bcm57840s Broadcom Corp., bcm57840s Datasheet - Page 2

• Manufacturer Part Number: bcm57840s
• Description: 10 Gbps Quad-port Iscsi, Fcoe, Toe, And Rdma Pci-sig Sr-iov X8 Pci Express 3.0-ready Controller
• Manufacturer: Broadcom Corp.

SR-IOV 10 Gbps/Converged solution—
Power and space optimized for Blade
server, Rack, Tower, and Converged Net-
work Adapter applications
Extremely low CPU utilization for iSCSI,
FCoE, TCP/IP, and RDMA applications
Accelerated IP-based file and block stor-
age
Broadcom, the pulse logo, Connecting everything, and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain
other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners.
December 20, 2010 • 57840S-PB00-R
BCM57840S Benefits
About Broadcom
Broadcom Corporation is a major technology
innovator and global leader in semiconduc-
tors for wired and wireless communications.
Broadcom products enable the delivery of
voice, video, data and multimedia to and
throughout the home, the office and the
mobile environment. We provide the indus-
try's broadest portfolio of state-of-the-art sys-
tem-on-a-chip and software solutions to
manufacturers of computing and networking
equipment, digital entertainment and broad-
band access products, and mobile devices.
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Host CPU is free to run application
code
Minimal load on memory subsystem
with zero copy
Lower CPU utilization for file-level
storage protocols such as CIFS/SMB
and NFS
Offloaded and accelerated iSCSI
block storage with high I/O per sec-
ond and low CPU utilization
10GBASE-KR/SFI
10GBASE-KR/SFI
25.00 MH z
P L L
Port 1, 3
Port 0, 2
SerDes
NC-SI
KR/SFI
NC-SI
KR/SFI
SerDes
A utoNeg
MAC 1, 3
MAC 0, 2
10 Gb
10 Gb
1 Gb,
1 Gb,
Accelerated FCoE
Performance-focused—Optimized for
high throughput, low latency, and CPU
utilization
Robust and highly manageable
These solutions support our core mission:
Connecting everything®.
Broadcom, one of the world's largest fabless
communications semiconductor companies,
with 2009 revenue of $4.49 billion, holds
more than 4,300 U.S. and 1,800 foreign pat-
ents, and has more than 7,900 additional
pending patent applications, and one of the
broadest intellectual property portfolios
addressing both wired and wireless transmis-
sion of voice, video, data and multimedia.
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SMB_CLOCK
SMB_DATA
Interface
SMBus
Offloaded and accelerated FCoE for
Fibre Channel block storage with
high I/O per second and low CPU uti-
lization
Adaptive interrupt coalescing
RSS reduces CPU utilization on multi-
CPU systems.
MSI/MSI-X allows interrupt distribu-
tion in a multi-CPU system.
NC-SI enables high bandwidth out-
of-band system management func-
tionality over shared infrastructure.
BCM57840S Block Diagram
Management
Processor
Arbiter
PCI Express SerDes x8
PCI Express x8
Lanes [7:0]
Controller
Memory
TCP/IP
Protocol
RDMA
Engine
On-Chip
Memory
Buffer
1.0V
Regulation
Power
Protocol
3.3V
Engine
iSCSI
Server class reliability, availability, and
performance features
A FORTUNE 500® company, Broadcom is
headquartered in Irvine, Calif., and has offices
and research facilities in North America, Asia
and Europe. Broadcom may be contacted at
+1.949.926.5000 or at www.broadcom.com.
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Guaranteed delivery of manage-
ment traffic
PXE v2.1, ACPI v2.0b, WOL
Host-BMC Communication for con-
nectivity between local host and
Management Controller (MC/BMC)
Link aggregation and load balancing
- Switch-dependent
IEEE 802.3ad (LACP), generic trunk-
ing (GEC/FEC)
- Switch- and NIC-independent
SPI Controller
Serial Flash -
LED Control
Protocol
Engine
Block
FCoE
JTAG
GPIO
Interface
Interface
Flash
GPIO
Interface
LED
JTAG