Wireless PCI/USB Controller

The Cirrus CS22210 wireless PCI/USB controller incorporates the IEEE 802.11b media access controller (MAC) to enable Wi-Fi compliant wireless network devices providing industry-wide interoperability. In addition, the CS22210 supports multimedia and quality of service (QoS) extensions to distribute entertainment content wirelessly throughout the home network with unparalleled performance.

The Cirrus CS22210 wireless PCI/USB controller enables high performance, reliable, wireless network interface connections (NICs) for PCs and other client devices in the home. The CS22210 delivers an optimal level of flexibility in cost, functionality, and performance. It is a highly integrated, single-chip device that provides 11 Mbps wireless connectivity. On-chip interfaces include USB, PCI, and high-speed digital 802.11b wireless radio. The CS22210 also includes an embedded ARM7TDMI processor for executing networking protocols and network management functions. This programmable architecture enables a firmware upgrade path to new features and to track changes in standards specifications.

• Cirrus Whitecap2 protocol support
  • Wi-Fi (802.11b), multimedia, and QoS
• 77 MHz ARM7TDMI RISC processor core
  • 4 KB integrated L1 cache
  • DMA control blocks
• Memory controllers
  • 16-bit, 100 MHz SDRAM/FLASH memory interface
  • 4 MB addressable memory space
• Forward Error Correction (FEC)
  • Wire-like bit error rate performance
    (10^-11 BER performance for typical 10^-5 BER environment)
• Glueless direct interface to an 11 Mbps digital radio
• Host bus interfaces
  • PCI 2.1 and 2.2 compliant bus interface
  • USB 1.1 full speed (12 Mbps) compliant interface
• Power management
• Package/Technology:
  • 1.8V core, 3.3V I/O; 0.18 micron CMOS process