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參數資料
型號: ADSP-2171
廠商: Analog Devices, Inc.
英文描述: DSP Microcomputer(DSP 微計算機)
中文描述: 微機的DSP(數字信號處理器微計算機)
文件頁數: 16/52頁
文件大小: 685K
代理商: ADSP-2171
REV. A
–16–
ADSP-2171/ADSP-2172/ADSP-2173
E xample Code
T he following example is a code fragment that performs the
filter tap update for an adaptive (least-mean-squared algorithm)
filter. Notice that the computations in the instructions are
written like algebraic equations.
MF=MX 0*MY1 (RND), MX 0=DM (I2,M1);
MR=MX 0*MF (RND), AY0=PM (I6,MS);
DO adapt UNT IL CE;
AR=MR1 + AY0, MX 0=DM (I2,M1), AY0=PM (I6,M7);
adapt:
PM(I6,M6) =AR, MR=MX 0*MF (RND);
MODIFY (I2, M3);
MODIFY (I6, M7);
/* MF=error*beta */
/* Point to oldest data */
/* Point to start of data */
Interrupt E nable
T he ADSP-217x supports an interrupt enable instruction. Inter-
rupts are enabled by default at reset. T he instruction source
code is specified as follows:
Syntax:
ENA INT S;
Description:
Executing the ENA INT S instruction allows all
unmasked interrupts to be serviced again.
Interrupt Disable
T he ADSP-217x supports an interrupt disable instruction. T he
instruction source code is specified as follows:
Syntax:
DIS INT S;
Description:
Reset enables interrupt servicing. Executing the
DIS INT S instruction causes all interrupts to be
masked without changing the contents of the
IMASK register. Disabling interrupts does not
affect the autobuffer circuitry, which will operate
normally whether or not interrupts are enabled.
T he disable interrupt instruction masks all user
interrupts including the powerdown interrupt.
相關PDF資料
PDF描述
ADSP-2172 DSP Microcomputer(DSP 微計算機)
ADSP-2173 DSP Microcomputer(DSP 微計算機)
ADSP-2181BS-115 DSP Microcomputer
ADSP-2181BS-133 DSP Microcomputer
ADSP-2181KS-115 DSP Microcomputer
相關代理商/技術參數
參數描述
ADSP-2171BS-104 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 26MHz 26MIPS 128-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk
ADSP-2171BS-133 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 33.33MHz 33MIPS 128-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:16 BIT FXD PT PROC 33MIPS - Bulk 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT
ADSP-2171BST-104 制造商:Rochester Electronics LLC 功能描述:- Bulk
ADSP-2171BST-133 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 33.33MHz 33MIPS 128-Pin TQFP 制造商:Rochester Electronics LLC 功能描述:16BIT FXD PT PROC 33 MIPS - Bulk 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT
ADSP-2171BSTZ-133 功能描述:IC DSP CONTROLLER 16BIT 128TQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數字式信號處理器) 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI,以太網,RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA,FCBGA 供應商設備封裝:431-FCPBGA(20x20) 包裝:托盤
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