bcm4716 Broadcom Corp., bcm4716 Datasheet - Page 2

• Manufacturer Part Number: bcm4716
• Description: Bcm4716 - Intensi-fi Xlr 802.11n 2.4 Ghz Router System-on-chip
• Manufacturer: Broadcom Corp.

The Broadcom BCM4716/BCM4717/BCM4718 processor is the highest
performance System-on-a-Chip in the Intensi-fi
It is a Draft IEEE 802.11n-compliant CPU/MAC/baseband/radio router
solution designed to work with various external switch arrangements,
including 10/100/1000, 10/100, or a single-port PHY. Integrated on-chip
is a powerful 533 MHz MIPS32 74K core with four-way set associative
32-KB instruction cache, a 32-KB two-way set associative data cache,
and a 64-entry translation lookaside buffer. Enhanced CPU memory
subsystem architecture provides increased system performance.
Using multiple in/multiple out (MIMO) signaling with Draft IEEE
802.11n protocol, information is sent and received over two or more
antennas simultaneously using the same frequency band, thus providing
greater range and increasing throughput while maintaining compatibility
with legacy IEEE 802.11a/b/g devices (BCM4716 supports legacy IEEE
802.11b/g devices only). This improved functionality is accomplished
through a combination of enhanced MAC and PHY implementations,
including spatial multiplexing modes in the transmitter and receiver and
advanced digital signal processing techniques to improve receive
sensitivity.
Broadcom
XLR, Accelerange™ Technology, and SecureEasySetup
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.
BROADCOM CORPORATION
5300 California Avenue
Irvine, California 92617
© 2008 by BROADCOM CORPORATION. All rights reserved.
4716_4717_4718-PB02-R
Feature
Package ball count
CPU
SDRAM
Flash
Ethernet (External PHY + MII/
RGMII)
PCIe™
USB 2.0 ports
I
GPIO
Band
Up to 3 antennas support
External LNA support
Reference design
2
S
®
, the pulse logo, Connecting everything
07/15/08
®
BCM4716
339 pins
300 MHz
16-bit DDR1 at DDR400
Serial Flash
Yes
No
No
No
8
2.4 GHz
Yes
No
BCM94716NR2
®
, the Connecting everything logo, Intensi-fi
®
are among the trademarks of Broadcom
®
XLR processor family.
Device Options and Features
O V E R V I E W
BCM4717
368 pins
300 MHz
16-bit DDR2 up to DDR2-533
Serial Flash
Yes
No
1 Host
Yes
16
2.4 GHz/5 GHz
Yes
Yes, multiplexed onto 8 GPIOs
BCM94717NR
®
With its fully integrated dual-band radio transceiver, the chip
architecture supports two streams with two antennas for TCP throughput
of over 200 Mbps. Switched antenna diversity operation is also
supported for three antennas.
State-of-the-art security is provided by industry-standardized system
support for WPA, WPA2 (IEEE 802.11i), and hardware accelerated AES
encryption/decryption coupled with TKIP and IEEE 802.1X support.
Embedded hardware acceleration enables increased system performance
and significantly reduces host CPU utilization in both client and access
point configurations. The BCM4716/BCM4717/BCM4718 supports
WPS and also Broadcom's widely accepted and deployed
SecureEasySetup
networks.
The BCM4717 integrates one USB 2.0 EHCI host port, and the
BCM4718 integrates two USB 2.0 EHCI host ports. The BCM4718
includes an 8/16-bit parallel external bus interface (EBI) for Flash
memory as well as other generic parallel devices. There are 16 dedicated
GPIOs.
Device
®
application for ease-of-use wireless secured
BCM4718
570 pins
300 MHz–533 MHz
32-bit DDR2 up to DDR2-533
8-bit parallel Flash
Yes
Yes
2 Hosts
Multiplexed onto 6 parallel Flash pins
16
2.4 GHz/5 GHz
Yes
Yes, multiplexed onto 8 GPIOs
BCM94718NR
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com