Acer Aspire 1420P Aspire 1420P and 1820PT Service Guide - Page 29

LAN Interface LAN Chipset Package Features Item Keyboard Item Keyboard Controller Total number of keypads Windows logo key Internal & external keyboard work simultaneously Features Specification Atheros AR8131L 48pin QFN • It is an ultra-high performance, ultralow cost, and ultra- low power fully integrated 10/100/1000 Mbps NIC/LOM Ethernet. • The AR8131L combines a 10/100/1000BASE-T GbE media access controller (MAC), a triplespeed Ethernet physical layer transceiver (PHY), and a PCI Express bus interface. • The AR8131L is compliant with IEEE 802.3u specification for 10/100 Mbps Ethernet and IEEE 802.3ab specification for 1000 Mbps Ethernet. • The AR8131L device combines pulse shaping, Tx/Rx PCS, echo canceller, NEXT canceller, equalizer, decoder, and timing recovery functions to deliver robust signal performance in noisy environments. • The AR8131L GbE controller supports checksum off-load features for IP, TCP, and UDP, lowering CPU utilization and optimizing network performance. Specification Winbond WPCE775LA0DG US: 86 UK: 86 UI: 86 GERMAN: 86 Yes Plug USB keyboard to the USB port directly: Yes • Plug USB keyboard to the USB port directly: Yes Media Card Reader Chipset Item Features Specification Alcor AU6433 • Fully compatible with USB2.0 High Speed and backward compatible with USB1.1 specifications • Supports multiple flash card interfaces, including SD/ MMC/xD/MS. • Supports single LUN • 48-pin LQFP Chapter 1 19