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The LAN9514 is a high performance, Hi-Speed USB 2.0 hub with a 10/100 Ethernet controller. The LAN9514 contains an integrated USB 2.0 hub, four integrated downstream USB 2.0 PHYs, an integrated upstream USB 2.0 PHY, a 10/100 Ethernet PHY, a 10/100 Ethernet controller, a TAP controller, and an EEPROM controller. The EVB9514 is an Evaluation Board (EVB) that utilizes the LAN9514 to provide a four port USB 2.0 hub with an integrated 10/100 Ethernet controller. The EVB9514 provides USB connectivity via one type B upstream USB connector and four type A downstream USB connectors. An RJ-45 integrated magnetics Ethernet jack with link/activity LEDs provides 10/100 Ethernet connectivity. The EVB9514 supports both bus-powered and self-powered modes of operation. The EVB9514 includes a 512x8 Microwire EEPROM that may be used to automatically load USB descriptors, USB device configuration, and the MAC address upon reset. A GPIO header provides access to the LAN9514’s general purpose I/O signals. For debugging purposes, the internal LAN9514 TAP controller is accessible via the included JTAG header.

The Cypress CYW43438 is a highly integrated single-chip solution and offers the lowest RBOM in the industry for smartphones, tablets, and a wide range of other portable devices. The chip includes a 2.4 GHz WLAN IEEE 802.11 b/g/n MAC/baseband/radio, Bluetooth 4.1 support, and an FM receiver. In addition, it integrates a power amplifier (PA) that meets the output power requirements of most handheld systems, a low-noise amplifier (LNA) for best-in-class receiver sensitivity, and an internal transmit/receive (iTR) RF switch, further reducing the overall solution cost and printed circuit board area. The WLAN host interface supports gSPI and SDIO v2.0 modes, providing a raw data transfer rate up to 200 Mbps when operating in 4-bit mode at a 50 MHz bus frequency. An independent, high-speed UART is provided for the Bluetooth/FM host interface. Using advanced design techniques and process technology to reduce active and idle power, the CYW43438 is designed to address the needs of highly mobile devices that require minimal power consumption and compact size. It includes a power management unit that simplifies the system power topology and allows for operation directly from a rechargeable mobile platform battery while maximizing battery life. The CYW43438 implements the world’s most advanced Enhanced Collaborative Coexistence algorithms and hardware mechanisms, allowing for an extremely collaborative WLAN and Bluetooth coexistence.

The Raspberry Pi Foundation是英国一个小型的慈善组织，成立的宗旨在于推广科技，而非以销售技术来营利。该基金会过去从来没真的发表过一款产品，因而选择了两家全球渠道商e络盟和RS Components为其处理首批Raspberry Pi订单。面对的是业余爱好者和热心DIY 的科技迷，Raspberry Pi销售非常不错。 Raspberry Pi是一款针对电脑业余爱好者、教师、小学生以及小型企业等用户的迷你电脑，预装Linux系统，体积仅信用卡大小，搭载ARM架构处理器，运算性能和智能手机相仿。 在接口方面，Raspberry Pi提供了可供键鼠使用的USB接口，此外还有快速以太网接口、SD卡扩展接口以及1个HDMI高清视频输出接口，可与显示器或者TV相连