Wireless Mini PCI Controller

The Cirrus CS22230 wireless Mini PCI 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 CS22230 supports multimedia and quality of service (QoS) extensions to distribute entertainment content wirelessly throughout the home network with unparalleled performance.

The Cirrus CS22230 wireless Mini PCI controller enables high performance, reliable, embedded wireless network interface connections (NICs) for mobile devices, such as PC notebooks and Web pads that utilize a Mini PCI form factor interface. The CS22230 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 Mini PCI and high speed digital 802.11b wire-less radio. The CS22230 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
  • 4MB 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
  • Mini PCI 1.0 compliant bus interface
• Power management
• Package/Technology
  • 1.8V core, 3.3V I/O; 0.18 micron CMOS process