Data Sheet BCM53125S Multiport Gigabit Ethernet Switches GENERAL DESCRIPTION FEATURES The Broadcom BCM53125S is a highly integrated, Seven 10/100/1000 media access controllers cost-effective smart-managed Gigabit switch. The Five-port 10/100/1000 transceivers for TX switch design is based on the field-proven, industry- One GMII/RGMII/MII/RvMII/TMII/RvTMII leading ROBO architecture. This device combines all interface for an inband management port (IMP) the functions of a high-speed switch system including for connection to a CPU/management entity packet buffers, PHY transceivers, media access without PHY controllers (MACs), address management, port- One GMII/RGMII/MII/RvMII/TMII/RvTMII based rate control, and a nonblocking switch fabric interface for WAN management port into a single 65-nm CMOS device. Designed to be Dual IMP ports support, WAN interface (port 5) to fully compliant with the IEEE 802.3 and IEEE 802.3x be management port-capable specifications, including the MAC-control PAUSE IEEE 802.1p, MAC Port, ToS, and DiffServ QoS frame, the BCM53125S provides compatibility with all for four queues, plus two time-sensitive queues industry-standard Ethernet, fast Ethernet, and Gigabit Port-based VLAN Ethernet (GbE) devices. IEEE 802.1Q-based VLAN with 4K entries The BCM53125S has a rich feature set suitable for MAC-based trunking with automatic link failover not only standard GbE connectivity for desktop and Port-based rate control laptop PCs, but also for next-generation gaming Port mirroring consoles, set-top boxes, networked DVD players, and BroadSync HD for IEEE 802.1AS support home theater receivers. It is also specifically designed Timestamp tagging at MAC interface for next-generation SOHO/SMB routers and Time-aware egress scheduler gateways. DoS attack prevention The BCM53125S contains five full-duplex 1000Base- Support IPv6 T/100Base-TX/10Base-T Ethernet transceivers. In Ingress mirroring addition, the BCM53125S has one GMII/RGMII/MII/ IGMP snooping, MLD snooping support RvMII/TMII/RvTMII interface for the CPU or a router Spanning tree support (multiple spanning trees, chip, providing flexible up to eight) 10/100/1000 Mbps connectivity. A GMII/RGMII/MII/ Embedded CPU (8051) processor for cable RvMII/TMII/RvTMII interface for the WAN port can be diagnostics, and green power saving mode. configured as an IMP port. CableChecker with unmanaged mode support The BCM53125S provides 70+ on-chip MIB counters Double tagging/QinQ to collect receive and transmit statistics for each port. Egress VID remarking IEEE 802.az EEE (Energy Efficient Ethernet ) The BCM53125S is available in industrial support temperature (I-Temp) and commercial temperature IEEE 802.1AS support (C-Temp) rated packages. The BCM53125S is available in one package type, a 186-pin multirow IEEE 802.3x programmable per-port flow control MLF (MML) package. and backpressure, with IEEE 802.1x support for secure user authentication EEPROM, MDC/MDIO, and SPI Interface Serial Flash Interface for accessing embedded CPU (8051) 4K entry MAC address table with automatic learning and aging 128 KB packet buffer (1 KB = 1024 bytes) 128 multicast group support Jumbo frame support up to 9720 byte 1.2V for core and 3.3V for I/O RGMII with option of 2.5V or 1.5V JTAG support 186-pin multirow MLF (MML) package 53125S-DS06-R Corporate Headquarters: San Jose, CA March 11, 2016 Broadcom ConfidentialBCM53125S Data Sheet Revision History Figure 1: Functional Block Diagram BCM53125S TRD 3:0 0 (port 0) 10/100/1000 GMAC GPHY Registers TRD 3:0 1 (port 1) 10/100/1000 GMAC GPHY Packet Buffer MMU TRD 3:0 2 (port 2) 10/100/1000 GMAC GPHY Address TRD 3:0 3 (port 3) 10/100/1000 Management GMAC GPHY LED LED Interface TRD 3:0 4 (port 4) 10/100/1000 GMAC GPHY Flash Memory 8051 controller GMII/RGMII/MII/RvMII/TMII (port 5) GMAC EEPROM/CPU EEPROM/ SPI Interface GMII/RGMII/MII/RvMII/TMII (IMP) GMAC Broadcom March 11, 2016 53125S-DS06-R Page 2 BROADCOM CONFIDENTIAL Broadcom Confidential