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 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] 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 FC_Mode0 FC_REQ0 FC_ACK0 RESET SYSCLK RX0_RP RX0_RE RX0_WP RX0_WE IRXD0[7:0] FC_ACK0 FC_REQ0 FC_Mode0 MII TXD Interface GTX0_CLKO GTX0_CLKI TX0_CLK TXD0[3:0] TX0_ER TX0_EN CRS0 COL0 TX0_RP TX0_RE ITXD0[7:0] TX0_WP TX0_WE TX0_REQ TX0_LEN TX0_RDY TX0_DTS SYSCLK RX0_RP RX0_RE RX0_WP RX0_WE IRXD0[7:0] BUF_Switch RXB0 RX_SREQ[3:0] RX_SPACK[3:0] RX_SDACK[3:0] RXB[3:0] RXB[3:0] TXD_Buf0 SYSCLK TX0_RP TX0_RE ITXD0[7:0] TX0_WP TX0_WE TXB0 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 Data_CTR RXD_Buf0 TX_CTR0 Duplex_Mode0 Data_Rate0[1:0] 2 RX0_SPACK RX0_SDACK REG_CTR 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] 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] 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] 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 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 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 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 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 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 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. 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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. © Atmel Corporation 2004. All rights reserved. Atmel® 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