ROHM's Wireless LAN system IC can easily construct Wireless LAN system by combining with RF IC. They install the baseband processor and the media access controller of conforming with IEEE802.11a/b/g standard, most of Wireless LAN stndard conforming part is processed. It is the best for embedded systems, because they can construct Wireless LAN system without high-performance host CPU.They support the host interface of SDIO(BU1802GU) or SPI(BU1803GU), and can connect it with host CPU easily.