Lattice iCE40超低功耗FPGA移动开发平台

Lattice公司的iCE40 Ultra系列是超低功耗FPGA和传感器管理器,包括有SPI和I2C区块,以便和所有的移动传感器和应用处理器接口.此外还集成了两个振荡器10kHz和48MHz.器件具有1100到3520 LUT,采用先进的40nm超低功耗工艺,待机功耗低至71uA,主要用在可穿戴设备和,智能手机,平板电脑,手持设备等.本文介绍了iCE40 Ultra FPGA主要特性,iCE40 Ultra™移动开发平台主要特性,框图电路图,材料清单.
iCE40 Ultra family is an ultra-low power FPGA and sensor manager designed for ultra-low power mobile applications, such as smartphones, tablets and hand-held devices. The iCE40 Ultra family includes integrated SPI and I2C blocks to interface with virtually all mobile sensors and application processors. The iCE40 Ultra family also features two on-chip oscillators, 10 kHz and 48 MHz. The LFOSC (10 kHz) is ideal for low power function in always-on appli-cations, while HFOSC (48 MHz) can be used for awaken activities. The iCE40 Ultra family also features DSP functional block to off-load Application Processor to pre-process informa-tion sent from the mobile sensors. The embedded RGB PWM IP, with the three 24 mA constant current RGB out-puts on the iCE40 Ultra provides all the necessary logic to directly drive the service LED, without the need of external MOSFET or buffer. The 500 mA constant current IR driver output provides a direct interface to external LED for application such as IrDA functions. Users simply implement the modulation logic that meets his needs, and connect the IR driver directly to the LED, without the need of external MOSFET or buffer. This high current driver can also be used as Barcode Emulation, sending barcode information to external Barcode Reader. The iCE40 Ultra family of devices are targeting for mobile applications to perform functions such as IrDA, Service LED, Barcode Emulation, GPIO Expander, SDIO Level Shift, and other custom functions. The iCE40 Ultra family features three device densities, from 1100 to 3520 Look Up Tables (LUTs) of logic with pro-grammable I/Os that can be us...