Test 74f524.cir *-------------------------------------------------------------74F524----------- * 8 Bit Register Comparator (Open Collector and Tri-State) * Philips FAST Logic Databook, 1992, pages 506 to 513 * jat 7/11/96 .SUBCKT 74F524 S0 S1 SEBAR C/SI I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 + CP M C/SO EQ GT LT + OPTIONAL: DPWR=$G_DPWR DGND=$G_DGND + PARAMS: MNTYMXDLY=0 IO_LEVEL=0 U1 LOGICEXP(22,13) DPWR DGND + S0 S1 SEBAR C/SI CP M I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 + Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 + C/SOO EQO GTO LTO ENAB D0 D1 D2 D3 D4 D5 D6 D7 + D0_GATE IO_F MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL} + LOGIC: + ENAB = {S1 & ~S0} + LOAD = {S0 & S1} + SHIFT = {~S1 & S0} + D0 = {(Q0 & ~S0) | (I/O0 & LOAD) | (SHIFT & Q1)} + D1 = {(Q1 & ~S0) | (I/O1 & LOAD) | (SHIFT & Q2)} + D2 = {(Q2 & ~S0) | (I/O2 & LOAD) | (SHIFT & Q3)} + D3 = {(Q3 & ~S0) | (I/O3 & LOAD) | (SHIFT & Q4)} + D4 = {(Q4 & ~S0) | (I/O4 & LOAD) | (SHIFT & Q5)} + D5 = {(Q5 & ~S0) | (I/O5 & LOAD) | (SHIFT & Q6)} + D6 = {(Q6 & ~S0) | (I/O6 & LOAD) | (SHIFT & Q7)} + D7 = {(Q7 & ~S0) | (I/O7 & LOAD) | (SHIFT & C/SI)} + NOR0 = {~(~I/O0 | Q0)} + XOR0 = {Q0 ^ ~I/O0} + AND0 = {Q0 & ~I/O0} + NOR1 = {~(~I/O1 | Q1)} + XOR1 = {Q1 ^ ~I/O1} + AND1 = {Q1 & ~I/O1} + NOR2 = {~(~I/O2 | Q2)} + XOR2 = {Q2 ^ ~I/O2} + AND2 = {Q2 & ~I/O2} + NOR3 = {~(~I/O3 | Q3)} + XOR3 = {Q3 ^ ~I/O3} + AND3 = {Q3 & ~I/O3} + NOR4 = {~(~I/O4 | Q4)} + XOR4 = {Q4 ^ ~I/O4} + AND4 = {Q4 & ~I/O4} + NOR5 = {~(~I/O5 | Q5)} + XOR5 = {Q5 ^ ~I/O5} + AND5 = {Q5 & ~I/O5} + NOR6 = {~(~I/O6 | Q6)} + XOR6 = {Q6 ^ ~I/O6} + AND6 = {Q6 & ~I/O6} + NOR7 = {~((~(~I/O7 ^ ~M)) | (~(Q7 ^ ~M)))} + XOR7 = {(~(~I/O7 ^ ~M)) ^ (~(Q7 ^ ~M))} + AND7 = {(~(~I/O7 ^ ~M)) & (~(Q7 ^ ~M))} + ORA = {(NOR0 & XOR1 & XOR2 & XOR3) | (NOR1 & XOR2 & XOR3) | (XOR3 & NOR2) | NOR3} + ORB = {(AND0 & XOR1 & XOR2 & XOR3) | (AND1 & XOR2 & XOR3) | (XOR3 & AND2) | AND3} + ORC = {(AND4 & XOR5 & XOR6 & XOR7) | (AND5 & XOR6 & XOR7) | (XOR7 & AND6) | AND7} + ORD = {(NOR4 & XOR5 & XOR6 & XOR7) | (NOR5 & XOR6 & XOR7) | (XOR7 & NOR6) | NOR7} + NANDLT = {~(XOR4 & XOR7 & XOR5 & XOR6)} + ANDDOWN = {C/SI & ~SEBAR} + LTO = {(~NANDLT & ORA) | ORD | ~ANDDOWN} + GTO = {ORC | ~ANDDOWN | (~NANDLT & ORB)} + EQO = {SEBAR | (~NANDLT & (XOR1 & XOR0 & XOR2 & XOR3))} + C/SOO = {(SHIFT & Q0) | (~SHIFT & (C/SI & ~NANDLT & XOR0 & XOR1 & XOR2 & XOR3))} U2 DFF(8) DPWR DGND + $D_HI $D_HI CP + D0 D1 D2 D3 D4 D5 D6 D7 + Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 + $D_NC $D_NC $D_NC $D_NC $D_NC $D_NC $D_NC $D_NC + D0_EFF IO_F MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL} U3 PINDLY(9,1,12) DPWR DGND + Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 C/SOO + ENAB + I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 CP C/SI S0 S1 + I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 C/SO + IO_F MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL} + BOOLEAN: + DATA = {CHANGED(I/O0,0) | CHANGED(I/O1,0) | CHANGED(I/O2,0) | CHANGED(I/O3,0) | + CHANGED(I/O4,0) | CHANGED(I/O5,0) | CHANGED(I/O6,0) | CHANGED(I/O7,0)} + EDGE = {CHANGED_LH(CP,0)} + CSI = {CHANGED(C/SI,0)} + SS = {CHANGED(S0,0) | CHANGED(S1,0)} + TRISTATE: + ENABLE HI = ENAB + I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 = { + CASE( + TRN_ZH, DELAY(4.5NS,7NS,13NS), + TRN_ZL, DELAY(5.5NS,9NS,15NS), + TRN_HZ, DELAY(3NS,5NS,12NS), + TRN_LZ, DELAY(4.5NS,8NS,12.5NS), + DELAY(6.5NS,10NS,16NS))} + PINDLY: + C/SO = { + CASE( + SS & TRN_LH, DELAY(6.5NS,8NS,14.5NS), + SS & TRN_HL, DELAY(5.5NS,10NS,17NS), + EDGE & (S1 == '1 & S0 == '1) & TRN_LH, DELAY(10NS,16NS,20NS), + EDGE & (S1 == '0 & S0 == '1) & TRN_LH, DELAY(5NS,10NS,13NS), + EDGE & (S1 == '0 & S0 == '1) & TRN_HL, DELAY(4.5NS,9NS,11.5NS), + DATA & TRN_LH, DELAY(7NS,13NS,16NS), + DATA & TRN_HL, DELAY(6.5NS,9NS,14NS), + CSI & TRN_LH, DELAY(4NS,7NS,11NS), + CSI & TRN_HL, DELAY(4NS,7NS,11NS), + DELAY(11NS,17NS,21NS))} U4 PINDLY(3,0,12) DPWR DGND + EQO LTO GTO + I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 CP C/SI SEBAR M + EQ LT GT + IO_F_OC MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL} + BOOLEAN: + DATA = {CHANGED(I/O0,0) | CHANGED(I/O1,0) | CHANGED(I/O2,0) | CHANGED(I/O3,0) | + CHANGED(I/O4,0) | CHANGED(I/O5,0) | CHANGED(I/O6,0) | CHANGED(I/O7,0)} + EDGE = {CHANGED_LH(CP,0)} + CSI = {CHANGED(C/SI,0)} + SE = {CHANGED(SEBAR,0)} + MM = {CHANGED(M,0)} + PINDLY: + EQ = { + CASE( + SE & TRN_LH, DELAY(3.5NS,7NS,10.5NS), + SE & TRN_HL, DELAY(2.5NS,4.5NS,8NS), + EDGE & TRN_LH, DELAY(11NS,17NS,22NS), + EDGE & TRN_HL, DELAY(4NS,8NS,14NS), + DATA & TRN_LH, DELAY(9NS,11.5NS,17NS), + DATA & TRN_HL, DELAY(4.5NS,7.5NS,11NS), + DELAY(12NS,18NS,23NS))} + GT = { + CASE( + SE & TRN_LH, DELAY(6NS,8NS,13NS), + SE & TRN_HL, DELAY(3.5NS,5NS,8NS), + MM & TRN_LH, DELAY(8NS,13NS,18NS), + MM & TRN_HL, DELAY(8NS,10NS,15.5NS), + EDGE & TRN_LH, DELAY(11NS,16NS,20NS), + EDGE & TRN_HL, DELAY(10NS,16.5NS,21NS), + DATA & TRN_LH, DELAY(8.5NS,11NS,17NS), + DATA & TRN_HL, DELAY(6.5NS,9.5NS,15.5NS), + CSI & TRN_LH, DELAY(8NS,10.5NS,16NS), + CSI & TRN_HL, DELAY(3NS,4.5NS,8.5NS), + DELAY(12NS,17NS,21NS))} + LT = { + CASE( + SE & TRN_LH, DELAY(5NS,8NS,12NS), + SE & TRN_HL, DELAY(3.5NS,5.5NS,8NS), + MM & TRN_LH, DELAY(10NS,15NS,20NS), + MM & TRN_HL, DELAY(6NS,8NS,12NS), + EDGE & TRN_LH, DELAY(11NS,16NS,23NS), + EDGE & TRN_HL, DELAY(8NS,14NS,18NS), + DATA & TRN_LH, DELAY(8NS,11NS,17NS), + DATA & TRN_HL, DELAY(6NS,10.5NS,14NS), + CSI & TRN_LH, DELAY(8NS,10.5NS,17NS), + CSI & TRN_HL, DELAY(3NS,6NS,8.5NS), + DELAY(12NS,17NS,24NS))} U5 CONSTRAINT(12) DPWR DGND + I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 CP S0 S1 C/SI + IO_F IO_LEVEL={IO_LEVEL} + FREQ: + NODE = CP + MAXFREQ = 65MEG + WIDTH: + NODE = CP + MIN_HI = 5NS + MIN_LO = 10NS + SETUP_HOLD: + CLOCK LH = CP + DATA(8) = I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 + SETUPTIME = 6NS + SETUP_HOLD: + CLOCK LH = CP + DATA(2) = S0 S1 + SETUPTIME_HI = 13.5NS + SETUPTIME_LO = 10NS + SETUP_HOLD: + CLOCK LH = CP + DATA(1) = C/SI + SETUPTIME = 7NS .ENDS 74F524 * .SUBCKT 74F524 S0 S1 SEBAR C/SI I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 * + CP M C/SO EQ GT LT X86 i_s0 i_s1 i_sebar csi io0 io1 io2 io3 io4 io5 io6 io7 cp i_m o_cso o_eq o_gt o_lt 74f524 a1 [cp] in_vec1 .model in_vec1 d_source(input_file="74f524-cp.stim") a2 [io7 io6 io5 io4 io3 io2 io1 io0] in_vec2 .model in_vec2 d_source(input_file="74f524-io.stim") a3 [i_sebar i_m] in_vec3 .model in_vec3 d_source(input_file="74f524-sem.stim") a4 [i_s0 i_s1] in_vec4 .model in_vec4 d_source(input_file="74f524-s0s1.stim") a5 [csi] in_vec5 .model in_vec5 d_source(input_file="74f524-csi.stim") .tran 1ns 3us .control run listing *edisplay eprint io0 io1 io2 io3 io4 io5 io6 io7 eprint cp i_s0 i_s1 csi i_sebar i_m eprint o_cso o_eq o_gt o_lt * save data to input directory cd $inputdir eprvcd io0 io1 io2 io3 io4 io5 io6 io7 cp i_s0 i_s1 csi i_sebar i_m o_cso o_eq o_gt o_lt > 74f524.vcd * plotting the vcd file with GTKWave if $oscompiled = 1 | $oscompiled = 8 ; MS Windows shell start gtkwave 74f524.vcd --script nggtk.tcl else shell gtkwave 74f524.vcd --script nggtk.tcl & end quit .endc .end