Description

The CXD2931R is a dedicated LSI for the GPS (Global Positioning System) satellite-based position measurement system.

This LSI contains a 32-bit RISC CPU, 2M-bit MASK ROM, RAM, UART, timer, and others.

This LSI, used together with the RF LSI (CXA1951AQ), enables the configuration of a 2-chip system capable of measuring its position anywhere on the globe.

Features

• 16-channel GPS receiver capable of simultaneously receiving 16 satellites

• Supports differential GPS

— Comforms to RTCM SC-104 Ver. 2.1

— Supports DARC

• All-in-view measurement

• 2-satellite measurement

• Timer supporting GPS time

• High performance 32-bit RISC CPU

• 256K-byte program ROM

• 36K-byte RAM

• 3-channel UART

— Baud rate generator

— Supports 1.2K, 2.4K, 4.8K, 9.6K, 19.2K and 38.4K baud

— Supports 1/2/4-byte buffer mode

• 23-bit general-purpose I/O port capable of defining input/output independently for each bit