XPLA Designer v2.1 User's Manual

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Begin the comment with a slash-star and end the comment with a star-slash - just likecomments in ‘C’ programs. This type of comment can extend over more than one line./* This is a ‘C’ style comment that is recognized by <strong>XPLA</strong> <strong>Designer</strong>’s parser. Itmay extend over more than one line. */Number TypesNumbers are represented in four different bases. Figure 20 describes the format for eachbase (note that the decimal representation can have two different formats). The examplecolumn indicates how the decimal number 69 would be represented in each of the differentbases.BASE NAME BASE SYMBOL EXAMPLEBinary 2 ^b ^b1000101Octal 8 ^o ^o10005Decimal 10 69Decimal 10 ^d ^d69Hexadecimal 16 ^h ^h45Figure 2034
Order of OperationsFigure 21 defines all operators in PHDL that can be used to evaluate expressions and theirorder of resolution. Operators with equal priority will be evaluated from left to right inthe expression. Be safe when writing code that has multiple operators on a line - use alot of ( parenthesis ) - they are free and they will eliminate really annoying operatorprecedence errors that compile O.K. and generate logic errors in the design!Priority OPERATOR DESCRIPTION EXAMPLE1 - Negate (2’s complement) -A1 ! NOT !A2 & AND A & B2 Shift right A >> 12 * Multiplication A * B2 / Unsigned division A / B2 % Modulus A % B3 + Addition A + B3 - Subtraction A - B3 # OR A # B3 $ XOR A $ B3 !$ XNOR A !$ B4 == Equal to A == B4 != Not equal to A != B4 < Less than A < B4 B4 >= Greater than or equal to A >= BFigure 21PHDL File Format At a GlanceFigure 22 shows an example of a PHDL design file. The design is two 16 bit loadable, bidirectional,enabled, resetable counters. Bi-directional pins are used for the output and theload so that each counter can still be loaded when a 32 macrocell part is targeted. The fileis broken into four distinct sections: the header, the declarations, the design description,and the end. Below is a brief description of each of these sections; greater detail isprovided later in this chapter.35
Page 1 and 2: XPLA Designer
Page 3 and 4: XPLA Designer version 2.1 User’s
Page 5 and 6: SCL Brief .........................
Page 7 and 8: ARITHMETIC CIRCUIT: 4 X 4 MULTIPLIE
Page 9 and 10: the user through this design proces
Page 11 and 12: Device FittingDevice fitting is whe
Page 13 and 14: Chapter 2 Installing XPLA DesignerS
Page 15 and 16: Chapter 3XPLA TM Architecture Overv
Page 17 and 18: The XPLA TM architecture is very ac
Page 19 and 20: 5ProgrammableANDArray55...Figure 6S
Page 21 and 22: Chapter 4Getting Started with XPLA
Page 23 and 24: New design filenames must use a .ph
Page 25 and 26: the CPLD utilization and pinout. Th
Page 27 and 28: more information. The simulator is
Page 29 and 30: defined without returning to the Ch
Page 31 and 32: Using the ProgrammerIf a programmer
Page 33: Reserved WordsThe following keyword
Page 37 and 38: Header SectionThe header section of
Page 39 and 40: The header of all PHDL files must s
Page 41 and 42: Module macrotstTitle 'Using macro t
Page 43 and 44: dirloadcount_enabclkpin;pin;pin;pin
Page 45 and 46: "Declare the outputscount_out = [p1
Page 47 and 48: is illegal because buried1 cannot b
Page 49 and 50: "Create a variable for counter outp
Page 51 and 52: MODULE adderTITLE ‘Two four bit a
Page 53 and 54: n1 = q3.q & q2.q;count.ar = rst # n
Page 55 and 56: dir pin;c15..c0pin istype 'reg';"De
Page 57 and 58: in them directing the state diagram
Page 59 and 60: 5055606570758085state s2:when (BRAK
Page 61 and 62: [input state 3] :> [output state 3]
Page 63 and 64: if (TL ) then s3else if (TR) then s
Page 65 and 66: The simulator utilizes five logic l
Page 67 and 68: Figure 33Description of Simulator m
Page 69 and 70: This command allows the operator to
Page 71 and 72: Figure 37Del SignalThis command wil
Page 73 and 74: Add BusThis command will allow the
Page 75 and 76: Figure 43Set ValueThis command allo
Page 77 and 78: Figure 45Figure 4677
Page 79 and 80: Figure 4879
Page 81 and 82: Figure 50Transition CheckThis comma
Page 83 and 84: Figure 52To measure the difference
Page 85 and 86:
• Events [+, -]• Create [Bus, C
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Figure 61Press the Create Bus butto
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Figure 68• Practice Design Simula
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Figure 74The Demo design comes with
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Figure 76Now click on the run butto
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Statements that handle signals, dat
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DescriptionFormatPT Print Title PT
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Chapter 7 Controlling the Fitting P
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wide logic functions using 1 or up
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MODULE count_16TITLE '16-bit Loadab
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Figure 88As one can see from Figure
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that may be summed for any macrocel
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Chapter 8PHDL Language ReferenceThe
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a,b,c,doutpin;pin istype 'com,inver
Page 113 and 114:
when (in1 == 1) & (in2 == 1) then o
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equationsDescriptionThe reserved wo
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state [1,1]: goto [0,0];endif-then-
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Multiple if-then-else structureModu
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endistypeDescriptionThe istype stat
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macroDescriptionThe reserved word m
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signal_namenode istype ‘attribute
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XPLA property 'dut on';inoutpin;pin
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State indicates the state that is b
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state [0,1]: out = 1;if (in1 == 1)
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Module whenthenTitle 'Example of si
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out1.c = clk;out2.c = clk;when (in1
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out.c = clk;s1.c = clk;state_diagra
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Figure 92 shows the simulation mode
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* Simple SCL file (any comment is O
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Data Fields1. A data field consists
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3-State (pull-up or pull-down) resi
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This process is repeated until all
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FFinishFormatFThe Finish command te
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IFVCondition Check on a VariableFor
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Example:||SU TIME = 10000LIST UNDEF
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This command is used to reinitializ
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B set to 1C set to 0D set to 1* Now
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SU TIME = *+500Assuming an actual t
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Appendix BDevice Pin Out Configurat
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PZ3064/PZ5064 44 Pin PLCCPin Name N
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PZ3064/PZ5064 68 Pin PLCCPin Name N
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PZ3064/PZ5064 100 Pin PQFPPIN NAME
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
8-Bit Shift RegisterModule _8bshift
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8-Bit Adder - High LevelMODULE adde
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4-Bit Adder with Carry in and Carry
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Bidirectional I/O’sMODULE bidirec
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16-Bit Counter - Low Levelmodule cn
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}}else{}else when (dir == 1) then{c
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16-Bit Gray Code Countermodule gcnt
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& !q5 & !q4 & !q3 & !q2 & !q1 & !q0
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& q5 & !q4 & !q3 & !q2 & !q1 & !q0
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4-Bit Gray Code Countermodule gray4
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Timer/Countermodule p2" Timer/Count
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16-Bit Loadable Binary Counter - 2
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O9.T = CE & !LOAD & O8.Q & O7.Q & O
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& Q7.Q & Q6.Q & Q5.Q & Q4.Q & Q3.Q
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Serial CRC Generator using a 16-Bit
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8-Bit Loadable Data RegisterMODULE
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"dst24 = ^h05; unused state"dst25 =
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MPRSTn)MPRSTn)MPRSTn)MPRSTn)MPRSTn)
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# ((dst == dst21) & !DRAMCSn & MPRD
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MODULE m16_8High Level Implementati
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Datapath Circuit - Two repsmodule p
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Small State Machine - 8 inputs, 8 r
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state START1:if (inp1 == ^h3C) then
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module p5Arithmetic Circuit: 4 x 4
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1-Bit Accumulatormodule p6" 1--bit
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# D9 & Q8.Q);B25 = (Q11.Q & D10# D1
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A7_1.D = AS & A15 & A14 & A13 & !A1
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DRAM Refresh CounterModule refreshT
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state rfust5:state rfust6:state rfu
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Thunderbird Tailight Control Circui
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Denver International Air Traffic Co
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Appendix DError MessagesThis append
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2600 Control signals has pterms. C
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2345 File line : unknown token .C
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5030 Entries in truth table do not
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5175 Line : Constant has been decl
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3248: Pin feedback for signal is i
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Logical Errors3210: Design exceeds
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Appendix ZAbout this manualThis man
Page 251:
company. It was rumored that Reno l
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