- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄381492 > AT79C1020 (Atmel Corp.) 4-port Layer 2 10/100/1000Mbps Unmanaged Switched Ethernet Controller PDF資料下載
參數(shù)資料
| 型號(hào)： | AT79C1020 |
| 廠商： | Atmel Corp. |
| 英文描述： | 4-port Layer 2 10/100/1000Mbps Unmanaged Switched Ethernet Controller |
| 中文描述： | 4端口的2層個(gè)10/100/1000Mbps非網(wǎng)管型交換式以太網(wǎng)控制器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 33K |
| 代理商： | AT79C1020 |
Features
Supports Four 10/100/1000 Mbps Ethernet Ports with GMII/MII Interface
IEEE 802.3ab CSMA/CD Compliant
Full and Half Duplex Mode of Operation
Speed and Duplex Mode Auto-negotiation Through MDIO
Self-address Learning Mechanism Supports 512-MAC Addresses
Automatic Address Aging with 300 seconds Default
512-kbit Packet Buffer Memory Embedded
Serial Port Interface Employed to Communicate with MCU
IEEE 802.3ab Flow Control for Full Duplex Operation
Supports Store-and-Forward Mode of Operation
0.18 Micron, 1.8V CMOS Technology Packaged in 160-pin PQFP
3.3V I/O
Available in a Variety of Packages Depending on Customer Requirements
Description
This Layer 2 Switch provides an ideal solution for the design of unmanaged full wire-
speed multi-port Gigabit Ethernet (GbE) switches. Each port supports either
10/100/1000 Mbps data rate. Flow controls, back pressure in half-duplex mode and
PAUSE frame in full-duplex mode are employed to solve the HOL (Head of Line)
blocking.
This Layer 2 Switch integrates four half/full duplex mode 1000 BASE Gigabit Ethernet
MACs, wire speed switching engines, MAC address based address parsing algorithms
and packet buffer memory.
Figure 1.
Ethernet Level 2 Switch Block Diagram
Switch
Fabric
Request
Control
Signals
Switch Core
Address Parse
Module
Packet Buffer
(48 kByte)
Management
Interface
(SPI, MDIO)
Mux
DataRate
FIFO
GMI
MII
GMII
RXD
(RX_CLK)
TXD_nG
(TX_CLK)
TXD_G
(SYSCLK)
MAC0, 1, 2 & 3
SPI/MDIO
Address
Port Num
Packet Out
Packet In
Ack
4-port Layer 2
10/100/1000Mbps
Unmanaged
Switched Ethernet
Controller
AT79C1020
Summary
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.
3434BS–NETST–3/04
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT79C1030 | 8-Port Gigabit Ethernet CoS Switch |
| AT80C5112 | DC-DC Converter, 15Watt, Input VDC: ?9~36, Output VDC: 12, Max Output Current(A): 1.25, Package: 2x1, Isolation(VDC): 1500, Operating Temp. -40??C to +75??C, Low Ripple & Noise, High Efficiency up to 85%, Low Profile Metal Package, Continuous Auto-Recovery, Single & Dual Ouput Regulated |
| AT83C5112 | 8-bit Microcontroller with A/D Converter |
| AT87C5112 | 8-bit Microcontroller with A/D Converter |
| AT80C51RB2-3CSCM | 80C51 High Performance ROM 8-bit Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT79C1030 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Port Gigabit Ethernet CoS Switch |
| AT-7S63A | 制造商:Panasonic Industrial Company 功能描述:Amorphs.Si Solar cell,Film,15.0V-134.0mA |
| AT-7S64A | 制造商:Panasonic Industrial Company 功能描述:Amorphs.Si Solar cell,Film,15.0V-269.0mA |
| AT8 | 制造商:Greenlee Textron Inc 功能描述:ADAPTONER 8 制造商:Greenlee Textron Inc 功能描述:ADAPTONER, 8 (AT8) 制造商:ADVANCE TAPES INTERNATIONAL 功能描述:LANE TAPE GREEN 33M |
| AT-8 | 制造商:Thomas & Betts 功能描述:Universal Recessed Box And Cover |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。