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Motorola DSP56000, 24-Bit Digital Signal Processor Section DSP56K Central Architecture Overview

Models: 24-Bit Digital Signal Processor DSP56000

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DSP56K Block Diagram Analog Signal Processing Stack Error Flag Bit Mode Register MR Symbols Reset OnCE Command Register OCR PLL Pins Low Power Divider LPD Fast Interrupt Service Routine No Update

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SECTION 2

DSP56K CENTRAL ARCHITECTURE

OVERVIEW

MOTOROLA

DSP56K CENTRAL ARCHITECTURE OVERVIEW

2 - 1

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Motorola DSP56000 manual Section DSP56K Central Architecture Overview, Motorola DSP56K Central Architecture Overview

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Contents

DSP56000 OnCE is a trade mark of Motorola, Inc Motorola Inc DSP56K Family Semiconductor OnCETM is a trade mark of Motorola, Inc Table of Contents Table of Contents Motorola Number Title Methods of Entering the Debug Mode Port a Overview Port a InterfaceON-CHIP Emulation Introduction Pipeline Information and Global Data BUS Register Appendix a Instruction SET Details Motorola List of Figures Vii Revision List of Figures Number Title Viii List of Figures Number Title List of Tables List of Tables Number Title Xii Section DSP56K Family Introduction Motorola DSP56K Family Introduction Section Contents Origin of Digital Signal Processing Introduction Analog Signal Processing Digital Signal Processing Benchmark Summary in Instruction Cycles Benchmark Number of Cycles Algorithm Multiplies Signal Processing Digital FilteringData Processing Numeric Processing Audio Signal Processing Image ProcessingGraphics Instrumentation Summary of DSP56K Family Features DSP Hardware Origins Summary of DSP56K Family Features Manual Organization Manual Organization Section DSP56K Central Architecture Overview Motorola DSP56K Central Architecture Overview PHASE-LOCKED Loop PLL Based Clocking DSP56K Central Architecture Overview Motorola Data Buses DSP56K Block Diagram Address Buses Internal Bus Switch Data ALUBit Manipulation Unit Address Generation Unit Memory Expansion Port Port a PHASE-LOCKED Loop PLL Based ClockingON-CHIP Emulator OnCE Section Data Arithmetic Logic Unit Motorola Data Arithmetic Logic Unit Data Arithmetic Logic Unit Motorola Overview and Data ALU Architecture DSP56K Block Diagram Data ALU Input Registers X1, X0, Y1, Y0 Data ALU MAC and Logic Unit MAC Unit Data ALU a and B Accumulators Data ALU Accumulator Registers Data Shifter/Limiter Accumulator ShifterLimiting Saturation Arithmetic Data Representation and Rounding Scaling Limited Data Values Integer-to-Fractional Data Conversion Bit Weighting and Alignment of Operands Integer/Fractional Number Comparison Integer/Fractional Multiplication Comparison 10 Convergent Rounding Double Precision Multiply Mode MSP1 LSP1 DP3 DP1 MSP2 LSP2 DP2 DP0 MSP1 LSP1 DP3 DP1 DP2 12 Single ⋅ Double Multiply Algorithm DP3 DP1 13 Single ⋅ Double Multiply-Accumulate Algorithm Data ALU Programming Model Data ALU Summary Data ALU Summary Data Arithmetic Logic Unit Motorola Section Address Generation Unit Motorola Address Generation Unit Addressing Programming ModelAddress Generation Unit Motorola AGU Architecture Address Generation Unit and Addressing ModesAddress Register Files Rn DSP56K Block Diagram Offset Register Files Nn Modifier Register Files Mn Address ALU Programming Model Address Output Multiplexers AGU Programming Model Address Register Files R0 R3 and R4 R7 Offset Register Files N0 N3 and N4 N7 Address Register Indirect Summary AddressingModifier Register Files M0 M3 and M4 M7 No Update Address Register Indirect ModesPostincrement By Postdecrement By Address Register Indirect No Update Postincrement By Offset Nn Address Register Indirect Postincrement Postdecrement By Offset Nn Address Register Indirect Postdecrement Indexed By Offset Nn Address Register Indirect Postincrement by Offset Nn Predecrement By Address Register Indirect Postdecrement by Offset Nn Address Modifier Arithmetic Types Address Register Indirect Indexed by Offset Nn 10 Address Register Indirect Predecrement Linear Modifier Mn=$FFFF Modulo Modifier 2.2.1 Mn=$0001 to $7FFF Address Modifier Summary Mmmm 11 Circular Buffer 12 Linear Addressing with a Modulo Modifier 13 Modulo Modifier Example 2.2.2 Mn=$8001 to $BFFF Reverse-Carry Modifier Mn=$0000 Bit-Reverse Addressing Sequence Example 14 Bit-Reverse Address Calculation Example Addressing 15 Address Modifier Summary Section Program Control Unit Motorola Program Control Unit Program Control Unit Motorola Overview Program Address Generator 24-Bit Program Decode Controller Program Control Unit PCU ArchitectureProgram Address Generator PAG Tion 7 Processing States Program Interrupt ControllerInstruction Pipeline Format Three-Stage Pipeline Program Control Unit Programming Model Program Counter Status Register Format Status Register Carry Bit Overflow BitZero Bit Negative Bit Limit Bit Extension BitScaling Bit Bit Scaling Mode Bits 10 Interrupt Masks Bits 8 Double Precision Multiply Mode Bit Trace Mode BitReserved Status Bit Loop Flag Bit Operating Mode RegisterSystem Stack Stack Pointer Register Format Stack Pointer Bits Stack Error Flag Bit SP Register Values Underflow Flag Bit Reserved Stack Pointer Registration BitsLoop Address Register Loop Counter Register DSP56K Central Processing Module Programming Model Section Instruction SET Introduction Motorola Instruction SET Introduction Instruction Groups Instruction SET Introduction Syntax Instruction FormatsInstruction SET Introduction Motorola Syntax Opcode OperandsXDB YDB MAC Operating Mode Register OMR Appendix a Instruction SET Details Operand Sizes Operand Sizes Data Organization in Registers Data ALU Registers Reading and Writing the ALU Extension Registers 16 Bit Bit Data Organization in Memory Addresses Program Control UnitMiscellaneous Operand References Program ReferencesStack References Register References Instruction Formats YX Memory References Addressing Modes Data or Control Register Direct Register Direct ModesAddress Register Direct Special Addressing Modes Immediate DataAbsolute Address Immediate Short Special Addressing Immediate Data Implicit Reference 5.3.6 I/O ShortAddressing Modes Summary Before Execution After Execution X X X Instruction Groups Arithmetic Instructions 11 Special Addressing Absolute Short Address 12 Special Addressing I/O Short Address Modiﬁer Operand Reference Addressing Mode Logical Instructions Andi EORLSL LSR Bit Manipulation Instructions Loop Instructions 13 Hardware do Loop LUA MoveMovec Movem Debug Program Control InstructionsJMP Reset JclrJset JSR Instruction Groups Instruction SET Introduction Motorola Section Processing States Motorola Processing States Exception Processing State Processing States Normal Processing StateProcessing States Motorola Instruction Pipeline Normal Processing StateInstruction Pipelining ORI #04,OMR Bootend Movec Inst Inst Inst 3 Inst Andi #00,MR Do instruction restrictions Summary of Pipeline-Related RestrictionsRestrictions near the end of do loops Enddo instruction restrictions RTI and RTS instruction restrictions Exception Processing State Interrupt Processing SP and SSH/SSL register manipulation restrictionsBCHG/BCLR/BSET SP Rn, Nn, and Mn register restrictions Interrupt Types Interrupt Priority Structure DSP56K Fast Interrupt DSP56K Long Interrupt Interrupt Priority Levels Status Register Interrupt Mask BitsException Priorities Within an IPL Interrupt Sources Interrupt Priority Level Bits External InterruptCentral Processor Interrupt Priorities Within an IPL Hardware Interrupt Sources Starting Address Interrupting an SWI Software Interrupt Sources Instruction Fetches from Memory Program Controller Pipeline Illegal Instruction Interrupt Serviced by a Long Interrupt Repeated Illegal Instruction Other Interrupt Sources Main Program Fetches Interrupt Arbitration Interrupt Instruction Fetch Instructions Preceding the Interrupt Instruction Fetch Interrupt Instruction Execution Fast Interrupt Service Routine Two Consecutive Fast Interrupts Exception Processing State Interrupt Processing 10 Long Interrupt Service Routine 11 JSR First Instruction of a Fast Interrupt 12 JSR Second Instruction of a Fast Interrupt Reset Processing State 13 Interrupting an REP Instruction 14 Interrupting Sequential REP Instructions Wait Processing State 15 Wait Instruction Timing Stop Processing State 16 Simultaneous Wait Instruction and Interrupt 17 Stop Instruction Sequence 18 Stop Instruction Sequence Followed by Irqa Stop Processing State Stop Processing State 19 Stop Instruction Sequence Recovering with Reset Stop Processing State Motorola Processing States Stop Processing State Processing States Motorola Section Port a Motorola Port a Port a Motorola Port a Overview Port a Interface Port a Signals Read/Write Control Signals Port a Address and Data Bus SignalsProgram Memory Select PS Data Memory Select DS Port a Bus Control Signals Read Enable RDWrite Enable WR Address A0-A15 Port a Interface Port a Interface Motorola Section PLL Clock Oscillator Motorola PLL Clock Oscillator PLL Clock Oscillator Introduction PLL Components PLL Pins PLL Operation ConsiderationsPLL Clock Oscillator Motorola PLL Components PLL Clock Oscillator IntroductionVCO Area Low Power Divider LPD Voltage Controlled Oscillator VCOFrequency Multiplier PLL Control Register Pctl Pctl Division Factor Bits DF0-DF3 Bits Division Factor Bits DF0-DF3 Pctl Xtal Disable Bit Xtld BitPctl Stop Processing State Bit Pstp Bit Pctl Clock Output Disable Bits COD0-COD1 Bits Pctl PLL Enable Bit PEN BitPstp and PEN Relationship PLL Pins Clock Output Disable Bits COD0-COD1Pctl Chip Clock Source Bit Csrc Bit Pctl Ckout Clock Source Bit Ckos Bit PLL Pins PLL Operation Considerations Hardware ResetOperating Frequency Changing the MF0-MF11 Bits Operation with PLL DisabledChange of DF0-DF3 Bits Stop Processing State Loss of LockCkout Considerations Synchronization Among EXTAL, CKOUT, and the Internal Clock Section ON-CHIP Emulation OnCE Introduction ON-CHIP Emulation Introduction Debug Serial Input/Chip Status 0 DSI/OS0 24X24+56 →56-BIT MAC OnCE Chip Status Information OS1 OS0Status Debug Serial Output DSO OnCE Controller and Serial Interface Debug Request Input DR OnCE Command Register OCROnCE Controller and Serial Interface RS4 RS3 RS2 RS1 RS0 OnCE Register Addressing OnCE Controller and Serial Interface Exit Command EX Bit Go Command GO BitRead/Write Command R/W Bit Action OnCE Decoder Odec OnCE Status and Control Register OscrMemory Breakpoint Control BC0-BC3 Bits MBO SWO TME BC3 Memory Breakpoint Control Table Trace Mode Enable TME BitReserved Bits 5-7 Memory Breakpoint Occurrence MBO Bit Trace Occurrence to BitOnCE Memory Breakpoint Logic Memory Address Latch Omal Isbkpt Memory Lower Limit Register Omllr OnCE Trace Logic Memory High Address Comparator OmhcMemory Low Address Comparator Omlc Memory Breakpoint Counter Ombc OnCE Trace Logic Block Diagram Trace Counter OTC Istrace Methods of Entering the Debug Mode External Debug Request During ResetExternal Debug Request During Normal Activity External Debug Request During Stop Enabling Trace Mode Pipeline Information and Global Data BUS RegisterSoftware Request During Normal Activity Enabling Memory Breakpoints Program Address BUS History Buffer Pipeline Instruction Latch Register OpilrGlobal Data Bus Register Ogdbr Read GDB Register PAB Register for Fetch Opabfr PAB Register for Decode Opabdr Serial Protocol Description OnCE CommandsPAB Fifo Using the OnCE Begin Debug Activity Displaying a Specified Register Motorola Motorola Motorola Returning from Debug Mode to Normal Mode Motorola Motorola Motorola Section Additional Support Motorola Additional Support User Support Motorola DSP Product Support Motorola DSP News Motorola Field Application Engineers13 Reference Books and Manuals Additional Support Motorola User Support Motorola Third Party DesignPrototyping Verification Macro Cross Assembler Features Motorola DSP Product Support Simulator Features 11.2.4 DSP56KCCx Language Compiler Features DSP56KADSx Application Development System 11.4 Dr. BuB Electronic Bulletin Board Dr. BuB Electronic Bulletin Board AudioCodec Routines Dtmf Routines Document ID Version Synopsis Size Fast Fourier Transforms Filters Floating-Point Routines Functions Lattice Filters Matrix Operations=AB+Q Reed-Solomon Encoder Sorting Routines SpeechStandard I/O Equates Tools and Utilities Following is a list of current DSP56200 related software Motorola Field Application Engineers Motorola DSP NewsTHIRD-PARTY Support Information 512 Reference Books and Manuals Training Courses 602 897-3665 or 800General DSP Digital Audio and Filters Adaptive Signal Processing Digital Audio Signal Processing AN AnthologyDigital Filters and Signal Processing ART of Digital AUDIO, Programming Language Controls CGM and CGI Fundamentals of Interactive Computer GraphicsGeometric Modeling GKS Theory and Practice Motorola DSP Manuals Numerical Methods Pattern Recognition Telecommunications Motorolaola Routines Section Contents Third Party Support Motorola DSP Product Support Application Development Systems Support Integrated Circuits DSP Applications Help Line 512 DSP Marketing Information 512DSP THIRD-PARTY Support Information 512 DSP University Support 512 DSP Training Courses 602 897-3665 or 800 12.13 Dr. BuB Electronic Bulletin Board Benchmarks Document ID Version Synopsis Size Filters Floating-Point Routines Functions Lattice Filters Document ID Version Current DSP56200 Related Software Reference Books and Manuals Digital Audio and Filters Leland B. Jackson Higham, MA Kluwer Academic Publishers Illumination and Color in Computer Generated Imagery Motorola DSP LINKER/LIBRARIAN Reference Manual Motorola DSP Assembler Reference Manual Motorola DSP Simulator Reference ManualMotorola DSP56100 Family Manual Motorola DSP56156 USER’S Manual Statistical Spectral ANALYSIS, a Nonprobabilistic Theory Digital Communications Appendix a Instruction SET Details Motorola Instruction SET Details Section A.10 Instruction Encoding Section A.9 Instruction Sequence RestrictionsInstruction SET Details Motorola Appendix a Introduction Instruction Guide Notation Address ALU Registers Operands Address Operands OMR Unary Operators Binary Operators Mode Register MR Symbols Condition Code Register CCR Symbols Other Symbols MSP Addressing Modes Table A-2 DSP56K Addressing Modes D a P X Y L XY Table A-3 DSP56K Addressing Mode Encoding M a Addressing Mode Modifiers Table A-4 Addressing Mode Modifier Summary Binary M0-M7 Hex M0-M7 Addressing Mode Arithmetic Condition Code Computation Condition Code Computation Scaling Mode Signed Integer Portion Scaling Mode Bit Computation Condition Code Computation Following notes apply to Table A-5 Parallel Move Descriptions Instruction Descriptions Operation Assembler Syntax Absolute ValueCondition Codes Instruction Format ABS DOpcode Instruction Fields Add Long with Carry Example ADC S,D Add ADD S,D Instruction Fields J d Shift Left and Add Accumulators Addl S,D Shift Right and Add Accumulators Addr S,D Logical Operation Assembler Syntax Logical S,D Immediate with Control Register CCR OMR Arithmetic Shift Accumulator Left ASL D Arithmetic Shift Accumulator Right ASR D Bit Test and Change CCR Condition Codes Not affected Set if bit tested is set. Cleared otherwise For other destination operands M R R R Effective Addressing ModeMemory SpaceS Bit Number bbbbb Absolute Short Address aaaaaa Memory SpaceS Bit Number bbbbb Short Address pppppp Memory SpaceS Bit Number bbbbb Destination Register D D D D Bchg Bit Test and Clear Condition Codes For other destination operands Bclr #n,Xea Bclr #n,Yea Bclr #n,Xaa Bclr #n,Yaa Bclr #n,Xpp Bclr #n,Ypp Bclr #n,D Bclr Bset Bit Test and Set Operation Assembler Syntax Bit Test and Set For other destination operands Bset #n,Xea Bset #n,Yea 0 0 1 0 1 A a 1 b b b b b 0 0 1 0 1 P p 1 b b b b b Bit Test and Set Instruction Format Bset Bit Test For destination operand a or B Btst #n,Xea Btst #n,Yea Btst #n,Xaa Btst #n,Yaa Btst #n,Xpp Btst #n,Ypp Btst #n,D Clear Accumulator Always cleared Always set CLR D Compare Instruction Fields S1,S2 J d Compare Magnitude Cmpm S1, S2 Debug Timing 4 oscillator clock cycles Memory 1 program word CC HS Cc Mnemonic ConditionCS LO Enter Debug Mode Conditionally DEBUGcc CMP Y0, BInstruction Fields Mnemonic CC HS CS LO Decrement by One DEC D Instruction Fields DIV S,D Divide InterationDescription DIV ABS a A,B #$FE,CCRDIV X0,A TFR A,B Signed quotient and a 48-bit signed remainder ADD X0,A Set if overflow bit V is set 0 0 0 0 0 J d 0 0 Start Hardware Loop Operation Assembler Syntax Start Hardware Loop At LA-2, LA-1, and LA Andi MRORI MR At LA-1 Jclr Reset Jset RTI JMP RTS Start Hardware Loop At LAJSR Wait Other Restrictions END2 END1 Xea, expr Absolute Short Address aaaaaa Memory SpaceS Immediate Short Data hhhh i i i i i i i Source OMR SSL Start Hardware Loop End Current do Loop Immediately before Enddo Opcode Instruction Fields Logical Exclusive or EOR S,D Illegal Instruction Interrupt Illegal None Timing 8 oscillator clock cycles Memory 1 program word Increment by One INC D Jcc Jump Conditionally 0 0 1 1 1 C C a a a a A a a a a a Jcc ea M R R R Jump if Bit Clear For other source operands Condition codes are not affected Jclr #n,Xea,xxxx Jclr #n,Yea,xxxx Jclr #n,Xaa,xxxx Jclr #n,Yaa,xxxx Jclr #n,Xpp,xxxx Jclr #n,Ypp,xxxx Source Register Jump 0 0 1 0 1 M M R R R 0 0 0 0 0 Jump to Subroutine Conditionally Example Instruction Format Effective Addressing Mode M M M R R R Mnemonic C C C C Jsclr Jump to Subroutine if Bit Clear Condition Codes Jsclr #n,Xea,xxxx Jsclr #n,Yea,xxxx Jsclr #n,Xaa,xxxx Jsclr #n,Yaa,xxxx Short Address aaaaaa Memory SpaceS Bit Number bbbbb Jsclr #n,S,xxxx Jsclr Jset Jump if Bit Set Operation Assembler Syntax Jump if Bit Set Jset #n,Xea,xxxx Jset #n,Yea,xxxx Jump if Bit Set Instruction Format Jset #n,Xpp,xxxx Jset #n,Ypp,xxxx Jset #n,S,xxxx Jump to Subroutine JSR Jump to Subroutine if Bit Set Example Jsset #n,Xea,xxxx Jsset #n,Yea,xxxx Jsset #n,Xaa,xxxx Jsset #n,Yaa,xxxx Jsset #n,Xpp,xxxx Jsset #n,Ypp,xxxx Jsset #n,S,xxxx Logical Shift Left LSL D Logical Shift Right LSR D Load Updated Address Dest. Addr. Reg. D Signed Multiply-Accumulate PLY ModeMAC X0,X0,A Instruction Fields S1∗S2 Sign Instruction Fields Sign Sssss Constant Signed Multiply-Accumulate and Round Signed Multiply-Accumulate and Round Macr Macr -Y0 #10, B ±S,#n,D Move Data Move S,D Condition Codes Move Move No Parallel Data Move Operation Assembler Syntax No Parallel Data Move Instruction Format Opcode Immediate Short Data Move Tinations are not allowed within the same instruction ABS B #$18,R1 Take absolute value of B, #$18R1 #xx=8-bit Immediate Short Data=iiiiiiii Sign Ext Zero Register to Register Data Move MACR-X0,Y0,A Instruction Format Opcode Instruction Fields Or D Sign Ext Zero Address Register Update Operation Assembler Syntax Address Register Update R R R Memory Data Move Operation Assembler Syntax Memory Data Move Example Memory Data Move Instruction Format Effective Register W Addressing ModeM R R Memory Data Move Sign Ext Zero Register W Absolute Short Address a a a a a a Instruction Descriptions Xea D1 S2 D2 Xea,D1 Memory and Register Data Move Class I Example Memory and Register Data Move Class II Example Class I Instruction Format Memory and Register Data Move Condition CodesR R Memory and Register Data Move S1,D1 Sign Ext Zero Memory and Register Data Move Class II Instruction Format Sign Ext Zero Move Opcode Memory Data Move Operation Assembler Syntax After Execution $00123456000000 Yea,D #xxxxxx,D Memory Data Move Sign Ext Zero Register W Absolute Short Address aaaaaa Instruction Descriptions Class Addl B,A B,X1 YR6-N6,B 2∗A+B A, update X1,B and R6 Register and Y Memory Data Move Register and Y Memory Data Move Class II Example By R1 and postincrement R1 Move Y0 to B S1,D1 Yea,D2 . . . . . S1,D1 S2,Yea S1,D1 #xxxxxx,D2 Register and Y Memory Data Move Instruction Fields S1 d Sign Ext Zero S2,D2 Register and Y Memory Data Move Class II Instruction Format Dest Long Memory Data Move Operation Assembler Syntax Long Memory Data Move CMP Y0,B Long Memory Data Move Instruction Format 0 0 L 0 L A a a XY Memory Data Move Operation Assembler Syntax XY Memory Data Move Example Mpyr X1,Y0,A XY Memory Data Move Instruction Format Sign Ext Zero Addressing Mode R r XY Memory Data Move Effective Register Move Control Register Movec Movec LC,X0 move LC into 2316 158 0 0 0 1 0 1 W 1 M M M R R R 0 s 1 d d d d d Memory Space s S1, D1 D d d Movec Xaa,D1 Movec S1,Xaa Movec Yaa,D1 Movec S1,Yaa Movec S1,D2 Movec S2,D1 Instruction Fields Register S1, D1 D d dMemory Space s S2, D2 e e e e e e Sign Ext Zero #xx=8-bit Immediate Short Data=i i i i i i i Move Program Memory Movem Movem PR5+N5, LC Movem S,Pea Movem Pea,D D d d d Sign Ext Zero Movem S,Paa Movem Paa,D Movep Movep $FFFE BCR Move Peripheral Data Instruction Format X or Y Reference Peripheral Space Effective Memory Space Addressing ModePeripheral Effective Peripheral Space S Addressing Mode Instruction Format P Reference Instruction Format Register Reference Peripheral Space S Peripheral W MPY MPY Signed Multiply Operation Signed Multiply Signed Multiply Instruction Fields S1∗S2 Signed Multiply Instruction Format Instruction Fields Sign Sssss constant Signed Multiply and Round Instruction SET Descriptions Instruction Fields S1∗S2 Q Q Q Sign k Mpyr ±S,#n,D Negate Accumulator NEG D No Operation PC+1PC NOP None Timing 2 oscillator clock cycles Memory 1 program word Normalize Accumulator Iteration Norm R3,A Normalize Accumulator Iteration Norm Logical Complement Not D Logical Inclusive or Operation Assembler Syntax Logical Inclusive or Or Immediate with Control Register Condition codes are not affected using these operands Temp LC Repeat Next InstructionTemp LC LC Temp S LC REP Immediately after REP Jclr RTI JMP RTS Jset StopJsclr Wait JSR Enddo REP MAC X1,Y1,A Condition Codes REP Xea REP Yea Absolute Short Address aaaaaa Memory Space s Immediate Short Data hhhh i i i i i i i i REP S Instruction Fields D d d d Dition Code Computation Reset On-Chip Peripheral Devices None Timing 4 oscillator clock cycles Memory 1 program word Round Accumulator RND a #$123456,X1 B,Y1 Condition Codes RND D Rotate Left Opcode Rotate Right ROR D Return from Interrupt Opcode Instruction Fields Return from Subroutine Opcode Subtract Long with Carry SBC Condition Codes SBC S,D Stop Instruction Processing Restrictions Subtract SUB S,D Shift Left and Subtract Accumulators Shift Left and Subtract Accumulators Subl Condition Codes Subl S,D Shift Right and Subtract Accumulators Shift Right and Subtract Accumulators Subr Condition Codes Subr S,D Operation Assembler Syntax Begin SWI exception processing Software InterruptSWI Opcode Instruction Fields Transfer Conditionally Cc’’ Mnemonic Condition CMP X0,A S1,D1 Mnemonic C C J D Transfer Data ALU Register TFR S,D Test Accumulator TST S Wait for Interrupt Condition Codes Appendix B Benchmark Programs Motorola Benchmark Programs Section B.1 Introduction Section B.2 Benchmark Programs Benchmark Programs Motorola Introduction Table B-1 27-MHz Benchmark Results for the DSP56001R27 Cycles Benchmark Programs Motorola Figure B-1 20-Tap FIR Filter Example Sheet 1 Benchmark Programs Motorola Figure B-1 20-Tap FIR Filter Example Sheet 2 Benchmark Programs Motorola Figure B-2 Radix 2, In-Place, Decimation-In-Time FFT Sheet 1 Benchmark Programs Motorola Benchmark Programs Motorola Benchmark Programs + yn 1wn-1 Ai1 bi1 Benchmark Programs Benchmark Programs Benchmark Programs $FFC0 Figure B-5 Benchmark Programs Benchmark Programs Benchmark Programs Benchmark Programs Benchmark Programs 128 3846 256 8656 512 19296 Benchmark Programs DSP56100 Family Manual Trouble Report DSP56100 Family Manual Trouble Report Index Index Index Index Index AGU -6 data ALU -19 program control unit -8 summary -17 Pvcc Zero Bit -10, A-17

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