8/11/2009 HLWCH
Data Sheet
BCM53115M
53115M-DS06-R
5300 California Avenue • Irvine, CA 92617 • Phone: 949-926-5000 • Fax: 949-926-5203 05/13/09
Multiport Gigabit Ethernet Switches
GENERAL DESCRIPTION
FEATURES
The Broadcom
®
BCM53115M is a highly integrated, cost-
effective smart-managed gigabit switch. The switch
design is based on the field-proven, industry-leading
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 a non-blocking switch fabric into a single 65 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 BCM53115M provides
compatibility with all industry-standard Ethernet, Fast
Ethernet, and Gigabit Ethernet (GbE) devices.
The BCM53115M has a rich feature set suitable for not
only standard GbE connectivity for 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 BCM53115M contains five full-duplex 10/100/1000
BASE-TX Ethernet transceivers. In addition, the
BCM53115M has one GMII/RGMII/MII/RvMII interface for
the CPU or a router chip, providing flexible
10/100/1000 Mbps connectivity. A GMII/RGMII/SGMII/
MII/RvMII interface for the WAN port can be configured as
an IMP port.
The BCM53115M provides 70+ on-chip MIB counters to
collect receive and transmit statistics for each port.
The BCM53115M is available in industrial temperature
(I-Temp) and commercial temperature (C-Temp) rated
packages. The industrial-grade BCM53115M is provided
in a 484-pin PBGA (23 mm x 23 mm) package. The
commercial-grade BCM53115M is provided in a 400-pin
FBGA (17 mm x 17 mm) package.
• Seven 10/100/1000 media access controllers
• Five-port 10/100/1000 transceivers for Tx
• One GMII/RGMII/MII/RvMII interface for an inband
management port (IMP) for connection to a CPU/
management entity without PHY
• One GMII/RGMII/SGMII/MII/RvMII interface for WAN
port
• Dual IMP ports support, WAN interface (Port 5) to be
IMP port-capable
• IEEE 802.1p, MAC Port, TOS, and DiffServ QoS for four
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
• Compact field processor (CFP)
-256 rules
- Filtering, classifications, remarking, and priority
actions
- Support IPv6
- Priority modification on egress
• BroadSync™ HD
- Timestamp tagging at MAC interface
- Time-aware egress scheduler
• DOS attack prevention
- Support IPv6
- Ingress mirroring
• IGMP Snooping, MLD snooping support
• Spanning tree support (multiple spanning trees–up to
eight)
• Loop detection for unmanaged configurations with
Broadcom’s patented LoopDTech™ technology
• CableChecker™ with unmanaged mode support
• Double tagging/QinQ
• Egress VID remarking
• IEEE802.3 as 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.
• 4K entry MAC address table with automatic learning and
aging
• 128 KB packet buffer
• 128 multicast group support
• Jumbo frame support up to 9720 byte
• 1.2V for core and 3.3V for I/O
• JTAG support
• 484 PBGA
• 400 FBGA
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