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