ModuleWare Reference Guide - Hornad

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Combinatorial PartsN-Input One-hot Multiplexer (omux)N-Input One-hot Multiplexer (omux)This part selects one of the input data ports (din0 to dinN) and passes it to theoutput port dout.The default part has two inputs din0 and din1 and sel is 2-bits wide.However, you can resize the component instance to implement parts withfour, eight (or any other multiple of two) input ports with a correspondingwidth sel port.The selection is based on the value of the N-bit wide input port sel and one ofthe two select modes controlled by the enumerated parameter sel_priority(Enabled, Disabled) associated with this port.In priority disabled mode, the scalar output port selerror will be assertedwhen the data on the port sel is not in one-hot encoded format. The polarityof selerror is controlled by the enumerated parameter selerror_type(ActiveHigh, ActiveLow).The parameter selerror_type has no effect in priority enabled mode andselerror is ignored.If only one of dout and selerror is connected, the HDL code for theunconnected port is optimized away.FunctionIf sel_priority = enabled:dout= din(i)= 'X…' (all bits are X)If sel_priority = disabled and selerror_type = ActiveHigh:if sel(i) = 1 and i = minimum(0,1, .. N-1)otherwiseselerror = 'X' always (irrespective of selerror_type)dout = din(i)= 'X…' (all bits are X)selerror = 0= 1if sel(i) = 1 and sel(j) = 0 for every j ≠ iOtherwiseif sel(i) = 1 and sel(j) = 0 for every j ≠ iOtherwiseIf sel_priority = disabled and selerror_type = ActiveLow:dout = din(i)= 'X... ' (all bits are X)selerror = 1= 0if sel(i) = 1 and sel(j) = 0 for every j ≠ iOtherwiseif sel(i) = 1 and sel(j) = 0 for every j ≠ iOtherwise74ModuleWare Reference Manual, Library Version 1.9September 18, 2008
Combinatorial PartsN-Input One-hot Multiplexer (omux)Truth TableThe following tables are for positive polarity. For negative polarity, invert the values.Priority EnabledThe default two-input multiplexer:Table 4-13. N-Input One-hot Multiplexer Truth Table — Priority Enabled, Two-Inputsel dout selerror00 X... X01 din0 X10 din1 X11 din0 XA four-input multiplexer:Table 4-14. N-Input One-hot Multiplexer Truth Table — Priority Enabled, Four-Inputsel dout selerror0000 X... XXXX1 din0 XXX10 din1 XX100 din2 X1000 din3 XAn eight-input multiplexer.Table 4-15. N-Input One-hot Multiplexer Truth Table — Priority Enabled, Eight-Inputsel dout selerror00000000 X... XXXXXXXX1 din0 XXXXXXX10 din1 XXXXXX100 din2 XXXXX1000 din3 XXXX10000 din4 XXX100000 din5 XModuleWare Reference Manual, Library Version 1.9 75September 18, 2008
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ModuleWare Reference Manualfor the
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Table of ContentsGated OR (or1) . .
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Table of ContentsBufif0 Primitive (
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List of TablesTable 5-18. N-Way Spl
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List of TablesTable 7-20. RS Flip-F
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List of TablesTable 10-41. XNOR Pri
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IntroductionNaming ConventionsNamin
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IntroductionSupported VHDL Packages
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IntroductionReset/Clear BehaviorYou
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IntroductionSet/Preset BehaviorSet/
Page 24 and 25: IntroductionGate BehaviorFunctioncl
Page 26 and 27: IntroductionEnable/Load BehaviorFun
Page 28 and 29: IntroductionVHDL Coding StyleNotes
Page 30 and 31: IntroductionDesign Rule CheckingFor
Page 32 and 33: IntroductionSlice SupportOtherwise
Page 34 and 35: Logic PartsN-Input AND Gate (and)N-
Page 36 and 37: Logic PartsN-Input XOR Gate (xor)N-
Page 38 and 39: Logic PartsN-Input NOR Gate (nor)N-
Page 40 and 41: Logic PartsAssign (assignment)Assig
Page 42 and 43: Logic PartsBit Setter (bitset)suffi
Page 44 and 45: Logic PartsBus Driver (busdrive)Bus
Page 46 and 47: Logic PartsGated OR (or1)Gated OR (
Page 48 and 49: Logic PartsInverter (inv)Inverter (
Page 50 and 51: Logic PartsReduction OR (tor)Reduct
Page 52 and 53: Logic PartsThree-state Buffer (trib
Page 54 and 55: Logic PartsThree-state bus (tribus)
Page 56 and 57: Logic PartsVariable Width N-Input A
Page 58 and 59: Logic PartsVariable Width N-Input X
Page 60 and 61: ConstantsConstant Value (constval)C
Page 62 and 63: ConstantsPower (vdd)Power (vdd)This
Page 64 and 65: Combinatorial PartsDecoder, Separat
Page 66 and 67: Combinatorial PartsDecoder, Separat
Page 68 and 69: Combinatorial PartsDecoder, Combine
Page 70 and 71: Combinatorial PartsEncoder (encoder
Page 72 and 73: Combinatorial PartsN-Input Multiple
Page 76 and 77: Combinatorial PartsN-Input One-hot
Page 78 and 79: Combinatorial PartsW-Bit Multiplexe
Page 80 and 81: Combinatorial PartsW-Bit Multiplexe
Page 82 and 83: Bit Manipulation PartsN-Bus Merge (
Page 84 and 85: Bit Manipulation PartsN-Bus Merge (
Page 86 and 87: Bit Manipulation PartsN-Way Splitte
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Page 90 and 91: Bit Manipulation PartsBus Fill (wor
Page 92 and 93: Bit Manipulation PartsFixed Bit Sel
Page 94 and 95: Bit Manipulation PartsFixed Shifter
Page 96 and 97: Bit Manipulation PartsFixed Shifter
Page 98 and 99: Arithmetic Parts181 ALU (alu181)181
Page 100 and 101: Arithmetic Parts181 ALU (alu181)ovf
Page 102 and 103: Arithmetic PartsAbsolute Value (abs
Page 104 and 105: Arithmetic PartsAccumulator (acc)ad
Page 106 and 107: Arithmetic PartsAdder (add)Adder (a
Page 108 and 109: Arithmetic PartsAdder (add)Table 6-
Page 110 and 111: Arithmetic PartsAdder Subtractor (a
Page 112 and 113: Arithmetic PartsAdder Subtractor (a
Page 114 and 115: Arithmetic PartsComparator (cmp)Com
Page 116 and 117: Arithmetic PartsDecrementer (dec)De
Page 118 and 119: Arithmetic PartsIncrementer (inc)In
Page 120 and 121: Arithmetic PartsIncrementer Decreme
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Arithmetic PartsLeft Shifter (lshif
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Arithmetic PartsMultiplier (mult)A
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Arithmetic PartsRight Shifter (rshi
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Arithmetic PartsSubtractor (sub)Sub
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Arithmetic PartsSubtractor (sub)Tab
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Arithmetic PartsUni-function Compar
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Arithmetic PartsVariable Shifter (v
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Arithmetic PartsVariable Shifter (v
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Register PartsD Flip-Flop (adff)D F
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Register PartsD Flip-Flop (adff)Par
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Register PartsD Latch (dlatch)If lo
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Register PartsD Latch (dlatch)Table
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Register PartsJK Flip-Flop (jkff)Fu
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Register PartsJK Latch (jklatch)JK
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Register PartsJK Latch (jklatch)Asy
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Register PartsRS Flip-Flop (rsff)RS
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Register PartsRS Flip-Flop (rsff)Ta
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Register PartsRS Latch (rslatch)Fun
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Register PartsRS Latch (rslatch)Syn
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Register PartsT Flip-Flop (tff)Func
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Register PartsT Latch (tlatch)T Lat
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Register PartsT Latch (tlatch)Async
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Register PartsT Latch (tlatch)168Mo
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Sequential PartsBank of Flip-Flops
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Sequential PartsBank of Flip-Flops
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Sequential PartsBank of Latches (la
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Sequential PartsClock Divider (clkd
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Sequential PartsConfigurable Counte
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Sequential PartsModulo Counter (mod
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Sequential PartsParallel to Serial
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Sequential PartsParallel to Serial
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Sequential PartsSerial to Parallel
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Sequential PartsThree-state Bank of
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Sequential PartsThree-state Bank of
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Memory PartsDual Port RAM (ram2p)Du
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Memory PartsFirst In First Out (fif
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Memory PartsFirst In First Out (fif
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Memory PartsSingle Port RAM (ram)Si
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Memory PartsRegister File (regfile)
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Memory PartsROM (rom)ROM (rom)This
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Memory PartsROM (rom)The correspond
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Memory PartsROM (rom)Extended segme
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Memory PartsStack (stack)The reset
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Memory PartsStack (stack)Parameters
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Memory PartsSynthesizable Dual-Port
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Memory PartsSynthesizable Single-Po
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Primitive PartsIntroductionIntroduc
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Primitive PartsIntroductionTable 10
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Primitive PartsBuffer Primitive (pb
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Primitive PartsBufif0 Primitive (pb
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Primitive PartsBufif1 Primitive (pb
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Primitive PartsCMOS Primitive (pcmo
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Primitive PartsNAND Primitive (pnan
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Primitive PartsNOR Primitive (pnor)
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Primitive PartsNOT Primitive (pnot)
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Primitive PartsNotif0 Primitive (pn
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Primitive PartsNotif1 Primitive (pn
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Primitive PartsPMOS Primitive (ppmo
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Primitive PartsPullup Primitive (pp
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Primitive PartsRCMOS Primitive (prc
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Primitive PartsRPMOS Primitive (prp
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Primitive PartsXNOR Primitive (pxno
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Stimulus PartsSimple Clock (clk)Sim
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Stimulus PartsCompound Clock (cmpdc
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Stimulus PartsPulse (pulse)Pulse (p
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Stimulus PartsConstant Wave (constw
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Stimulus PartsRandom Value (random)
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Stimulus PartsRandom Value (random)
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Stimulus PartsCounter Value (counte
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Stimulus PartsCounter Value (counte
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Name ListName Description Pagedlatc
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Name ListName Description Pagesplit
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Function ListFunction Description P
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Function ListFunction Description P
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Function List286ModuleWare Referenc
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A BC D E F G H I J K L M N O P Q R
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A BC D E F G H I J K L M N O P Q R
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4. RESTRICTIONS ON USE. You may cop
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15. CONTROLLING LAW, JURISDICTION A
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