GL848 datasheet(14/85 Pages) GENESYS

14 / 85 page

GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF

Page 14

CIS Green LED array control

LED_B/ RXD /MOTORDIR/GPO28

CIS Blue LED control;

RS232 receive data input;

Motor direction control for moving TMA or ADF application;

General Purpose Input/Output.

OP0~7

AFE digital data input.

SEN/SLOAD

Serial interface load pulse.

SCLK

Serial interface clock output.

SDI

Serial data output.

SDO

Serial data input.

VSMP/CDSCLK2

Wolfson type : Video sample synchronization pulse.

Analog Device : CDS Data level sampling clock.

MCLK/ADCCLK

Wolfson type : Master clock.

Analog Device : A/D Converter sampling clock.

DBUS0~15

DRAM data bus

ABUS0~12

DRAM address bus

RASJ

SDRAM row address strobe

CASJ

SDRAM column address strobe

WEJ

SDRAM write enable

BANK0-1

SDRAM bank select

CKE

SDRAM clock enable

RAMCLK

SDRAM clock

Clock input for crystal (12MHz)

Clock output for crystal

EXTRST_

Hardware reset input

AVDD1, AVDD2, AVDD3

Analog power input for USB2.0 transceiver 3.3V

AGND1, AGND2, AGND3

Analog ground input for USB2.0 transceiver

DVCC1

Digital power input for USB2.0 controller 1.8V

DGND1, DGND2

Digital ground input for USB2.0 controller.

VccCore1, VccCore2, VccCore3,

VccCore4

Digital power input for scanner controller logic core 1.8V

GndCore1, GndCore2, GndCore3, GndCore4

Digital ground input for scanner controller logic core.

VccIO1, VccIO2, VccIO3, VccIO4, VccIO5,

VccIO6

Digital power input for scanner controller I/O pads 3.3V

GndIO1, GndIO2, GndIO3, GndIO4, GndIO5,

GndIO6

Digital ground input for scanner controller I/O pads.

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