Product Brief
BCM5315X
Description
Multiport GbE Switch Series with
Integrated PHYs and 10GbE Uplinks
The Broadcom® BCM5315X family of highly integrated Gigabit-Ethernet
(GbE) switches is designed for high-end and cost-effective 1GbE and above
applications. The switch family supports eight 10/100/1000BASE-T ports
(with integrated GPHYs), one QSGMII port, and an additional one or two
high-speed 2.5GbE SGMII, or 10GbE XFI/SFI ports.
The BCM5315X family is optimally designed for Gigabit-Ethernet SMB,
Industrial, and service provider applications that take advantage of high-
speed uplinks connectivity of 2.5GbE/10GbE speeds. This switch family
is based on the industry-leading 28 nm RoboSwitch™ architecture, also
known as Robo-2. The products in this family integrate the powerful ARM
Cortex-M7 CPU that enables customers to design switching platforms
without adding an external processor. These products are also equipped
with the high-end forwarding mechanisms required in many advanced
applications. These mechanisms include an advanced QoS engine, flexible
content filter processor (CFP), sophisticated VLAN manipulation capability,
security features, packet synchronization for time-sensitive networks, and
many more.
The BCM5315X family of switches is supported by several software
packages designed for various applications. Basic, unmanaged software
can be used to construct unmanaged switches with basic functionalities
and no VLAN segregation. Web-managed software (such as ROBO-OS™)
can be used to build web-controlled switches while full-featured SDK
software can be used to construct managed devices that are controlled by
an external CPU. For example, home gateways and Ethernet MDU switches
can connect the BCM5315X switches to an external PON or DSL SoC.
The BCM5315X family of switches can be used to construct standalone
platforms with low port-count configuration (up to 15 ports), or a cascaded
design with double port-count switches by connecting two devices back-
to-back.
The BCM5315X switches are offered to customers in commercial-grade
ambient temperature.
Key Features
• Eight 10/100/1000BASE-T ports
with integrated PHYs.
• One QSGMII port.
• Two 1000FX/2500FX (SGMII+) or
10000FX XFI/SFI ports.
• An integrated ARM Cortex-M7 CPU.
• An RGMII, MII, and RvMII port to
connect to an external CPU (or to
be used as a 1GbE customer port).
• Cascading that enables the creation
of unified, single-CPU managed, 15-
to 28-port switch.
• Support for advanced QoS, CFP,
VLAN manipulation, up to L4
classification via CFP, and Time
Sensitive Networking (TSN).
• Support for the IEEE 802.1BR port
extender.
• Power-saving green technology
per IEEE 802.3az Energy Efficient
Ethernet.
• Support for commercial (0°C to
70°C) ambient temperature.
Benefits
• Support for cascading mode that enables the creation of a unified,
single-CPU managed, 16- to 26-port switch.
• Support for high-end QoS capabilities with hierarchical scheduling, eight
egress buffer queues per port each with its own shaper, WRED and Tail-
drop congestion avoidance, and dual
leaky bucket
ingress rate limiters
(also known as policers).
• Advanced CFP (such as an access-list engine) that can classify up to L4
headers.
Applications
• Industrial Ethernet
• Unmanaged/web-managed/
managed SMB switches
• Home gateway MDU
• Port extender
RoboSwitch™ Technology
Product Brief
Benefits (con’t)
• Support for virtual switching instances (VSI) for explicit segregation of bridging domains with advanced VLAN
translation and encapsulation (for example, MAC-in-MAC).
• Port-extender support, per IEEE 802.1BR, for designing modular chassis devices or
pizza box
platforms with
remote port extensions.
• Advanced TSN protocol support, such as IEEE 802.1Qav, 802.1Qbv, 802.1ASrev, and 802.1Qci, for scheduling time-
critical traffic streams across an entire network domain.
• Delivered with unmanaged software, web-managed software, or two different managed SDK software
(RoboSwitch SDK and Network Switch SDK).
BCM5315X Block Diagram
2× 1GbE/2GbE/10GbE
RGMII
LED
QSPI
SPI
MFIO
I
2
C
MDIO
GPIO
2× SerDes
(SGMII+ or
XFI/SFI)
GMAC
Time Sync
LED
Processor
Microcontroller
8051
ARM
Cortex-M7
Packet
Bu er
(1 MB)
CFP
(1K rules)
2× XMAC
(1G/2.5G)
GMAC
GPHY
GMAC
GPHY
Memory Manager
8 COS SP.WDRR.
WRR, WRED
Meters and Counters
(512 flows meters,
128 port meters)
L2
Processing
(16K MAC)
GMAC
GPHY
GMAC
GPHY
GMAC
GPHY
GMAC
GPHY
GMAC
GPHY
GMAC
GPHY
4× GMAC
SerDes
QSGMII
4
×
10/100/1000BASE-T
Ordering Information
Description
Intelligent, unmanaged GbE Robo-2 switch with 8x 10/100/1000BASE-T ports
with integrated GPHYs + 1× 10000FX XFI/SFI port
Intelligent, managed GbE Robo-2 switch with 8x 10/100/1000BASE-T ports
with integrated GPHYs + 1× 10000FX XFI/SFI port
Intelligent, unmanaged GbE Robo-2 switch with 8x 10/100/1000BASE-T ports
with integrated GPHYs + 1× QSGMII port + 2× 1000FX/2500FX/10000FX XFI/SFI ports
Intelligent, port-extender GbE Robo-2 switch with 8x 10/100/1000BASE-T ports
with integrated GPHYs + 1× QSGMII port + 2× 1000FX/2500FX/10000FX XFI/SFI ports
Intelligent, managed GbE Robo-2 switch with 8x 10/100/1000BASE-T ports
with integrated GPHYs + 1× QSGMII port + 2× 1000FX/2500FX/10000FX XFI/SFI ports
Ambient Temperature
Commercial
(0°C to 70°C)
Commercial
(0°C to 70°C)
Commercial
(0°C to 70°C)
Commercial
(0°C to 70°C)
Commercial
(0°C to 70°C)
Package
13 mm x 13 mm
13 mm x 13 mm
13 mm x 13 mm
13 mm x 13 mm
13 mm x 13 mm
Device ID
BCM53156XUKFBG
BCM53156XMKFBG
BCM53158XUKFBG
BCM53158XPKFBG
BCM53158XMKFBG
4
×
10/100/1000BASE-T
Visit the Broadcom website at:
www.broadcom.com/products
Broadcom, the pulse logo, Connecting everything, Avago Technologies, ROBO-OS, and RoboSwitch are among the trademarks
of Broadcom. Copyright © 2017 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Limited and/or its
subsidiaries. For more information, please visit
www.broadcom.com.
5315X-PB100 10.03.17
Mouser Electronics
Authorized Distributor
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BCM53156XMB0KFBG BCM53158XPB0KFBG BCM53158XMB0KFBG BCM53156XUB0KFBG
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