HierarchyFilesModulesSignalsTasksFunctionsHelp

/***************************************************************************
****************************************************************************
***
***  Program File:  @(#)async_fifo_afxm.v
***
***
****************************************************************************
****************************************************************************/
//-----------------------------------------------------------------
//  (c) copyrights 1993. All rights reserved
//      RAVIcad
//
//      Company confidential and Proprietary information.
//      This information may not be disclosed to unauthorized
//      individual.
//-----------------------------------------------------------------
//  ***************************
//   SCCS file :"async_fifo.v
//   @(#)async_fifo_afxm.v	1.12 1/19/96
//   Mod Date  :"95/11/10"
//   Mod Time  :"11:39:36"
// ***************************
// -------------------------------------------------------------------------
//  This module implements the 4 deep async fifo used for staging data between
//  the two buses.
//
//
// ------------------------------------------------------------------------

module async_fifo_afxm
`ifdef VCS  // VCS Release 5.0.1A
`protected
V>_)6F5GH)NfQ(aR3X-8&O)I@I(G?f
ICa]DTG_B#)8E@8TOB0)P0CB2a?TDPF:C#&Rb-GW8TB][4Ye2W0XEJZ>d^?._I(J
&M_NJW9WD.[XgFHa_TJ=A_,KIWg6,:&/=NT./BTQd-OMeFC)1CO+YZI]ZgV.,G9/
@219T(eBJKNPRJG[c7AX+TVUG?e1ae4&aL2_9c@UJ9^^Ba726S<9+2Y\(Wg]5Edg
DMI-g7e?BR0)/?7B/\VbOfc#a1FF#TFEa4a/@2g/U[d]^[<.)@&^R?XH50K=TVDc
R#B6)79gG^b_.TXJaD^>gd3De7N26A98U7_ZgN__e5Z;&M=.O=FN<\:J/HR5Og+4
L-BPN/4WTR)@:\DAaZ\E<2C]>4GR#3_^]g;@,^gYA9&W-RRS+W.I)YG6?G)Z8A1?
?YJeA\PXbD.Q,,Hg90&a8[=DAP\QA?(gUA;SG8=g0;aCYf7]A_^KJ+[A#
fQb:5aO=UZ/X=F+S.+]&LI8T&e/^&5DZ;MP#U4Y#F9MN9]b<)]^+C/T4R?>fZMQa
@&^(7-J)86Yg(V;2SDggD:;;)P=e@N#?T/Y4a:(:];g+J)\ETALJ2/0#08IW_0\_
EB#Zdef5\XT/cFN)N2BO<@\fJ\?0KOAGa??&:1+1W9D.f,//-=I8Y3_P-P49UL@2
4^\VF(\d78S?8dS=YSAB=5@_PN&ZFI.f4^7?Dg9Z\KYR5>bBcSI5
>4L^2)3V-W]B-6ZFe^TYVEL^0:J/6RWPQ?NBS1SB:3RQS]1+SHQSO+?L.PF[-Q7A1A:,NLQ_cO)NV94f90H[cc89R.:J2N-,d5>.5T4+TgO1/Bg:Z]N6b&S9X(B#1I_5LJ@SZJ0K?EfAfN)dN0T)1?C6
\(I]J-CgaH5,Z,/DbUP^UB/0\aE14&X5^)QXJ?XV79PWQ;\?@2]UDYX55B&RYFb#
,2&ZQ8?&ATOMT_/N:X5)Ce.Y:Ef^&G(@S#SFG)5SbAb>_HAM^0XW21_S2U5OTHR8_QMeV=9Ud-.PT:fdX^DE_Q@8M>-
0+dO.7-:JSJ_c,6K1c914XNM,VAR4^@_,[=>,d2fRHB^GLN)\0WP,8b8IAcSG=N^
#:D.Y_HK08IQ_Ib/QAF(HTL/G_GEaI@:P^MMIOIMWWgW+-0C_f@eX,;e[>&W,7V/
Od=R[@XYe#7;4\FXW8^FRZ8MAWPeZfW/,gNHY:(Y^c0ceB-^L4X\.;]_=7YTH#=0
RG)OSd@B:4<>SS96L9UAW:4??6LPZGf;7_&GD(G7,f_dHK,NTKSF??GY+-O@&,5F
YZ&V62f_#D,BYO]JagZ/J7OWDO3b]NU@,-\(3M1\@I-M<.,TaK
W7M6@+a@4OFa]WR6_VaG
bW,-9ZDHbV(O?0ED_DE2DV2AA7:A_-<.9T+BMbXdb:5\&UEGVS.a@5G(94]R[<+[
ZXT^b,9c#V;9)T+./=R8e=N&[a772c/03cC(KD.GS,3]VTOZ]E@68W@50/=O=UGe
G977WO-BJI?C]+C7cI;AdU0P_b,GP5ZSNa8H5/@0R-\VC<8>(5JV#=&e(<.KaO))
Ge.M9+]:)YX:/YL7DQPC8&DB=YRd,/gcB9XJ(TaeI&5cI,ED>1+/fA,,F-ES.A:a
[P_RMP9UMc40^_7WO=f/8Z0)2EMB,6J]QK>;?<+ED/W5R_-1=e.)L/N4W\A1:(DF
;J&_VD)1bP4JUQ1<:2I
A5Ea^U2c?CK#1=S8I)3c-O_AV=0)3c0>AR[KPB#3-\^_58PeG6U.BFU@O_1EK\b>
8fO(aL-8-6:M539dD5>f7c##C4U.aX#MQG.830cBf0^HT4&OKe[EWW9-)I/BZ-(A
?\>:@43IMK]Q;FWa?6N7/8,g,2gBU[E/M=S],_HRD>#TC][YSb>0H1=XQ@-dS87=
bd_S,:DC+,gFA#SZDE5g3dVX,a<9WYf/N>6a./H;b\K^6EEDRWe^C6Z\^F640E&ML,;?,CH50
4CE(6Of:b6[TL/>#&I,UKgefFX_=X#@+e\&L?b(8?SHQb(/M8=EYS4CEX2#
&I9T]Jda]EfWBZfE=8[dg:RI]+GE]:c&Y2c,)G]f=f90.#4aBIO#3KA)8HdSK3)c[-ZS&KR8+-A9J0HUPWZV[C3QeAN#eD:N?XY\[D
aX@g/9=d7Oe3M9Q=a5>?TAGTV9>f@@X0KL.QZg(&N0]]]S<)85,_1(2S6bNS<[aJ,f6>c#FHF^_/_7>;,gS(IcW2
R?DN_>JM+:a_L@NH^FaHWLVcH)EA]6?bIf(YcGQ+NE/e8_:PYP[16(+CUfWNOeO9
Ub@[/).eVI2Z[^)=IS2HPdA9#TbO6>-2HU1H:eOJ79g)>L:K#<9O-<;5&#.JcD?I
b4B:2WGWAYM5aOFb_J7agJYD;JW/KMD;V,;+9&5^#LeJ@cVB;Q,a[NE4/ab?ACT4
Ifa42QY,2HBHcD4c:1-5.52dK9cQ2J,b.N\b4ZgGe8[BOe4LT]a7BWP>Y[@0b[GAfT&Q3-KMN4&SfX]DG,KdK]RV[K>O.FU.g:JW
3f5)&@F7.Q@BKAI]\IbDIFFX3RBJ:2:6^.QQ9Bb-#Q<=H9<6M6(d.?X42GI&,\B(
5]F:)dC+TQD4KC;)=?DSVWS5.1a][@f@C7MN4SgbDH9aB&2.EB2c([X^:9WX5Y7J
+R?./ZgIa53](9(PN
Bd[[MCQWL>#LLAX[c>IWN?L]FD1E+F0Y1bW(MD?O4J4JD:=]:0ZBaeYb@QNU0V8J
K_:^LI0FYL++Q;M:?.VY89E)(<\#e27ab5,BW-.@7^4@B=9\JAUR1[Y+8P,?Qd[)
-a^_?OEe+7LgCTZAYZDXE[1^CP.^:#-I[FEK[AO^:Qg/e8JG]1g=X_B&4)I\D0(^FGG+SS^EF@)@@(21g<:21UMe@fRT5Q01Pa)^S([aa-gFf2A)a))XgDAY],QUY;
R\RVI@US:]eHMK:;U6e/:L-^_^&;L[6T_A0eBH75/WW6
Bd+&T(6P+XX\BU6,E0,Vg^5b4K<6RS?Rca_7S#D)7BeP)fM0b4IF55O[SS/+V,G;
_]J-V&/NQ8]0_1ZRR26JA5c&:93/3X,F/e4SKWD9A^8X>?A)>?X:MPCY8OS6:BWg-JSMSZ/CA(V6AMCL8Z4ZdG[R__M.bX&@[]VY)
=]_[bf9eIOd-9FeM8RCe+I=;<^DVNE(7GbVW^Xa(\e@.(BRHJW13\:3VU6_=gKS5
H\SR\-VF^6P&[X9#-)f9UZa&ab3,
]F^TPC)8>TeSV6Q=[3CdE=?a#JfFL_96JE3cg[8M]Q(47)R);.Dc[S)66M4K@BfB
KQ(\_C>fLEfS^__@\^RX^A=IIP]CNO9&?\]YZ2&NQ@]eX(2d@/T&b=VW+:LOFD#2
U+?,\D-#[b7eMd@X>@2N;CH#]\FXS.,#d)B;@^(dCbX?^PXTEacXOLdbA,S&1L8+
;f#=5,4fKDN\DFQCAZUgVBN2P^TRMK\BdQ:BbG8Y2#33;WN1),0F>C4M9b6?=3Q4
)A-U4YePO9[gM5XFWJe[L9,9N/9C5Z:/.N>e0P/TQB3JgM=KWY#_>XUa-TKE1fDRZ)^F-EWK)=5PJ,2]IAVg>YTAeW7H59cCEDON6\F;5c_C,TVK;)\d#7KO=f518
deI4-:TTF\>L.^+/^M9H3[SQT>g;]T1C7LW-YB]Bd>KM&4/VZIB+b9NEd1/A;C7#N7Pc/FEJ1+\G\(?M
TDb8KeP5_O0W:PV<4]aPPe.2]V1RaO-UQ[/1+>EFWFSeWD0FC3R4>46[2QP#e9VR
))ca/D+cFL&[PccGWV1gO/:CJ1YLO0Cd-8H1&V]DON)P3>H&]Y[CXM>?.a.]SS:5
^.#[Y9B@+NW5.D\-^7B#03\eS#&[,9J>@,,aa,:,8fX\YC?GTVgXgWAG>MEMBVg3
GEV,>dWQ.ZdgY(bcA)TAD4^NTdK=@.B=c:0R:8V:)#ZHXg3eB:TABH]Ng;T-1g\V
e[V42,7C10-9NI]BR9EXEFGg.Ed9GHD>U&WBJ[-T__B==b.Kc=QH_LB84HS]_?4M
9TP+75&-/XdNd>PfSeIUTfgNIP03:?UY3dP1WBC^Q?9OfIbQ8eZO5TO(c^0W1+^Ed9^MCA[/^JCQV:O(7Be,P)]gH(?WM]\?<]@WcDgAg8X-ZHOXGK;9gVA[=4K
5;R3D3:0U-62Rb+ERD-Ye>&8,KD>ZBCUQ=B4/R\(1+aFEA5EVbFM#aL8X+DF/g=W
W]3;HL^dD_7&Q-0?HVX>d#V3<3c3RT-GQB:T]3K_,N,.VeQJ_V1N25(T?\f9F73L+2K^J)DO3:^?-b0-]?>^1XD,.;59R2_>1,\];2NVG.>)-0@g4E0QDK9AN
#Q]bR/_6V@19/cZ61I/24VV@A6QZK3&TY65PJ]4
eKSa(g;X&GWVC?KRH^X<#D+NUFVB+fEEVZ4O\fVb65>_8^fRZ&bM;\a[#KJe/8)B
d(>YEI(7<2[GHW\^_4bU,Qe^L]:]7NJ;#N1-6)=3N./T339(Y-D-Y[7(E^9H-+g:
-FEBX6@W5TEa-28(1]Xefe+ZYgK=DX41J+E/&7[BOgCA7g9dL^B+J3(?3)E
=Q:&-44/;-_H&WTHd0H=9Q(R:+:5NO,W#1H/aZTD+SS3QY_dFMS\>+fKF&DAa,#0J\/7Ba#3a6;6-92IGEHEgY>5^+#_CS3aX=)&aO
S6]V^B5NZ(_;YbT0ZQGgHd:DHXA^BcAL)NeNB38[HF/5])Mb1/]#U,TK_37eAJLW
E7Pd3d>+PN4J6/c=[eHe=0&ZT@J4;fOBE+PUcWP:#BC?(8R#4-B9GBA]U>./,\;X
I>,d3)Bb[5>]6Eg&?\/CZc8+Q;J^0=_HP(;7JO7.A/d]d[\0aG),@XG[:Ic.;E+C
Xb>cg@K7bFYAPXOQH3#b(cefL9#?>.K8_;9MPdLXb.P\R5O&<5067JO0MADJ,FJP
C?L3?4a,_V\\@?LNT-6F]Sb+gRPDSJ31-2_6E;)GM/KCX,+83,F:^5#X3DDgF9)Z
21)YS.EPM(+[Eg;AE/X2:FFL-GR4HLXO#3f]CK&1aWM@8H9XFDYP,3Ha+&^DDZ+5
).@8O_-a.=ZOVd9J)=M@KSeR7K\EfG@2+J#]6
]Q0F^;6VBD+GME+C((@H8BU]Q7SgD^0;+AWIPN_6_Q8X/PWV9OI7)Y0A3E)/Fg\7
?EO+K2IUQB0K]LC<(Sc_C6Y0T@R7&ZUJ(&YHGN-)@^D4FZ@7efSVa//Da@FW2\O)P+3c,H)A\F2XY87A(B[3^aI7.-I[R
+[SOgF6)RURc)<+H(c9bY?I]^M040PHCMR:IE(TW/]G3,A13V3>DW6_X4.Z]N?Ub
8&JJ:^(3[gI>Egd4I2LWY7fNMR,8/cB5OOH9\X<&@A3MN8a)=9M50dXV:a3Z^X,@
RLU0XWI)D48J43a4]D1(GY>AE#D61NVBe_Af=XGL^B9M#CA#M<[@+_1XA^P4^\bW
.(CD&7#?g85V\ZecF=GR4/?KB-&&Hd1<59d/>PcX.H?=C<LH/WOYa9T/JHG8EXgYg/egRb\OK/abdC?UN,,ZT0@>?Bc5ZNE\>20Ye0bAR[F#1/
IOKUUVUX?G^&HgJ=a?M:WTagIU.Pc?VD0V78d#P_YbX(V)MXHV-FNHc56K:4,TE;T(0C8-Y^5OfQYM)G\e
#JR3b^+FSX@=C:F^1QB&;OK+eN#b\eGZ:?&7]LNR>UAQ)D<5,.,JX66AE[AWI]IW
2OeD2/36IO+WdA:P[8;_,;=W.#U13Q?cJY=R+AKUFRHX:I4:^O5
cKY3g&Q;c).TUEObT]c[RN^0CO+&>[D&08W,\^D.HYW]BZQ^e?JV-<00&^O20/L)
?f2.#&YJQ+\FILS4B_a/V;/,;8gCHXf05)g^VWSNa:&6K&6(1Cg9_G4RLBZ\-#>K
SacKR70#@LBcWR]TKA_Q[G&7.)IO[ZXW5.@G,;.c.2BdUa13QQ+8:K
/CH(?FP[a@?\8dG+-8Y8,g=6MfY#0;TdA(]U2^FFS>)-H&URZNSfU:<(3_=#^DAZ
Kc7&1&.cVZg(e8-cabS./QOKecPJN;H>X^2W:/R=OS0;@^E87S67(_(e3,1CgGP-
;0V>FT:)>)UCBT&2)/CMTC4?SSO4RfKJN[4HbDQ99K]KQW&?[M@ddYRe2G<#F^OR9W
AU#06EW,B(L#7@>T)06ESJ^<#13]R.DbIW+c.Je0&Ea=HdH:-4e-SON#YT3Rd=;Y
2W(2/IF6ZQ^#.$
`endprotected
`endif
endmodule       // end of fifo module.

module FIFO_RAM_AFXM
`ifdef VCS  // VCS Release 5.0.1A
`protected
D\EXM.XaCVBU9I_:-fTY)5@:-1GW
;R)MbMICTCKDQL:L/&^:[^=U7Y:4GH6>d8F86@6M]N8M?2&NgI]Q\G,^,g@82JYK
X_X1RE@K3aIXI+TBZ;\A8/C3^HOT14FTI/cIY#)<,T.V>Z48gJ&^bD=
f4=U[:YXC?5PUN_6@/;U6VMV&5WL)ZD-G+U89N;<=FJ)-OMdOTH7MWL;5#IZ]2]-J)F.g1cQ,=FD(,3M/9.79CDF4F5@S2+W6/bY&_4N;V9J3MM,S[V20L[_Q_W^-ScfP\]@DA7eV]55HP<<:QXK&V_DX
?eWeWG6\]1_I3#_0a0XZ2c6@:cI-1/D@&Sf]90-IfP#HBP1C^+a)4^4X0NX4Q/2,c1He)9S8&KGV.A=>6f85PYa>Q<->7ZT87AVZ/a
4aUU]\+Yb.;WO7,_?Lb:g4Wfe)&O](W#6,XOb-9C7[AJ?g56VQ
:bKL;B6gg+b(-2-BA>XGA/]^1#1:#C=X#6a;eBReT5JJ/_+aUY/SH>BffD#\@6B4
:Q#eYZMJ&LbVQT)\&^cM)4[IFMYQHTCa)-XBW]FJ5RK=fG3O\P3)PQ>&
TH>)gRd,YTbL^WPX>_UZC?JJ<7,+(d1DaUNH_\1BUFI7\/d0&X9EPF2H.OFT(GT3
VgHO<-\R+9S;GaRM?S=M]6UQV8BbMU@AYM6#-XY<
gg1+cJW^;RF#OO;G>D(eR:V-4d5G7UW>Z8Ke<:]9;C3
7O1K6/DYRQZ.;._R/bVAMaYHLKDARBgP#>>9I7R.,6df>ZVQQa&D;4ZeQ@@MQG\EbFI,,
C\A2[Le[aMId;89Q9?>T-[UI2+4#27[&#;M=8(8YJDH>M.]Y=C:Hd+#=a7\B.9Y,/_,2VQ^&ZRTE:J
@MgK?QaZ<79B1#gNTL8AY,:,BRJX#+,,1CNA<0HP^FT3[;I01&:7SK_8c#9bNY##
aF=TaWe;23afWaL>PZR)CQ7MfAd>/e)89/,TgaZ6U.\JYg42#I\^0TCYZEL0QcEM
+4C9+#CSP&?e8FR:E[&,^E50Cb-#<[,,>:RG]T&1FWDJDM\PIZ;RZ2)4WSIC
>2KKKTL1=b+]]G95E/]ZHB9-McJV>L70N+-F.d?[A7aI:GCdgZH2=Y0@WM&=FP+]
ZD8;b.3]Ja?>+>g=U&Z4:>6f64J1e?2X@/.TR(WJG<,)J=LU)&,SDJU)1+ZB7g061MAb:O-a+@P5c-Jg\5=THdRYU5UgB&<&0@YfQ7\349+I9b-7#T]PHXf;2dFQ
93aIO5VBN>_)3fX;NaH(Q6X#PI?>O:+@U#c@P_aeXE5-CN@/W_H9d(2C(/K)5L]>
g?)M+eA^R);HW9eB9\+,\CSH^<4XgL9&C-Qd23X\);SV:Wb>:Oe;T:^5UY1,(KEO
V(B\8/e:YFgQfW89;]G/NQ0U;ZX(?_=9OO8L:d6ES9&L>3(FWbVI;6Z>7\F#5()OVW#_WGZBH]Vd
L[2aSLg,b:>PS:3^9E5G[K7a;A^_OcgT=>bE7>B6;R=9Xbg&6_b&c[(54,1,90@_
+@2,-8.:F_-\,CDf5:^3&N#6WS.Bac@Y4+e@.I/CL54feLL0)/g,SN5#-H;(37#PN_#/MW+^1,18+/73gT1.#/DJ^;QU]
EPabQ8@=@-LcIM6V]_-ZFRI,aTKEW[JNceE<4;e=0
P]64gbUZGWGYU
_L=FZ5VQNSXE2595[5^\#SD>51:EX.7XC+&+8EP+dR^TES_7f6Y8c)Q/K$
`endprotected
`endif
endmodule
HierarchyFilesModulesSignalsTasksFunctionsHelp

This page: Created:Thu Aug 19 11:57:20 1999
From: ../../../sparc_v8/ssparc/pcic/pci_core/rtl.vcs/async_fifo_afxm.vp

Verilog converted to html by v2html 5.0 (written by Costas Calamvokis).Help