gl846 Genesys Logic, gl846 Datasheet - Page 45

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gl846

Manufacturer Part Number
gl846
Description
High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf
Manufacturer
Genesys Logic
Datasheet

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Part Number:
GL846
Manufacturer:
GENESYS
Quantity:
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©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 4Fh
Offset 50h ……..……..…………………..………..….………..……....…..….…. Default value = 8’h00
Offset 51h ……..……..…………………..………..….………..….…..…..…..…. Default value = 8’h00
Offset 52h ……..……..…………………..………..….………..….…..…..…..…. Default value = 8’h00
7-0 SCANCNT [7:0] Line number which scanner has finished.
SPI_M_BSY SLAVEERR
7-6 RESERVED
5-0 FERDA [5:0]
7-6 RESERVED
5-0 FEWRA [5:0]
7-5 RESERVED
SCANCNT7 SCANCNT6 SCANCNT5 SCANCNT4 SCANCNT3 SCANCNT2 SCANCNT1 SCANCNT0
5 DOGON
7
6
4 ROMBSY
3 LCMBSY
2 TX232BSY
1 RX232BSY
0 RXREADY
SPI_M_BSY
SLAVEERR
R
R
X
X
X
X
X
X
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
X
X
X
X
X
X
R
R
Indicate that the SPI data output is busy or not when SPI_MOT is set to “1” and
work on 3972 of motor driver IC.
Reserved
0 Lamp dog hasn’t occurred
1 Lamp dog has occurred
0 EEPROM is ready for access.
1 EEPROM (93C46) is busy and can not be accessed.
0 LCM interface is ready for access.
1 LCM interface is busy and can not be accessed.
0 RS232 transmitter is ready for access.
1 RS232 transmitter is busy and can not be accessed.
0 RS232 receiver is ready for access.
1 RS232 receiver is busy and can not be accessed.
0 The receiving has not been completed.
1 Has received data number specified in Reg 88 from RS232.
-
Address of control register of front-end in read operation.
Before reading control register of front-end (Reg 46, 47), designers have to
specify address of the control register by writing address to this port.
-
Address of control register of front-end in write operation.
Before writing control register of front-end (Reg 3A, 3B), designers have to
specify address of the control register by writing address to this port.
-
FEWRA5
FERDA5
DOGON
R/W
R/W
R
R
X
X
ROMBSY
FEWRA4
FERDA4
RHI4
R/W
R/W
R/W
R
R
LCMBSY TX232BSY RX232BSY RXREADY
FEWRA3
FERDA3
RHI3
R/W
R/W
R/W
R
R
FEWRA2
FERDA2
RHI2
R/W
R/W
R/W
R
R
FEWRA1
FERDA1
RHI1
R/W
R/W
R/W
R
R
FEWRA0
FERDA0
RHI0
Page 45
R/W
R/W
R/W
R
R

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