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DP83821 - 10/100/1000 Mb/s PCI Ethernet Network Interface Controller

Datasheet Summary

Description

DP83821 is a single-chip 10/100/1000 Mb/s Ethernet Controller for the PCI bus.

It is targeted at highperformance adapter cards and mother boards.

The DP83821 fully implements the V2.2 33 MHz, 32-bit PCI bus interface for host communications with power management support.

Features

  • IEEE 802.3 Compliant, 33 Mhz, 32-bit PCI V2.2 MAC/BIU supports data rates from 1 Mb/s to 1000 Mb/s. This allows support for traditional 10 Mb/s Ethernet, 100 Mb/s Fast Ethernet, as well as 1000 Mb/s Gigabit Ethernet.
  • Flexible, programmable Bus master - burst sizes of up to 256 dwords (1024 bytes).
  • BIU compliant with PC 97 and PC 98 Hardware Design Guides, PC 99 Hardware Design Guide draft, ACPI v1.0, PCI Power Management Specification v1, OnNow Device Class Power Man.

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Datasheet preview – DP83821

Datasheet Details

Part number DP83821
Manufacturer National Semiconductor
File Size 1.17 MB
Description 10/100/1000 Mb/s PCI Ethernet Network Interface Controller
Datasheet download datasheet DP83821 Datasheet
Additional preview pages of the DP83821 datasheet.

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Full PDF Text Transcription

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DP83821 10/100/1000 Mb/s PCI Ethernet Network Interface Controller PRELIMINARY February 2001 DP83821 10/100/1000 Mb/s PCI Ethernet Network Interface Controller — Virtual LAN (VLAN) and long frame support. VLAN tag insertion support for transmit packets. VLAN tag detection and removal for receive packets — 802.3x Full duplex flow control, including automatic transmission of Pause frames based on Rx FIFO thresholds — IPv.4 checksum task off-loading. Supports checksum generation and verification of IP, TCP, and UDP headers — 802.1D and 802.1Q priority queueing support. Supports multiple priority queues in both transmit and receive directions.
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