AT79C1010

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. 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