Silicon Motion SM718 User Manual

Sm718, Lynxse+ embedded graphics processor

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The SM718 is a PCI 2D multimedia mobile display controller device, packaged in a 320-pin BGA. Designed to
complement needs for the embedded industry, it provides video and 2D capability. To help reduce system costs, it
supports a wide variety of I/O, including analog RGB and digital LCD Panel interfaces, two Zoom Video interfaces, and
Pulse Width Modulation (PWM). There are additional GPIO bits that can be used to interface to external devices as well.

The 2D engine includes a front-end color space conversion with 4:1 and 1:8 scaling support. The video engine supports
two different video outputs (Dual Monitor), at 8-bit, 16-bit, or 32-bit per pixel and a 3-color hardware cursor per video
output. The LCD panel video pipe supports a back-end YUV color space conversion with 4:1 and 1:212 scaling. A Zoom
Video (ZV) port is also included to interface to external circuitry for MPEG decode or TV input.

Thin Client
Server
IPC / POS / MFP / DVR
Factory Automation (HMI)
Medical Device

Handheld / Portable Device
Gaming Machine
Test Instrument
Digital Signage
All Other Embedded Graphics Applications

LynxSE+ Embedded Graphics Processor

APPLICATIONS

FEATURES

SM718

16/32-bit Host Bus & PCI Architecture

16MB Integrated Video DDR Memory

Low Power Consumption < 1W
Cost-Effective Multi-Display/Panel Supports

Quick-Rotation Features

- Allow for 90°, 180°, and 270° rotation of on-screen images

Serial EEPROM Interface


- X86/PCI processors
- ARM, MIPS, SuperH processors

- Embedded 16MB DDR only
- External up to 64MB DDR (64-bit I/F)

- Dual 300MHz DAC supports up to 1920x1440 resolution
- Dual 18-bit DVO interface for TMDS or LVDS transmitter

supports up to 1920x1440 resolution

- Independent resolution and refresh rates for dual display types

2D Graphic Accelerator

Video Display Layers

Zoom Video Port

DMA Controller
GPIO/I2C/SSP Interface

- 128-bit 2D graphic engine
- ROP3's, BitBLT, transparent BLT, pattern BLT, color

expansion, and line drawing

- YUV-16/32-bit RGB conversion

- Support 7 layers of display frames (2 hardware cursors,

primary graphic, video, video alpha, alpha, and secondary
graphics)

- Two 8-bit ports or one 16-bit video capture port supports

ITU601 AND ITU 656 specifications UV-16/32-bit RGB
conversion

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