Add more vectors to behavioral 283 circuit. Add tristate buffer circuit which shows glitches until inertial delays are implemented.
This commit is contained in:
Brian Taylor
Holger Vogt
parent
a922f797d3
commit
b0e9874de8
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@ -0,0 +1,91 @@
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Behavioral CMOS 283 : 4-bit adder with behav-283-1.stim
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*-------------------------------------------------------------74AC283-----
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*
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* The 74AC283 4-Bit Binary Full Adder with Fast Carry
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* (4 Page Fax) Harris Advanced CMOS Logic, File Number 1912
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* and Philips Semiconductors High-speed CMOS Logic Data Handbook
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* for the logic diagram, 1994, page 564
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* jat 7/26/95
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.SUBCKT 74AC283
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+ A0 A1 A2 A3 B0 B1 B2 B3 CIN COUT S0 S1 S2 S3
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+ OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND
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+ PARAMS: MNTYMXDLY=0 IO_LEVEL=0
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U1 LOGICEXP(9,5) DPWR DGND
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+ A0 A1 A2 A3 B0 B1 B2 B3 CIN
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+ S_0 S_1 S_2 S_3 C_OUT
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+ D0_GATE IO_AC
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+ MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
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+ LOGIC:
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+ S_0 = {A0 ^ B0 ^ CIN}
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+ NOR1 = {(A0 | B0) & (CIN | (A0 & B0))}
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+ S_1 = {NOR1 ^ A1 ^ B1}
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+ NOR2 = {~((~(A1 | B1)) | ((~(A0 | B0)) & (~(A1 & B1))) |
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+ ((~(A1 & B1)) & (~(A0 & B0)) & (~CIN)))}
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+ S_2 = {NOR2 ^ A2 ^ B2}
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+ AND31 = {(~(A2 & B2)) & (~(A1 & B1)) & (~(A0 & B0)) & (~CIN)}
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+ AND32 = {(~(A0 | B0)) & (~(A2 & B2)) & (~(A1 & B1))}
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+ AND33 = {(~(A1 | B1)) & (~(A2 & B2))}
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+ NOR3 = {~(AND31 | AND32 | AND33 | (~(A2 | B2)))}
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+ S_3 = {NOR3 ^ A3 ^ B3}
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+ ANDC1 = {(~(A3 & B3)) & (~(A2 & B2)) & (~(A1 & B1)) &
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+ (~(A0 & B0)) & (~CIN)}
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+ ANDC2 = {(~(A0 | B0)) & (~(A3 & B3)) & (~(A2 & B2)) & (~(A1 & B1))}
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+ ANDC3 = {(~(A1 | B1)) & (~(A3 & B3)) & (~(A2 & B2))}
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+ ANDC4 = {(~(A2 | B2)) & (~(A3 & B3))}
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+ C_OUT = {~(ANDC1 | ANDC2 | ANDC3 | ANDC4 | (~(A3 | B3)))}
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U2 PINDLY(5,0,9) DPWR DGND
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+ S_0 S_1 S_2 S_3 C_OUT
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+ A0 A1 A2 A3 B0 B1 B2 B3 CIN
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+ S0 S1 S2 S3 COUT
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+ IO_AC
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+ MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
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+ BOOLEAN:
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+ CARRYIN = {CHANGED(CIN,0)}
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+ NUMBER = {CHANGED(A0,0) | CHANGED(A1,0) | CHANGED(A2,0) |
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+ CHANGED(A3,0) | CHANGED(B0,0) | CHANGED(B1,0) |
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+ CHANGED(B2,0) | CHANGED(B3,0)}
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+ PINDLY:
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+ S0 S1 S2 S3 = {
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+ CASE(
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+ NUMBER & (TRN_LH | TRN_HL), DELAY(4.7NS,-1,16.5NS),
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+ CARRYIN & (TRN_LH | TRN_HL), DELAY(4.5NS,-1,16NS),
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+ DELAY(5.7NS,-1,17.5NS))}
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+ COUT = {
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+ CASE(
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+ NUMBER & (TRN_LH | TRN_HL), DELAY(4.5NS,-1,16NS),
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+ CARRYIN & (TRN_LH | TRN_HL), DELAY(4.5NS,-1,16NS),
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+ DELAY(5.7NS,-1,17.5NS))}
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.ENDS 74AC283
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X1 a0 a1 a2 a3 b0 b1 b2 b3 cin cout s0 s1 s2 s3 74ac283
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a_1 [ a3 a2 a1 a0 b3 b2 b1 b0 cin ] input_vec1
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.model input_vec1 d_source(input_file = "behav-283-1.stim")
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.tran 0.01ns 4us
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.control
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run
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listing
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edisplay
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eprint a3 a2 a1 a0 b3 b2 b1 b0 cin
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eprint s3 s2 s1 s0 cout
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* save data to input directory
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cd $inputdir
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eprvcd a3 a2 a1 a0 b3 b2 b1 b0 cin s3 s2 s1 s0 cout > behav-283-1.vcd
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* plotting the vcd file with GTKWave
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if $oscompiled = 1 | $oscompiled = 8 ; MS Windows
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shell start gtkwave behav-283-1.vcd --script nggtk.tcl
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else
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if $oscompiled = 7 ; macOS, manual tweaking required (mark, insert, Zoom Fit)
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shell open -a gtkwave behav-283-1.vcd
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else ; Linux and others
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shell gtkwave behav-283-1.vcd --script nggtk.tcl &
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end
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end
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quit
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.endc
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.end
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@ -0,0 +1,39 @@
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* T a a a a b b b b c
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* i 0 1 2 3 0 1 2 3 i
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* m n
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* e
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0ns 0s 0s 0s 0s 0s 0s 0s 0s 0s
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100ns 0s 0s 0s 1s 0s 0s 0s 1s 0s
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200ns 0s 0s 1s 0s 0s 0s 1s 0s 0s
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300ns 0s 0s 1s 1s 0s 0s 1s 1s 0s
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400ns 0s 1s 0s 0s 0s 1s 0s 0s 0s
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500ns 0s 1s 0s 1s 0s 1s 0s 1s 0s
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600ns 0s 1s 1s 0s 0s 1s 1s 0s 0s
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700ns 0s 1s 1s 1s 0s 1s 1s 1s 0s
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800ns 1s 0s 0s 0s 1s 0s 0s 0s 0s
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900ns 1s 0s 0s 1s 1s 0s 0s 1s 0s
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1.0us 1s 0s 1s 0s 1s 0s 1s 0s 0s
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1.1us 1s 0s 1s 1s 1s 0s 1s 1s 0s
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1.2us 1s 1s 0s 0s 1s 1s 0s 0s 0s
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1.3us 1s 1s 0s 1s 1s 1s 0s 1s 0s
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1.4us 1s 1s 1s 0s 1s 1s 1s 0s 0s
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1.5us 1s 1s 1s 1s 1s 1s 1s 1s 0s
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1.6us 0s 0s 0s 0s 0s 0s 0s 0s 0s
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1.7us 0s 0s 0s 0s 0s 0s 0s 0s 1s
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1.8us 0s 0s 0s 1s 0s 0s 0s 1s 1s
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1.9us 0s 0s 1s 0s 0s 0s 1s 0s 1s
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2.0us 0s 0s 1s 1s 0s 0s 1s 1s 1s
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2.1us 0s 1s 0s 0s 0s 1s 0s 0s 1s
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2.2us 0s 1s 0s 1s 0s 1s 0s 1s 1s
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2.3us 0s 1s 1s 0s 0s 1s 1s 0s 1s
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2.4us 0s 1s 1s 1s 0s 1s 1s 1s 1s
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2.5us 1s 0s 0s 0s 1s 0s 0s 0s 1s
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2.6us 1s 0s 0s 1s 1s 0s 0s 1s 1s
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2.7us 1s 0s 1s 0s 1s 0s 1s 0s 1s
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2.8us 1s 0s 1s 1s 1s 0s 1s 1s 1s
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2.9us 1s 1s 0s 0s 1s 1s 0s 0s 1s
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3.0us 1s 1s 0s 1s 1s 1s 0s 1s 1s
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3.1us 1s 1s 1s 0s 1s 1s 1s 0s 1s
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3.2us 1s 1s 1s 1s 1s 1s 1s 1s 1s
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3.3us 0s 0s 0s 0s 0s 0s 0s 0s 1s
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@ -0,0 +1,82 @@
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Test behav-tristate.cir
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* -----------------------------------------------------------74HCT125------
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*** This is not quad
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* Quad Buffer/Line Driver; Tri-State
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* Philips High Speed CMOS Logic Family, 1994, pages 243 to 247
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* jat 9/4/96
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.SUBCKT 74HCT125 1A 1Y 1OEBAR
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+ OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND
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+ PARAMS: MNTYMXDLY=0 IO_LEVEL=0
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U1 PINDLY(1,1,0) DPWR DGND
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+ 1A
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+ 1OEBAR
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+ 1Y
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+ IO_HCT MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
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+ TRISTATE:
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+ ENABLE LO = 1OEBAR
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+ 1Y = {
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+ CASE(
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+ TRN_Z$,DELAY(-1,15NS,28NS),
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+ TRN_$Z, DELAY(-1,15NS,25NS),
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+ (TRN_LH | TRN_HL), DELAY(-1,15NS,25NS),
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+ DELAY(-1,16NS,29NS))}
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.ENDS 74HCT125
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* -----------------------------------------------------------74HC126A------
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*** This is not quad
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* Quad Tri-State Noninverting Buffers
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* Motorola High-Speed CMOS Data, 1993, pages 5-106 to 5-109
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* jat 9/4/96
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.SUBCKT 74HC126A A1 Y1 OE1
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+ OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND
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+ PARAMS: MNTYMXDLY=0 IO_LEVEL=0
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U1 PINDLY(1,1,0) DPWR DGND
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+ A1
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+ OE1
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+ Y1
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+ IO_HC MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
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+ TRISTATE:
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+ ENABLE HI = OE1
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+ Y1 = {
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+ CASE(
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+ TRN_Z$,DELAY(-1,-1,18NS),
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+ TRN_$Z, DELAY(-1,-1,24NS),
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+ (TRN_LH | TRN_HL), DELAY(-1,-1,18NS),
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+ DELAY(-1,-1,25NS))}
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.ENDS 74HC126A
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* .SUBCKT 74HCT125 1A 1Y 1OEBAR
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x1 1a 1y oebar 74hct125
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* .SUBCKT 74HC126A A1 Y1 OE1
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x2 a1 y1 oe 74hc126a
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a_1 [ 1a oebar a1 oe ] input_vec1
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.model input_vec1 d_source(input_file = "behav-tristate-pulse.stim")
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.tran 0.01ns 1us
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.control
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run
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listing
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edisplay
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eprint 1a oebar 1y a1 oe y1
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* save data to input directory
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cd $inputdir
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eprvcd 1a 1y oebar a1 y1 oe > behav-tristate-pulse.vcd
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* plotting the vcd file with GTKWave
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if $oscompiled = 1 | $oscompiled = 8 ; MS Windows
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shell start gtkwave behav-tristate-pulse.vcd --script nggtk.tcl
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else
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if $oscompiled = 7 ; macOS, manual tweaking required (mark, insert, Zoom Fit)
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shell open -a gtkwave behav-tristate-pulse.vcd
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else ; Linux and others
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shell gtkwave behav-tristate-pulse.vcd --script nggtk.tcl &
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end
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end
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quit
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.endc
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.end
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@ -0,0 +1,30 @@
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* T 1 o a o
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* i a e 1 e
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* m b
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* e a
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* r
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0ns 1s 1s 1s 0s
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100ns 1s 0s 1s 1s
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152ns 0s 0s 0s 1s
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154ns 1s 0s 1s 1s
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156ns 0s 0s 0s 1s
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158ns 1s 0s 1s 1s
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160ns 0s 0s 0s 1s
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200ns 0s 0s 0s 1s
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300ns 0s 1s 0s 0s
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400ns 1s 1s 1s 0s
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500ns 1s 0s 1s 1s
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600ns 0s 0s 0s 1s
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650ns 1s 0s 1s 1s
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652ns 0s 0s 0s 1s
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654ns 1s 0s 1s 1s
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656ns 0s 0s 0s 1s
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658ns 1s 0s 1s 1s
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660ns 0s 0s 0s 1s
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700ns 1s 0s 1s 1s
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750ns 0s 0s 0s 1s
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752ns 1s 0s 1s 1s
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754ns 0s 0s 0s 1s
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758ns 1s 0s 1s 1s
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850ns 0s 0s 0s 1s
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@ -553,13 +553,15 @@ static TLINE tab_find(PTABLE pt, char *str, BOOL start_of_line)
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return NULL;
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return NULL;
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}
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}
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#ifdef TABLE_PRINT
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//#define PTABLE_PRINT
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static void table_print(TLINE first)
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#ifdef PTABLE_PRINT
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static void ptable_print(PTABLE pt)
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{
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{
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TLINE t;
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TLINE t;
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if (!first)
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if (!pt)
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return;
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return;
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t = first;
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t = pt->first;
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printf("num_entries %u\n", pt->num_entries);
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while (t) {
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while (t) {
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printf("%s\n", t->line);
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printf("%s\n", t->line);
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t = t->next;
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t = t->next;
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