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ST20-GP1 Datasheet

  • ST20-GP1

  • GPS PROCESSOR

  • 116頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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

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