User manual

POC-175 User Manual 20
Chapter 3 Graphic chipset Setup
3.1 Introduction
The POC-175 has an onboard VGA interface. The specifications and fea-
tures are described as follows:
3.1.1 Chipset
The POC-175 uses Mobile Intel® 915GM Express chipset for its graphic
controller. It supports SDVO devices and CRT monitors. The Mobile
Intel® 915GM Express chipset is a component of Intel® Centrino®
mobile technology. Featuring the Intel® Graphics Media Accelerator
900, the 915GM chipset enables twice the graphics performance of the
previous generation of platforms based on the Intel® 855GME chipset.
3.1.2 Display memory
The maximum display memory is based on the total system memory. 1
MB or 8 MB of pre-allocated memory is supported.
3.1.3 LVDS transmitter
The POC-175 uses a Chrontel CH7308A for driving its LCD panel. The
CH7308A is a display controller device, which accepts digital graphics
input signals, upscales, encodes, and transmits data through an LVDS
transmitter to an LCD panel. The CH7308A operates at pixel rates of up
to 140MHz, and supports 18-bit/24-bit LCD panels.
3.1.4 Display types
A CRT and panel display can be used simultaneously. The POC-175 can
be set in one of three configurations: CRT only, LVDS only, both CRT
and LFP (LVDS). The system is initially set to simultaneous display
mode—CRT and LFP (BIOS default setting).
The analog CRT DAC interface has a DDC2B compliant 24-bit RAM-
DAC that supports a maximum DAC frequency of 400 MHz, and
resolution up to 2048 x 1536.
3.2 Installation of Graphic Driver
Complete the following steps to install the SVGA driver. Follow the pro-
cedures in the flow chart that apply to the operating system that you are
using within your POC-175.