ST20-GP1 Просмотр технического описания (PDF) - STMicroelectronics

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производитель

ST20-GP1

GPS PROCESSOR

STMicroelectronics 

®

ST20-GP1

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

GPS PROCESSOR

ENGINEERING DATA

GPS

radio

12 channel GPS

hardware DSP

ST20-GP1

ST20

CPU

Low

power

controller

Interrupt

controller

Real time

clock/calendar

4K

SRAM

Serial

communications

2 UART (ASC)

1 OS-Link

Parallel

input/output

... 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

October 1996

The information in this datasheet is subject to change

1/116

42 1672 02

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