Chapter2 TMS 32C5X

Chapter2 TMS 32C5X - Texas Instruments TMS 32C5x DSP...

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Texas Instruments TMS 32C5x DSP
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Characteristics of TI ‘C5x DSPs
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TI ‘C5x DSP CPU Instruction Fetch Data Processing
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Key DSP Instructions MAC pma,dma – multiply/accumulate ACC + P -> ACC pma x dma -> P (repeatable with pma+1) MACD pma,dma -multiply/accumulate/delay ACC + P -> ACC pma x dma -> P dma -> dma+1 (move data for delay) (repeatable with pma+1)
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Other key instructions T register used with multiplier LT dma/ind : mem -> TREG0 LTA dma/ind : load T, ACC=ACC+P LTD dma/ind : load T, ACC=ACC+P,move data LTP dma/ind : load T, P->ACC
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Low-Pass Filter IN Xn,PA0 ;read x(n) ZAP ;A=P=0 MAC B,Yn MAC C,Xn APAC ;A=A+P SACH Yn ;save LSB OUT Yn,PA1 ;out y(n) ) ( ) 1 ( ) 1 ( ) ( ) ( ) 1 ( ) ( ) ( 1 ) 1 ( ) 1 ( ) ( ) ( ) ( 1 1 n x b n by n y z X b z Y bz z Y bz b b z z b z X z Y z H + = + = = = =
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Finite Impulse Response (FIR) Filter LARP AR3 ;AR3 active pointer LAR AR3,#X0 ;point to X(n) ZAP ;A=P=0 MAC C0,*- ;c0*x(n) MAC C1,*- ;+c1*x(n-1)
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This note was uploaded on 09/23/2011 for the course ELEC 6260 taught by Professor Nelson,v during the Summer '08 term at Auburn University.

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Chapter2 TMS 32C5X - Texas Instruments TMS 32C5x DSP...

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