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| Features * * * * * * * * * * 4 10/100M Ethernet MII Ports Meet Fast Ethernet Requirements Provides Packets Switching Function Between 4 Ethernet Ports Crossbar Switching Engine Performs Switching at Wire Speed Full/Half Duplex Mode Interface Supported Flow Control for Full-duplex Supported MAC Address Table is Integrated in the Single-chip MAC Address Aging is Supported Input/Output Buffer Memory Embedded for Each Port MDIO Interface is Supported Available in a Variety of Packages Depending on Customer Requirements Description The AT79C1010 is an Ethernet switch controller that performs Layer 2 Switching according to IEEE 802 standards. It adopts the crossbar architecture to complete the function of packets switching between 4 MII ports. The mechanism of this switch is "learning & forwarding", and the embedded MAC address table ensures the implementation of this function. It can attain wire speed when it's used as a fast Ethernet switch. 4-port Layer 2 Unmanaged Switched Ethernet Controller AT79C1010 Summary 3433AS-NETST-2/04 Note: This is a summary document. A complete document is available under NDA. For more information, please contact your local Atmel sales office. Figure 1. AT79C1010 Block Diagram Core_Logic RX_CTR0 AP_REQ0 AP_ACK0 MAC_Bus0[31:0] AP_Cancel0 Data_Rate0[1:0] AP_END0 Duplex_Mode0 PortData0[2:0] SYSCLK RESET MII RXD Interface RX0_SREQ RX0_CLK RXD0[3:0] RX0_ER RX0_DV COL0 RX0_SPACK RX0_SDACK Addressing SYSCLK AP_REQ[3:0] MAC_Bus0[31:0] MAC_Bus1[31:0] MAC_Bus2[31:0] MAC_Bus3[31:0] AP_ACK[3:0] AP_Cancel[3:0] AP_END[3:0] PortData0[2:0] PortData1[2:0] PortData2[2:0] PortData3[2:0] REG_CTR Mgmt_ITF SYSCLK MGMT_END MGMT_EN MDIO PRE_SUP MDC MEMT_RW MGMT_DATA[15:0] MGMT_REGAD[4:0] MGMT_PHYAD[4:0] Mgmt Interface to PHY chip REG_TAB FC_Mode0 FC_REQ0 FC_ACK0 RXD_Buf0 RX0_RP RX0_RE RX0_WP RX0_WE IRXD0[7:0] SYSCLK RX0_RP RX0_RE RX0_WP RX0_WE IRXD0[7:0] Data_CTR BUF_Switch RX_SREQ[3:0] RX_SPACK[3:0] RX_SDACK[3:0] REG_EN REG_RW REG_REGAD[3:0] REG_DATA[15:0] Link_Status[3:0] Data_Rate0[1:0] Data_Rate1[1:0] Data_Rate2[1:0] Data_Rate3[1:0] Duplex_Mode[3:0] RXB0 RXB[3:0] RXB[3:0] SW0_EN[1:0] SW1_EN[1:0] SW2_EN[1:0] SW3_EN[1:0] TXB[3:0] SW0_EN[1:0] SW1_EN[1:0] SW2_EN[1:0] SW3_EN[1:0] TX_REQ[3:0] TX_LEN[3:0] TX_RDY[3:0] TX_DTS[3:0] RESET SYSCLK TX_CTR0 TX0_RP TX0_RE ITXD0[7:0] TX0_WP TX0_WE TX0_REQ TX0_LEN TX0_RDY TX0_DTS Duplex_Mode0 Data_Rate0[1:0] FC_ACK0 FC_REQ0 FC_Mode0 MII TXD Interface GTX0_CLKO GTX0_CLKI TX0_CLK TXD0[3:0] TX0_ER TX0_EN CRS0 COL0 SYSCLK TX0_RP TX0_RE ITXD0[7:0] TX0_WP TX0_WE TXD_Buf0 TXB0 SPI_ITF SPI Bus Interface PR_BUSY SPI_MISO LR_BUSY SPI_MOSI SPI_SCK SPI_ACK SPI_SS SPI_REQ SPI_RW SPI_DS SPI_DATA SPI_REGAD[6:0] SPI_BM[15:0] 2 AT79C1010 3433AS-NETST-2/04 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel: (33) 4-76-58-30-00 Fax: (33) 4-76-58-34-80 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel: (33) 4-42-53-60-00 Fax: (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel: (44) 1355-803-000 Fax: (44) 1355-242-743 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Literature Requests www.atmel.com/literature Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life support devices or systems. (c) Atmel Corporation 2004. All rights reserved. Atmel(R) and combinations thereof, are the registered trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be the trademarks of others. Printed on recycled paper. 3433AS-NETST-2/04 |
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