The Atheros AR7241 is a high performance and cost effective network processor for access point, router, and gateway applications. It includes a MIPS 24K processor, PCI Express host interface, integrated 802.3 Ethernet Switch with five 10/100 Mbps Fast Ethernet MAC/PHY, one USB 2.0 MAC/PHY, and external memory interface for serial Flash, DDR1 or DDR2 interface, an I2 S audio interface, a high-speed UART, and GPIOs that can be used for LED controls or other general purpose interface configurations. The AR7241 is a memory-centric architecture including various DMA controlled interfaces that access the DDR memory. The AR7241 network processor, when paired with the AR9287 single chip 802.11n MAC/ BB/Radio family, provides the best-in-class WLAN solution capable of supporting 802.11b/g/n standards