System-on-Chip
The device is designed to provide a complete processor plus peripherals solution on a single chip. It adds a third UART, a 80KB on-chip SRAM, and a SD Card controller, while maintaining pin and register compatibility with the current L7200 and L7205 products. The SoC is fabricated with the latest 0.18 technology. It offers system designers five levels of power management and requires less than 100 milliwatts.
The SD Card controller allows the device to power and provide secure storage to devices such as smart cellular phones, which offer voice, fax and Internet capability along with the ability to play secure music files. The SD Memory Card offers a combination of high storage capacity (currently 32 MB and 64 MB), fast data transfer, flexibility, and security.
In addition to interfacing with popular communications-oriented DSPs, the device includes a display subsystem capable of controlling 800x600 color or monochrome LCD panels. Controllers for PC Card/CompactFlash and MultiMediaCard flash-based storage and Smart Card are also included on the chip. The serial communications subsystem includes three asynchronous communication controllers (UARTs), slow/medium/fast IrDA controllers, master/slave synchronous serial port (SSP), and Synchronous Peripheral Interface (SPI).
A USB function controller and an OHCI-compliant USB host controller provide additional connectivity. The three UARTs have been designed to support the Bluetooth standard by upgrading the UARTs to 920 kbps rate. A 32-bit real time clock and two 16-bit timer/counters provide system control for the L7210. The system includes 73 general-purpose input/outputs (GPIOs).
LinkUp Systems Corporation, 3401 Leonard Court, Santa Clara, CA 95054. Tel: 408-988-1848; Fax: 408-988-3848.