參數(shù)資料
型號(hào): ST20GP6
英文描述: MAX 7000 CPLD 256 MC 208-RQFP
中文描述: GPS處理器
文件頁數(shù): 7/116頁
文件大?。?/td> 1107K
代理商: ST20GP6
ST20-GP1
7/116
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST20-GP6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR
ST20GP6CT33S 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR
ST20GP6CX33S 功能描述:射頻無線雜項(xiàng) GPS Processor RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
ST20GP6CX33STR 功能描述:射頻無線雜項(xiàng) GPS Processor RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
ST20GP6X33S 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:GPS PROCESSOR