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ST20-GP1 데이터시트 PDF




ST Microelectronics에서 제조한 전자 부품 ST20-GP1은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 ST20-GP1 자료 제공

부품번호 ST20-GP1 기능
기능 GPS PROCESSOR
제조업체 ST Microelectronics
로고 ST Microelectronics 로고


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ST20-GP1 데이터시트, 핀배열, 회로
® 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
Programmable
memory
interface
Serial
communications
2 UART (ASC)
1 OS-Link
Parallel
input/output
Byte-wide
parallel port
... 6
... 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




ST20-GP1 pdf, 반도체, 판매, 대치품
ST20-GP1
19 Timing specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
19.1 EMI timings ........................................................................................................................................ 102
19.2 Link timings ........................................................................................................................................ 104
19.3 Reset and Analyse timings ................................................................................................................ 105
19.4 ClockIn timings .................................................................................................................................. 106
19.5 Parallel port timings ........................................................................................................................... 107
20 Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
21 Package specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
21.1 ST20-GP1 package pinout ................................................................................................................ 112
21.2 100 pin PQFP package dimensions .................................................................................................. 113
22 Device ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
23 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
4/116
®

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ST20-GP1 전자부품, 판매, 대치품
ST20-GP1
2 ST20-GP1 architecture overview
The ST20-GP1 consists of an ST20 CPU plus application specific DSP hardware for handling GPS
signals, plus a dual channel UART, 8-bit parallel half-duplex link interface, 6-bit parallel IO, real time
clock and watchdog functions.
Figure 2.1 shows the subsystem modules that comprise the ST20-GP1. These modules are
outlined below and more detailed information is given in the following chapters.
DSP
The ST20-GP1 includes DSP hardware for processing signals from the GPS satellites. The DSP
module generates the pseudo-random noise (prn) signals, and de-spreads the incoming signal.
It consists of a down conversion stage that takes the 4 MHz input signal down to nominally zero
frequency both in-phase and quadrature (I & Q). This is followed by 12 parallel hardware channels
for satellite tracking, whose output is passed to the CPU for further software processing at a
programmable interval, nominally every millisecond.
CPU
The Central Processing Unit (CPU) on the ST20-GP1 is the ST20 32-bit processor core. It contains
instruction processing logic, instruction and data pointers, and an operand register. It directly
accesses the high speed on-chip memory, which can store data or programs. The processor can
access up to 4 Mbytes of memory via the programmable memory interface.
7/116
®

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