..………………....………..…………..….………..…..…. Default value = 8’h00
7
6
5
5-4 VRMOVE [3:2] Vref of the motor driver IC for fast forward moving
3-2 VRBACK [3:2]
4-0 SWSH [4:0]
RISC_INT_O
7-0 GPO [35:28]
7-0
7-6 GPOM9
6-4 MULSTOP [2:0] Select stop time of motor start/stop. The stop time = STOPTIM * 2
VRHOME3 VRHOME2 VRMOVE3 VRMOVE2
RESERVE7
2 TB3TB1
1 TB5TB2
3 NODECEL
0 FIX16CLK
GPOM9
GPO35
R/W
R/W
R/W
R/W
R/W
RESERVE7
VRHOME [3:2] Vref of the motor driver IC for go-home moving
RISC_INT_O
SC_INT_O
RESERVE5
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
MULSTOP2 MULSTOP1 MULSTOP0 NODECEL
SC_INT_O
RESERVE6
GPO34
[7:0]
R/W
R/W
R/W
R/W
R/W
GPO35~28 output ports.
Output internal RISC CPU interrupt signal to external MCU through
GPIO26 for handshake handling
Output internal scanner controller interrupt signal to external MCU to notice
interrupt events of scanner controller occurs
This bit is reserved for special application
To set the distance from SW to TG for NEC/Toshiba CCD. The width is
SWSH[4:0]*2
The 8 bits registers are reserved for special application
0 Select GPIO9 as general purpose I/O.
1 Select GPIO9 as V-ref control of bipolar motor driver IC to control Imax
0 Motor decelate when carriage touch home sensor
1 Motor doesn’t decelerate when carriage touch home sensor
0 Don’t replace.
1 Use table 1 of motor table to replace table 3.
1 Use table 2 of motor table to replace table 5.
To enable 16 system clocks/pixel recover function
Vref of the motor driver IC for backward moving when the image buffer is full
0 Don’t replace.
RESERVE5
RESERVE5
GPO33
R/W
R/W
R/W
R/W
R/W
TGSTIME
RESERVE4
SWSH4
GPO32
R/W
R/W
R/W
R/W
R/W
RESERVE3
VRBACK3
SWSH3
GPO31
R/W
R/W
R/W
R/W
R/W
RESERVE2
VRBACK2
SWSH2
TB3TB1
GPO30
R/W
R/W
R/W
R/W
R/W
RESERVE1
VRSCAN3
SWSH1
TB5TB2
GPO29
R/W
R/W
R/W
R/W
R/W
MULSTOP
FIX16CLK
RESERVE0
VRSCAN2
SWSH0
GPO28
Page 65
R/W
R/W
R/W
R/W
R/W