Data Sheet BCM53242M Managed Switch with 24 FE Ports + 4-GbE Interface GENERAL DESCRIPTION FEATURES The BCM53242M is a ninth-generation RoboSwitch Ninth-generation L2+ Fast Ethernet switch with two design based on the field-proven BCM5324 device. This GMII/RGMII/TBI interfaces. integrated 0.13-CMOS device combines all the 24-port 10/100 transceivers for TX/EFX. functions of a high-speed switch system including Advanced Cable Diagnostic support. packet buffers, PHY transceivers, Media Access 25 10/100 MACs. Controllers (MACs), address management, and a Two Gigabit MACs. nonblocking switch fabric. It is designed to be fully 3-Mbit (384 KB) packet buffer and control memory. compliant with the IEEE 802.3 and IEEE 802.3x Management Port with RvMII/MII interface. specifications, including the MAC control PAUSE frame, Nonblocking switch fabric for 24 FE + 2 GbE ports. auto-negotiation and with all industry-standard Jumbo frame support up to 2048 bytes. Ethernet and Fast Ethernet devices. Flexible TCAM-based Compact Field Processor for packet classification and filtering. The BCM53242M contains 24 full-duplex 10Base-T/ Packet Remarking, VID Replacement. 100Base-TX Fast Ethernet transceivers with Advanced 802.1p PCP, DSCP remarking. Cable Diagnostics support. Each performs all physical Optimized for managed switch design. layer interface functions for 10Base-T Ethernet on 802.1p, Port, MAC, Protocol, Customer VID, and Category 3, 4, or 5 Unshielded Twisted Pair (UTP) cable DiffServ (IPv4/IPv6) based QoS packet classification with and 100Base-TX Fast Ethernet on Category 5 UTP cable. four priority queues. The BCM53242M has two GMII/RGMII/TBI interfaces Port-based VLAN. that provide flexible 10/100/1000Base-TX/FX 802.1Q-based VLAN with 4K entries. connectivity. An additional MAC is included for CPU MAC-based VLAN with 512 entries. connection via RvMII/MII interface. Protocol-based VLAN with 16 entries. The BCM53242M has a rich feature set suitable for VLAN Translation. streaming VoIP, video, and data traffic for multimedia Double tagging. applications. The BCM53242M supports up to four QoS UNI/NNI configuration per port for edge access queues per port. Traffic QoS can be assigned based on application. Port-ID, MAC Address, 802.1p or DiffServ. Together with QinQ packet transmission through NNI port. 4K entries, 802.1Q VLAN, 802.1x EAPOL protocol Programmable global SP TPID. filtering, MAC-based link aggregation with dynamic Programmable SP VID through flexible mapping. failover, per-port bandwidth/rate control, MAC address Link Aggregation support with automatic link fail-over. locking, and IGMP snooping at Layer 3 allow system Programmable per-port Bandwidth/Rate control. vendors to build advanced L2+ switch systems for the Protected port security feature. Multitenant/Multidweller Unit (MTU/MDU) Port mirroring (Ingress/Egress), IGMP Layer 3. snooping markets.The BCM53242M provides 70+ on-chip MIB and MLD snooping. counters to collect receive and transmit statistics for Spanning Tree support (802.1d/1s/1w). each port. Supports 802.1x EAPOL higher layer protocol. Programmable Broadcast, Multicast, and Unknown Unicast storm control.8K MAC addresses with automatic learning and aging. MDC/MDIO and SPI interfaces. 4K-entry Multicast Address table. Hardware supports SNMP, RMON. Internal oscillator simplifies design and reduces cost. JTAG. 2.5V and 1.2V, typical power consumption: ~ 4.3W. 400-pin PBGA package. 53242M-DS302-R 5300 California Avenue Irvine, CA 92617 Phone: 949-926-5000 Fax: 949-926-5203 July 28, 2011 Broadcom ConfidentialBCM53242M Data Sheet Revision History LEDCLK Bias LED Controller RDAC LEDDATA 5 RD+/- 23:0 10BASE-T/ JTAG MACs 100BASE-TX Global TD+/- 23:0 CK25 Transceivers Functions RST TXD 3:0 3 MB Shared TXEN Packet / TXER Control Buffer TXC RXD(3:0) MAC / RXDV MII Compact CRS Controller Field RXER Processor COL RXC MDC Address MDIO Management GMII(0:1) GTXCLK GMII (0:1) TXD 7:0 GMII(0:1) TX EN MIB Counters GMII(0:1) TX ER TBI (0 :1)RBC 1:0 GMAC GMII(0:1) RXC SCK GMII/RGMII/ SPI / : GMII (0 1) RXD 7:0 TBI EEPROM SS GMII (0:1) RXDV Controllers Interface MOSI GMII (0:1) RXER MISO GMII(0:1) CRS Internal GMII (0:1) COL Regulators GMII (0:1) SD Figure 1: Functional Block Diagram BROADCOM July 28, 2011 53242M-DS302-R Page 2 Broadcom Confidential