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6.3.5.3 Special Addressing ModesThe special addressing modes do not use specific registers to specify an effectiveaddress. These modes specify the operand or the operand address in a field of theinstruction, or they implicitly reference an operand. Figure examples are given for each ofthe special addressing modes discussed in the following paragraphs.6.3.5.3.1 Immediate DataClassified as a program reference, this addressing mode requires one word of instructionextension containing the immediate data. Figure 6-7 shows three examples. Example Amoves immediate data to register AO without affecting A 1 or A2. Examples Band C zerofill register AO and sign extend register A2.-6.3.5.3.2 Absolute AddressThis addressing mode requires one word of instruction extension containing the absoluteaddress. Figure 6-8 shows that MOVE Y:$5432,BO copies the contents of address $5432into BO without changing memory location $5432, register B1, or register B2. Thisaddressing mode is classified as both a memory reference and program reference. The16-bit absolute address is stored in the 16 LSBs of the extension word; the eight MSBsare zero filled.6.3.5.3.3 Immediate ShortThe 8- or 12-bit operand, which is in the instruction operation word, is classified as a programreference. The immediate data is interpreted as an unsigned integer (low-orderportion) or signed fraction (high-order portion), depending on the destination register. Figure6-9 shows the use of immediate short addressing in four examples.6.3.5.3.4 Short Jump AddressThe operand occupies 12 bits in the instruction operation word, which allows addresses$OOOO-$OFFF to be accessed (see Figure 6-10). The address is zero extended to 16 bitswhen used to address program memory. This addressing mode is classified as a programreference.6.3.5.3.5 Absolute ShortThe address of the operand occupies six bits in the instruction operation word, allowingaddresses $0000-$003F to be accessed (see Figure 6-11). Classified as both a memoryreference and program reference, the address is zero extended to 16 bits when used toaddress an operand or program memory.
EXAMPLE A: IMMEDIATE INTO 24-BIT REGISTER(MOVE 1t$123456,AO)BEFORE EXECUTIONA2 A1 AO55 4847 2423 0I X7 023 023 0X I X X X X X xl X X X X X X IAFTER EXECUTIONA2 A1 AO55 48 47 24 23 0I X7 0 23 0 23 0X I X X X X X xl 1 2 3 4 5 6 IEXAMPLE B:POSITIVE IMMEDIATE INTO 56-BIT REGISTER(MOVE 1t$123456,A)BEFORE EXECUTIONA2 A1 AO55 48 47 24 23 0I X7 0 23 0 23 0X I X X X X X xl X X X X X X IEXAMPLE C: NEGATIVE IMMEDIATE INTO 56-BIT REGISTER(MOVE 1t$801234,A)AFTER EXECUTIONA2 A1 AO55 4847 2423 0I 0 0 I 1 2 3 4 5 61 0 0 0 0 0 0 I7 023 023 0-BEFORE EXECUTIONA2 A1 AO55 4847 2423 0I X7 023 023 0X I X X X X X xl X X X X X X IAFTER EXECUTIONA2 A1 AO55 48 47 24 23 0IFF I 8 0 1 2 3 41 0 0 0 0 0 0 I7 023 023 0Assembler Syntax: ItXXXXXXMemory Spaces: P:Additional Instruction Execution Time (Clocks): 2Additional Effective Address Words: 1Figure 6-7 Special Addressing -Immediate Data
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DSP56K FAMILY INTRODUCTIONDSP56K CE
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Motorola reserves the right to make
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Table of Contents (Continued)Paragr
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ParagraphNumberTable of Contents (C
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FigureNumberList of Figures (Contin
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List of Tables (Continued)TablePage
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1.1 INTRODUCTIONThe DSP56K family i
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Fewer componentsStable, determinist
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Digital FilteringFinite Impulse Res
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architecture matches the shape of t
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• DSP56001 Compatibility - All me
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SECTION 2DSP56K CENTRAL ARCHITECTUR
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--I«a:w:ca.ffi~a. a.24-Bit 56KModu
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-rectly addressable registers: the
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3.1 DATA ARITHMETIC LOGIC UNITThis
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3.2.1 Data ALU Input Registers (X1,
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"""""" 24 BITS;:~:>~~::~~~:~:~:~:::
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3.2.4 Accumulator ShifterThe accumu
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Table 3-1 Limited Data ValuesDestin
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_--- N BITS ---_TWOS COMPLEMENT INT
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CASE I: IF AO < $800000 (1/2), THEN
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one instruction cycle. The ANDI ins
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3.5 DATA ALU PROGRAMMING MODELThe D
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4.1 ADDRESS GENERATION UNIT AND ADD
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!---LOWADDRESS ALU -----I~.j.I.....
Page 61 and 62: •••••••• _ ........
Page 63 and 64: 4.4.1 Address Register Indirect Mod
Page 65 and 66: EXAMPLE: MOVE BO,V: (R1)+BEFORE EXE
Page 67 and 68: EXAMPLE: MOVE X1,X: (R2)+N2BEFORE E
Page 69 and 70: EXAMPLE: MOVE Y1,X: (RS+NS)BEFORE E
Page 71 and 72: Table 4-2 Address Modifier SummaryM
Page 73 and 74: ADDRESS -f-_POINTERUPPER BOUNDARYiM
Page 75 and 76: EXAMPLE: MOVE XO,X:(R2)+NLET:M2 00
Page 77 and 78: oundary gives a 16-bit binary numbe
Page 79 and 80: 4.4.2.4 Address-Modifier-Type Encod
Page 81: SECTION 5PROGRAM CONTROL UNIT-
Page 84 and 85: X MEMORYRAM/ROMIII E:XPAf'JSIC)N LI
Page 86 and 87: interruptible since they are fetche
Page 88 and 89: PROGRAM CONTROL UNIT-23 1615 023 16
Page 90 and 91: The GGR is a special purpose contro
Page 92 and 93: If S 1 =0 and SO=O (no scaling)then
Page 94 and 95: -23 876543210I * 1* JSO I * I Mel y
Page 96 and 97: 5.4.5.1 Stack Pointer (Bits 0-3)The
Page 98 and 99: -DATA ARITHMETIC LOGIC UNITINPUT RE
Page 101 and 102: 6.1 INSTRUCTION SET INTRODUCTIONThe
Page 103 and 104: shown in Figure 6-2. Most instructi
Page 105 and 106: 23 87 0L...-I ___-'-I_---'I BUS~ LS
Page 107 and 108: The MR and CCR may be accessed indi
Page 109 and 110: 6.3.4 Operand ReferencesThe DSP sep
Page 111: Some address register indirect mode
Page 115 and 116: EXAMPLE A: IMMEDIATE SHORT INTO AO,
Page 117 and 118: EXAMPLE A: MOVE P: $3200,XOBEFORE E
Page 119 and 120: Table 6-1 Addressing Modes SummaryA
Page 121 and 122: 6.4.2 LogicallnstructlonsThe logica
Page 123 and 124: START OF LOOP1)SP+ 1 • SP; LA. SS
Page 125 and 126: OPCODE/OPERANDSPARALLEL MOVE EXAMPL
Page 127: SECTION 7PROCESSING STATES-
Page 130 and 131: Each instruction requires a minimum
Page 132 and 133: second instruction of the downloade
Page 134 and 135: The DO instruction is another instr
Page 136 and 137: SP and SSH/SSL register manipulatio
Page 138 and 139: 7.3.1 Interrupt TypesThe DSP56K rel
Page 140 and 141: Table 7-2 Status Register Interrupt
Page 142 and 143: 7.3.3 Interrupt SourcesInterrupts c
Page 144 and 145: interrupts makes it very useful for
Page 146 and 147: MAINPROGRAMFETCHESLONG INTERRUPTSER
Page 148 and 149: 7.3.3.3 Other Interrupt SourcesOthe
Page 150 and 151: 7.3.4 Interrupt ArbitrationInterrup
Page 152 and 153: 7.3.7 Interrupt Instruction Executi
Page 154 and 155: MAINPROGRAMMEMORYINTERRUPT SYNCHRON
Page 156 and 157: MAINPROGRAMFETCHESINTERRUPTSYNCHRON
Page 158 and 159: MAINPROGRAMFAST INTERRUPTVECTORLONG
Page 160 and 161: MAINPROGRAMFETCHESNTERRUPTSYN8HRCNZ
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7.5 WAIT PROCESSING STATEThe WAIT i
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The stop processing state halts all
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the first instruction fetch). If th
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RESET -----------------------------
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16 - BIT INTERNALADDRESS BUSESX ADD
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8.2.2.1 Address (AO-A15)These three
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SECTION 9PLL CLOCK OSCILLATOR-
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X MEMORYRAM/ROMEXPANSION24-Bit56KMo
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23 22 21 20 19 18 17 16 15 14 13 12
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cleared. To enable rapid recovery w
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-CLVCCVCC for the CKOUT output. The
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4. For all input frequencies which
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While the PLL is regaining lock, th
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10.1 ON-CHIP EMULATION INTRODUCTION
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10.2.2 Debug Serial Clock/Chip Stat
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76543210I R/W I GO I EX I RS41 RS31
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shifted in (so a new command is ava
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10.3.4.4 Software Debug Occurrence
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10.4.4 Memory High Address Comparat
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10.6.1 External Debug Request Durin
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PABCIRCULARBUFFERPOINTERDSCKDSOFigu
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are serially available to the exter
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k. ACKI. ClKm. Send command READ FI
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19. ACK20. Send command READ GDB RE
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10.11.6.1 Case 1: Return To The Pre
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SECTION 11ADDITIONAL SUPPORTDr. BuB
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The following is a partial list of
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• In-line assembler language code
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I Document 10 I Version Synopsis I
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I Document ID I Version Synopsis I
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11.5 MOTOROLA DSP NEWSThe Motorola
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DIGITAL SIGNAL PROCESSINGAlan V. Op
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C Programming Language:Controls:. C
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Image Processing:DIGITAL IMAGE PROC
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LINEAR PREDICTION OF SPEECHJ. D. Ma
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A.1 APPENDIX A INTRODUCTIONThis app
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XnYnTable A-1 Instruction Descripti
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Table A-1 Instruction Description N
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Table A-1 Instruction Description N
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Table A-2 DSP56K Addressing ModesAd
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The address register indirect addre
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A.SCONDITION CODE COMPUTATION15 14
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S1 SO Scaling Mode Signed Integer P
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Table A-5 Condition Code Computatio
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A.7 INSTRUCTION DESCRIPTIONSThe fol
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ABSAbsolute ValueABSInstruction For
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ADC Add Long with Carry ADCresult.
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ADD Add ADDCondition Codes:15 14 13
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ADDL Shift Left and Add Accumulator
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ADDR Shift Right and Add Accumulato
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ANDLogical ANDANDInstruction Format
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ANDIAND Immediate with Control Regi
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ASL Arithmetic Shift Accumulator Le
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ASR Arithmetic Shift Accumulator Ri
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BCHG Bit Test and Change BCHGExplan
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BCHGBit Test and ChangeBCHGInstruct
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BCHGBit Test and ChangeBCHGInstruct
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BCHG Bit Test and Change BCHGNotes:
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BCLR Bit Test and Clear BCLRExplana
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BClRBit Test and ClearBClRInstructi
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BClRBit Test and ClearBClRInstructi
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BClR Bit Test and Clear BClRNotes:
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BSET Bit Test and Set BSETExplanati
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BSETBit Test and SetBSETInstruction
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BSETBit Test and SetBSETInstruction
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BSET Bit Test and Set BSETNotes: If
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BTSTBit TestBTSTCondition Codes:115
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8TSTBit Test8TSTInstruction Format:
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8TSTBit Test8TSTInstruction Format:
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CLRClear AccumulatorCLRInstruction
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CMP Compare CMPCondition Codes:15 1
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CMPM Compare Magnitude CMPMConditio
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DEBUGEnter Debug ModeDEBUGOpcode:23
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DEBUGcc Enter Debug Mode Conditiona
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DEC Decrement by One DECInstruction
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DIV Divide Interation DIVThe DIV in
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DIV Divide Interation DIVNote that
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DIVInstruction Format:DIV S,DDivide
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DO Start Hardware Loop DOexecuted 6
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DOStart Hardware LoopDOAt LAOther R
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DOStart Hardware LoopDOInstruction
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DOStart Hardware LoopDOInstruction
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DO Start Hardware Loop DONotes: If
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ENDDO End Current DO Loop ENDDOExpl
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EOR Logical Exclusive OR EORInstruc
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ILLEGALIllegal Instruction Interrup
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INC Increment by One INCInstruction
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Jcc Jump Conditionally JccRestricti
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JccJump ConditionallyJccEffectiveAd
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JCLR Jump If Bit Clear JCLRRestrict
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JCLRJump If Bit ClearJCLRInstructio
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JCLR Jump If Bit Clear JCLRInstruct
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JMPJumpJMPInstruction Fields:xxx=12
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JSccJump to Subroutine Conditionall
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JScc Jump to Subroutine Conditional
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JSCLR Jump to Subroutine if Bit Cle
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JSCLRJump to Subroutine If Bit Clea
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JSCLRJump to Subroutine If Bit Clea
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JSCLR Jump to Subroutine If Bit Cle
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JSET Jump if Bit Set JSETRestrictio
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JSETJump if Bit SetJSETInstruction
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JSET Jump If Bit Set JSETInstructio
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JSR Jump to Subroutine JSRInstructi
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JSSET Jump to Subroutine if Bit Set
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JSSETJump to Subroutine if Bit SetJ
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JSSET Jump to Subroutine if Bit Set
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LSL Logical Shift Left LSLCondition
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LSR Logical Shift Right LSRConditio
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LUALoad Updated AddressLUACondition
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MAC Signed Multiply-Accumulate MACC
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MACSigned Multiply-AccumulateMACTim
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MACR Signed Multiply-Accumulate and
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MACR Signed MUltiply-Accumulate and
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MOVE Move Data MOVEExplanation of E
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MOVE Move Data MOVEWhen a 56-bit ac
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No Parallel Data MoveInstruction Fo
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I Immediate Short Data Move IExampl
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I Immediate Short Data Move IDDD d
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R Register to Register Data Move RE
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R Register to Register Data Move RI
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uAddress Register UpdateuInstructio
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X: X Memory Data Move X:Note:Due to
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X: X Memory Data Move X:S D DS,D d
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X: X Memory Data Move X:S D DS,D d
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X:R X Memory and Register Data Move
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Y: Y Memory Data Move Y:Note: This
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Y: Y Memory Data Move Y:S D DS,D d
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Y: Y Memory Data Move Y:S D DS,D d
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R:V Register and V Memory Data Move
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R:V Register and Y Memory Data Move
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R:V Register and Y Memory Data Move
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L: Long Memory Data Move L:Example:
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L: Long Memory Data Move L:Instruct
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X: Y: xv Memory Data Move X: Y:Exam
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X: Y: xv Memory Data Move X: Y:S1 D
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MOVEC Move Control Register MOVECst
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MOVEC Move Control Register MOVECCo
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MOVECMove Control RegisterMOVECInst
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MOVEC Move Control Register MOVECTi
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MOVEM Move Program Memory MOVEMoper
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MOVEM Move Program Memory MOVEMInst
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MOVEMMove Program MemoryMOVEMInstru
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MOVEP Move Peripheral Data MOVEPist
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MOVEP Move Peripheral Data MOVEPCon
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MOVEP Move Peripheral Data MOVEPIns
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MOVEP Move Peripheral Data MOVEPIns
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MPY Signed Multiply MPYExplanation
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MPY Signed Multiply MPYInstruction
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MPYR Signed Multiply and Round MPYR
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MPYR Signed Multiply and Round MPYR
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NEGNegate AccumulatorNEGInstruction
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NOPNo OperationNOPInstruction Forma
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NORM Normalize Accumulator Iteratio
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NOTLogical ComplementNOTInstruction
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ORLogical Inclusive ORORInstruction
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ORI OR Immediate with Control Regis
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REP Repeat Next Instruction REPRest
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REPRepeat Next InstructionREPInstru
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REPRepeat Next InstructionREPInstru
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REP Repeat Next Instruction REPNote
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RESETReset On-Chip Peripheral Devic
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RND Round Accumulator RNDConvergent
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RNDRound AccumulatorRNDInstruction
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ROL Rotate Left ROLCondition Codes:
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ROR Rotate Right RORCondition Codes
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RTIReturn from InterruptRTIConditio
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RTSReturn from SubroutineRTSInstruc
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sec Subtract Long with Carry secExp
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secSubtract Long with CarrysecInstr
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STOPStop Instruction ProcessingSTOP
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SUB Subtract SUBCondition Codes:S -
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SUBL Shift Left and Subtract Accumu
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SUBR Shift Right and Subtract Accum
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SWISoftware InterruptSWICondition C
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Tee Transfer Conditionally Teetion
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Tee Transfer Conditionally TeeInstr
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TFR Transfer Data ALU Register TFRC
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TSTTest AccumulatorTSTInstruction F
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WAIT Wait for Interrupt WAITConditi
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including the number of words per i
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5. Compute final results.Thus, base
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JLC (R2+N2)will requireand will exe
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Table A-6 Instruction Timing Summar
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Note that the "ap" term in Table A-
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Table A-14 Memory Access Timing Sum
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Other RestrictionsDO SSH,xxxxJSR to
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Immediately before MOVEC from SSH o
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A.9.S REP RestrictionsThe REP instr
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Table A-18 Triple-Bit Register Enco
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Table A-24 Program Control Unit Reg
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R: Register to Register Parallel Da
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JSSETJSSET#n,X:pp,XXXX#n,Y:pp,xxxx2
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JSSET#n,S,xxxx23 16 15 87 000001011
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BCHGBCHG#n,X:aa#n,Y:aa23 16 15 87 0
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MOVE(M)MOVE(M)S,P:aaP:aa,DREP #XXXR
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LUAea,O23 16 15 87 0I 0 0 0 0 0 1 0
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ENDDO23 16 15 87 00 0 0 0 0 0 0 o 1
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Table A-28 Operation Code QQQ Decod
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Table A-30 Special Case #10 P E R C
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NEGD23 87 43 0DATA BUS MOVE FIELDLS
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ADDRS,D23 87 43 oDATA BUS MOVE FIEL
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lEI
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Table 8-1 27-MHz Benchmark Results
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.*._---*-----*-------**-------....
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;Latest Revision - September 30, 19
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All coefficients are divided by 2:w
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Real input FFT based on Glenn Bergl
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countountcountcountorg y:coefset 0d
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; Real-Valued FFT for MOTOROLA DSP5
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; first group in the last passmove
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A Accumulator ....... ' ...........
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-H- fast ..........................
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PGND ..............................
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DSP56K FAMILY INTRODUCTIONDSP56K CE
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