dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 32
dsp56000
Manufacturer Part Number
dsp56000
Description
24-bit Digital Signal Processor Family Manual
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.DSP56000.pdf
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SECTION 3.1 DATA ARITHMETIC LOGIC UNIT ............................................. 3
SECTION 3.2 OVERVIEW AND DATA ALU ARCHITECTURE ....................... 3
SECTION 3.3 DATA REPRESENTATION AND ROUNDING .......................... 10
SECTION 3.4 DOUBLE PRECISION MULTIPLY MODE ................................. 16
SECTION 3.5 DATA ALU PROGRAMMING MODEL ....................................... 19
SECTION 3.6 DATA ALU SUMMARY .............................................................. 19
3.2.1 Data ALU Input Registers (X1, X0, Y1, Y0) ........................................ 5
3.2.2 MAC and Logic Unit ............................................................................ 6
3.2.3 Data ALU A and B Accumulators ........................................................ 7
3.2.4 Accumulator Shifter ............................................................................ 9
3.2.5 Data Shifter/Limiter ............................................................................. 9
3.2.5.1 Limiting (Saturation Arithmetic) .................................................. 9
3.2.5.2 Scaling ........................................................................................ 10
Freescale Semiconductor, Inc.
For More Information On This Product,
SECTION CONTENTS
DATA ARITHMETIC LOGIC UNIT
Go to: www.freescale.com
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