Silicon Interfaces Announces 802.11 a/b and g IEEE Standard Intellectual Property

CAMPBELL, Calif., August 04, 2005 - Silicon Interfaces, a high-end design services and leading provider for IP’s in Europe, USA and Japan, under their IP Development Program - Silicon Cores: Core to the Intelligent Systems™, today announced the availability of 802.11 a/b and g intellectual property (IP). The SI24WLAN11 802.11 a/b and g IP increases the portfolio of Silicon Interfaces IP’s.

Its a “High Rate” standard wireless local area network (WLAN), operates in the 2.4 GHz/5GHz unlicensed Radio Frequency (RF) band and can transmit up to 54 Mbps and 11 Mbps respectively. This specification describes the functions and services required by an IEEE 802.11 compliant device to operate within ad hoc and infrastructure networks as well as the station mobility within those networks.

The 802.11 a/b and g is designed to use at higher speeds providing maximum performance with minimum power consumption, without draining the device batteries. It plays active role to save power when there is no frame to transmit or there is no intended frame to receive. This module also indicates about power management status to other modules. It can be used in PCs, Laptop computers, high end PDAs and other devices.

SI24WLAN11 a /b and g Features

• Fully Compliant to IEEE 802.11a, IEEE 802.11b and IEEE 802.11g MAC layer functions and frames.
• Customize to work with all the PHY’s (IEEE 802.11a, IEEE 802.11b and IEEE 802.11g)  Supports the role of Station (STA).
• STA operates in both Infrastructures BSS as well as in Independent BSS (IBSS).
• Data rates up to 11 Mbit/sec (802.11b) and 54 Mbit/sec (802.11a and 802.11g)
• Performs CSMA/CA algorithm to sense the medium.
• AHB Bus interface
• Includes WEP based 64-bt Encryption/Decryption algorithm
• Supports both Active and Passive scanning mode
• PHY Interface module handles different clock domains between MAC and PHY
• Optimum hardware-software partitioning for reduced gate count as well as lower MIPS requirements

For a complete listing of SI24WLAN11 a/b and g features and pricing please contact Silicon Cores or visit the Silicon Cores web site at http://www.siliconcores.com

Availability

The SI24WLAN11 a /b and g is available now and as per requirements can be delivered with PHY and AMBA AHB Interfaces.

About SI24WLAN11 a /b and g

SI24WLAN11 a /b and g MAC core for Wireless LAN is compatible with 802.11 a/b and g IEEE standards. It is designed to handle packetized DSSS (Direct Sequence Spread Spectrum) and OFDM (Orthogonal Frequency Division Multiplexing) data transmissions; the software implementation supports all data rates. The MAC management or control functionality is implemented in firmware while the time critical functionality is implemented in hardware. Protocol Firmware is fully compliance with SME (Station Management Entity) and MLME (MAC Sublayer Management Entity) of IEEE 802.11 standard. It handles complete interrupt handling and event processing for the hardware.

About Silicon Interfaces

Silicon Interfaces has experience in verification solutions and developing IP for Fabric Channel Interconnect, Telecom and Networking domains, including Bluetooth Baseband, Gigabit Ethernet MAC, SONET Framer STS-1/3, 1394, USB2 Function Controller, Infiniband, 8530, 8051, 7990, UART, Rapid IO and USB OTG. Currently, our Roadmap IPs are PCI-Express, 10 Giga and SONET STS Framer –12. The IPs has had considerable maturity based on certification, targets to various FPGA devices and ASIC libraries, silicon area optimization, silicon prototyping and testing. Also available is OVA VIP’s and an extensive driver development program in order to offer a packaged solution to the customer. For more information please visit www.siliconcores.com

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