IBM PC 300PL User Manual download pdf (Page 15)

Chapter 2. System board features

Features provided by USB technology include:

 Support for hot-pluggable devices

 Support for concurrent operation of multiple devices

 Suitability for different device bandwidths

 Support for up to five meters length from host to hub or from hub to hub

 Guaranteed bandwidth and low latencies appropriate for specific devices

 Wide range of packet sizes

 Limited power to hubs

For information on the connector pin assignments for the USB interface, see “USB port connectors” on

page 33.

Low pin count bus

The low pin count (LPC) bus allows a connection of the ISA and X-Bus devices such as Super I/O. The

PC 300PL Personal Computer uses the National Semiconductor PC87360 Super I/O chip. The PC87360

chip includes the following:

 Floppy disk controller

 Keyboard and mouse controller

 IEEE 1284 parallel port

 Two UART serial ports

 Wake on LAN support

 General purpose input/output (GPIO) ports

 PC98 compliance

 ACPI compliance

Diskette write protection can be enabled or disabled by a programmable setting in the LPC I/O. This

setting is accessible through the Configuration/Setup Utility program.

Video subsystem

The PC 300PL Personal Computer comes with one of the following graphics solutions:

 NumberNine S3 Savage4 Accelerated Graphics Port (AGP) 2X adapter with 8 MB 110 MHz SDRAM

and a 15-pin SVGA connector

 NumberNine S3 Savage4 Extreme AGP 4X adapter, with 16 MB 166 MHz SDRAM and a converter for

a 15-pin VGA displays

The Savage4 graphics accelerator supports the following features:

 128-bit 2D graphics engine

 High-performance 2D/3D video accelerator

 3D rendering

 Motion video architecture

 High-speed memory bus

 Flat panel desktop monitor support

 Full software support

 ACPI and PCI power management

 PCI 2.2 bus support, including bus mastering

 300 MHz RAMDAC with gamma correction

 I2C serial bus and flash ROM support

 2.5 V core with 3.3V/5V tolerant I/O

 Hardware and BIOS support for VESA timings and DDC monitor communications

Chapter 2. System board features 7

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IBM PC 300PL User Manual Page 15

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