Cirrus Logic

This page covers the following companies: ShareWave and Cirrus Logic.

Timeline

 * 1996: ShareWave founded
 * 2001: Cirrus Logic acquires ShareWave
 * 2002: Cirrus Logic exits the Wi-Fi chip business

Chips and reference designs
Ordered by release date:

Before whitecap 1:
 * ShareWave SWN250A - NAMI Compression/Decompression Chip
 * ShareWave SWS260A Wireless Network Controller, used in Cresta radio module (w/ Harris/Intersil RFIC) (released in 1998)
 * ShareWave SWS261A Multimedia Device Controller
 * SWN350A NAMI Compression Chip
 * SWN351A NAMI Decompression Chip
 * ShareWave Osprey wireless PC-to-PC connection reference design
 * ShareWave Falcon wireless TV terminal reference design
 * module: SWC424A Cresta Digital Radio module - 4Mbps DSSS 2.4GHz

Whitecap 1 (not 802.11 compliant) - "Stinson" platform - "SW2000 Series":
 * ShareWave SWN2120 Wireless Network Controller - Whitecap proprietary protocol, not 802.11 compliant (MAC only, typically used with Intersil PRISM BB+RFIC)
 * ShareWave SWN2120 Wireless Network Controller (low power)
 * ShareWave SWB2510 Wireless Bridge Controller
 * ShareWave SWG2710 broadband Residential Gateway (RG) Controller
 * module: ShareWave Cresta II radio module - Whitecap protocol

Whitecap 2 (2001) "Bodega" platform/chipset - "SW2200 Series" 802.11b + Whitecap2 proprietary protocol:
 * SW2210 Wireless PCI/USB Controller
 * SW2220 Wireless PCMCIA Controller
 * SW2230 Wireless Mini PCI Controller
 * SW2250 Wireless 10BT Controller
 * SW2270 Wireless Multi-Link Controller
 * module: Cresta 3 Mini-PCI Digital Radio/ reference design

"Hermosa" Wireless LAN Platform:
 * Collaborated with Radiata on combined 802.11a+b chipset using Radiata 802.11a chipset.
 * SW5200 Series Network Controllers

After Cirrus Logic acquisition in 2001, Whitecap 2 chips were relabeled to "CS22200 Series":
 * CS22210 Wireless PCI/USB Controller
 * CS22220 Wireless PCMCIA Controller
 * CS22230 Wireless Mini PCI Controller
 * CS22250 Wireless 10BT Controller
 * CS22270 Wireless Multi-Link Controller