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ST20GP1X33S Datasheet(PDF) 1 Page - STMicroelectronics |
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ST20GP1X33S Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 116 page  ® 1/116 .. GPS PROCESSOR FEATURES s Application specific features • 12 channel GPS correlation DSP hardware and ST20 CPU (for control and position calu- culations) on one chip • no TCXO required • RTCA-SC159 / WAAS / EGNOS supported s GPS performance • accuracy - stand alone with SA on <100m, SA off <30m - differential <1m - surveying <1cm • time to first fix - autonomous start 90s - cold start 45s - warm start 7s - obscuration 1s s 32-bit ST20 CPU • 16/33 MHz processor clock • 25 MIPS at 33 MHz • fast integer/bit operations s 4 Kbytes on-chip SRAM • 130 Mbytes/s maximum bandwidth s Programmable memory interface • 4 separately configurable regions • 8/16-bits wide • support for mixed memory • 2 cycle external access s Serial communications • Programmable UART (ASC) • OS-Link s Vectored interrupt subsystem • 2 dedicated interrupt pins • 5 levels of interrupt s Power management • low power operation • power down modes s Professional toolset support • ANSI C compiler and libraries • INQUEST advanced debugging tools s Technology • Static clocked 50 MHz design • 3.3 V, sub micron technology s 100 pin PQFP package ST20-GP1 ENGINEERING DATA The information in this datasheet is subject to change 42 1672 02 October 1996 APPLICATIONS s Global Positioning System (GPS) receivers s Car navigation systems s Fleet management systems s Time reference for telecom systems GPS radio 12 channel GPS Low controller power Real time clock/calendar 4K SRAM Programmable memory interface RAM ROM/ FLASH ST20-GP1 ST20 CPU Interrupt controller Serial communications Parallel input/output Byte-wide parallel port ... 6 8 2 UART (ASC) 1 OS-Link . hardware DSP |
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