General Description
The Broadcom® BCM53134M is an ultra low-power, highly integrated, cost-effective smart-managed Gigabit switch. The switch design is based on the field-proven, industryleading ROBO architecture. This device combines all the functions of a high-speed switch system including packet buffers, PHY transceivers, media access controllers MACs), address management, port-based rate control, and nonblocking switch fabric into a single 28 nm CMOS device. Designed to be fully compliant with the IEEE 802.3 and IEEE 802.3x specifications, including the MAC-control PAUSE frame, the BCM53134M provides compatibility with all industry-standard Ethernet, Fast Ethernet, and Gigabit Ethernet (GbE) devices.
The BCM53134M has a rich feature set suitable for not only standard GbE connectivity for broadband home gateways, desktop, and laptop PCs, but also for next-generation gaming consoles, set-top boxes, networked DVD players, and home theater receivers. It is also specifically designed for next generation SOHO/SMB routers and gateways.
The BCM53134M contains four full-duplex 10/100/1000BASE-T Ethernet transceivers. In addition, the BCM53134M has two PHY-less interfaces for the CPU or a router chip, providing flexible 10/100/1000 Mb/s connectivity. One RGMII interface can be connected to a CPU entity and configured as an IMP (In-Band Management port).
The second RGMII interface is available for another PHY, modem, or CPU connection.
The BCM53134M provides 70+ on-chip MIB counters to collect receive and transmit statistics for each port.

Features
 Six 10/100/1000 media access controllers
 Four-port 10/100/1000 transceivers for TX
 One RGMII interface for an IMP for connection to a CPU/management entity without PHY
 One RGMII interface for a connection to another PHY, CPU, or modem
 IEEE 802.1p, MAC Port, TOS, and DiffServ QoS for six queues, plus two time-sensitive queues
 Port-based VLAN
 IEEE 802.1Q-based VLAN with 4K entries
 MAC-based trunking with automatic link failover
 Port-based rate control
 Port mirroring (Ingress/Egress)
 Supports IPv4 and IPv6
 Priority modification on egress
 BroadSync® HD for IEEE 802.1AS support
 Timestamp tagging at MAC interface
 Time-aware egress scheduler
 DOS attack prevention
 IGMP Snooping, MLD snooping support
 Spanning tree support (multiple spanning trees–up to eight)
 Embedded CPU (8051) processor for cable diagnostics
 CableChecker™ with unmanaged mode support
 Double tagging/QinQ
 IEEE 802.az Energy Efficient Ethernet (EEE) support
 IEEE 802.3x programmable per-port flow control 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