面向行业手持设备旳嵌入式Linux软件平台项目 嵌入式Linux软件平台系统设计阐明书 编写者: CY 版本阐明 日期 版本号 发布阐明 作者 批准人 签字 岗位 s UCB 1400* — Burr Brown ADS7846* audio CODECs with MIC, LINE IN, and HEADPHONE connectors: — Philips UCB 1400 — Cirrus CS4201* Sharp LM8V31 LCD panel, with support for other LCD types one USB Client port pulse width modulation control one infrared (IrDA) transceiver Full Function and Bluetooth UART serial ports one slot for one Secure Digital memory card or MultiMediaCard I2C bus communications logic analyzer connections one expansion-card slot for custom development isolatable processor core voltage for precise power measurements eight 7-segment LED digits, eight discrete LEDs, eight discrete switches, and two hexadecimal-encoding switches for use by application software