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Genesys Logic's single-chip GL126 is a high speed, high performance, low cost and rich scalability controller for sheet-fed and flatbed scanner. It successfully integrates scanner function ASIC and USB 2.0 interface controller into one single-chip. With its high performance design architecture, GL126 is not only ready for supporting CIS or CCD image sensors (600, 1200, 2400, 3200, 3600, 4800 and 9600dpi resolution) that are used in flatbed, transparency or sheet-fed scanners, but is able to co-work with unipolar or bipolar stepping motors. Advanced features of GL126 include five motor acceleration/ deceleration curve tables for high speed motor moving.

Highly integrated scanner controller chip (2-in-1; Scanner Controller and USB 2.0 Interface)
USB 2.0 High Speed (480Mbit) compliant
Designed for flatbed , transparency or sheet-fed scanners
Supports fast ADF document scanner
Embedded RISC CPU for USB protocol
12MHz low frequency clock input for better EMI
Adjustable working clock of scanner controller for different usage (24M, 30M, 40M, 48M, 60M and 80MHz)
Available sensor types: 600, 1200, 2400, 3200, 3600, 4800 and 9600 dpi color CIS or CCD
Supports two scanning types: pixel-by-pixel (pixel rate), line-by-line (line rate)
Support 24-bit color, 8-bit gray, 48-bit color, 16-bit gray and 1-bit line-art
16 bits white/dark shading and 16 bits Gamma correction
Fine CDS sampling adjustment to avoid the digital noise influence (8.33ns adjustment)
Digital average and hardware deletion for various resolutions
Hardware deletion for various resolutions (from 9600~1dpi with 1dpi decrement)
Supports 1M*16, 4M*16, 8M*16, 16M*16 and 32M*16 SDRAM
Supports up to 1 G bits size SDRAM (implements two SDRAM)
Supports 5 acceleration/deceleration motor tables for high speed motor moving and wall hitting protection
Supports controllable bipolar motor in full, half, quarter and eighth steps moving
Supports V-reference automatic control for motor driver ICs
Programmable dummy lines to resolve start/stop (discontinuous) problem
Watchdog protection for motor and ASIC
Supports 32 GPIO pins and 7 GPO pins for I/O controls
Supports LED blinking
Supports back-scanning
Supports multi-film scanning
Support R, G and B LED controls for CIS scanning
Support any motor driver IC through a phase table programmed by software
PWM control during motor stopping to reduce power consumption when scanner Start/Stop occurs
Supports 8-bit of Wolfson and ADI AFE interface
Supports white LED with PWM control for light source
Supports 1-ch and 3-ch CIS sensors
Supports two CIS/CCD sensors for duplex scanning
Supports external MCU with SPI interface

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