SAA1575HL

INTEGRATED CIRCUITS DATA SHEET SAA1575HL Global Positioning System (GPS) baseband processor Product specification Supersedes data of 1999 May 17 File under Integrated Circuits, IC18 1999 Jun 04 Philips Semiconductors Product specification Global Positioning System (GPS) baseband processor CONTENTS 1 2 3 4 5 6 7 7.1 7.2 7.3 7.4 7.4.1 7.4.2 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.6 7.7 7.7.1 7.7.2 7.7.3 7.7.4 7.7.5 7.8 7.8.1 7.8.2 7.8.3 7.8.4 7.9 7.9.1 7.9.2 7.9.3 FEATURES GENERAL DESCRIPTION QUICK REFERENCE DATA ORDERING INFORMATION BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Overview The 80C51XA processor The GPS correlators Memory organization Data memory space Code memory space CPU peripheral features Timers/counters Watchdog timer UARTs RF IC programming port General purpose I/O The real-time clock The external bus Program memory chip select Data memory chip select Read strobe Write LOW byte strobe Write HIGH byte strobe Backup supplies and reset Supply domains Power-down design strategy System reset control Power saving modes Clock signals and oscillators System clock (XTAL1) RTC clock (XTAL3) Reference clock (RCLK) 8 9 10 11 12 13 14 14.1 14.2 14.3 14.4 14.5 15 16 LIMITING VALUES SAA1575HL THERMAL CHARACTERISTICS DC CHARACTERISTICS AC CHARACTERISTICS DEFAULT APPLICATION AND DEMONSTRATION BOARD PACKAGE OUTLINE SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC packages for wave and ...