ram_rw.vhd

Xilinx Ise 官方源代码盘 第四章

H#PHNsNCLDRDPNRH:RMo0CC:sR=;Rj
oLCHRM
RRHV5b8C0-ERRGlNRR>=j02RE
CMRRRRPRND:8=RCEb0Rl-RN
G;RDRC#RC
RPRRN:DR=CR8b;0E
CRRMH8RVR;
R0sCk5sMP2ND;M
C8CRo0C_DVP0FC
s;VOkM0MHFR0oC_lMk_5d.80CbERR:HCM0o2CsR0sCkRsMHCM0oRCsHP#
NNsHLRDCPRND:MRH0CCos=R:R
j;LHCoMR
RH5VR80CbE=R<RRcUNRM880CbERR>4Rn20MEC
RRRRNRPD=R:R
4;RMRC8VRH;R
RskC0sPMRN
D;CRM8o_C0M_kld
.;VOkM0MHFR0oC_lMk_54n80CbERR:HCM0o2CsR0sCkRsMHCM0oRCsHP#
NNsHLRDCPRND:MRH0CCos=R:R
j;LHCoMR
RH5VR80CbE=R<RR4nNRM880CbERR>j02RE
CMRRRRRDPNRR:=4R;
R8CMR;HV
sRRCs0kMNRPDC;
Mo8RCM0_k4l_n-;
-MOF#M0N0kRMlC_ODRD#:MRH0CCos=R:R55580CbERR-4/2RR2d.R5+R5C58bR0E-2R4R8lFR2d.R4/Rn;22R-RR-RRyF)VRq.vdXR41ODCD#CRMC88CRF
OMN#0MM0RkOl_C_DD4R.U:MRH0CCos=R:R0oC_lMk_U4.5b8C0;E2
MOF#M0N0CRDVP0FCns_cRR:HCM0oRCs:o=RCD0_CFV0P_Csn8c5CEb02O;
F0M#NRM0M_klODCD_Rnc:MRH0CCos=R:R0oC_lMk_5ncD0CVFsPC_2nc;F
OMN#0MD0RCFV0P_Csd:.RR0HMCsoCRR:=o_C0D0CVFsPC5VDC0CFPsc_n,cRn2O;
F0M#NRM0M_klODCD_Rd.:MRH0CCos=R:R0oC_lMk_5d.D0CVFsPC_2d.;F
OMN#0MD0RCFV0P_Cs4:nRR0HMCsoCRR:=o_C0D0CVFsPC5VDC0CFPs._d,.Rd2O;
F0M#NRM0M_klODCD_R4n:MRH0CCos=R:R0oC_lMk_54nD0CVFsPC_24n;0

$RbCF_k0L_k#0C$b_U4.RRH#NNss$MR5kOl_C_DD4R.U8MFI0jFR,HRI8-0E4FR8IFM0RRj2F#VR0D8_FOoH;$
0bFCRkL0_k0#_$_bCnHcR#sRNsRN$5lMk_DOCDc_nRI8FMR0FjI,RHE80-84RF0IMF2RjRRFV#_08DHFoO0;
$RbCF_k0L_k#0C$b_Rd.HN#Rs$sNRk5MlC_ODdD_.FR8IFM0RRj,I0H8ER-48MFI0jFR2VRFR8#0_oDFH
O;0C$bR0Fk_#Lk_b0$Cn_4RRH#NNss$MR5kOl_C_DD48nRF0IMF,RjR8IH04E-RI8FMR0FjF2RV0R#8F_Do;HO
o#HMRNDF_k0L_k#4R.U:kRF0k_L#$_0b4C_.RU;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-7R.RsNsNF$RVFR8k50RHkMb0FR0RH0s-N#002C#
o#HMRNDF_k0L_k#n:cRR0Fk_#Lk_b0$Cc_n;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--.N7Rs$sNRRFV80FkRM5HbRk000FRs#H-0CN0##2
HNoMDkRF0k_L#._dRF:RkL0_k0#_$_bCdR.;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-7R.RsNsNF$RVFR8k50RHkMb0FR0RH0s-N#002C#
o#HMRNDF_k0L_k#4:nRR0Fk_#Lk_b0$Cn_4;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--.N7Rs$sNRRFV80FkRM5HbRk000FRs#H-0CN0##2
HNoMD_R#F_k0C:MRR8#0_oDFHPO_CFO0sk5MlC_OD4D_.8URF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RNCML#DCRsVFRH0s-N#00
C##MHoNFDRkC0_Mc_nR#:R0D8_FOoH;H
#oDMNR0Fk__CMd:.RR8#0_oDFH
O;#MHoNFDRkC0_Mn_4R#:R0D8_FOoH;H
#oDMNRI#_sC0_MRR:#_08DHFoOC_POs0F5lMk_DOCD._4UFR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--I0sHCMRCNCLD#FRVsNRCOsERFFIRVqR)vCROD
D##MHoNIDRsC0_Mc_nR#:R0D8_FOoH;H
#oDMNR0Is__CMd:.RR8#0_oDFH
O;#MHoNIDRsC0_Mn_4R#:R0D8_FOoH;H
#oDMNRH#_MC_soRR:#_08DHFoOC_POs0F58IH04E-RI8FMR0FjR2;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RCk#8FR0RosCHC#0sQR7h#R
HNoMD_R#F_k0sRCo:0R#8F_Do_HOP0COFIs5HE80-84RF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-#RkC08RFCRso0H#C7sRm
za#MHoN#DR__N8sRCo:0R#8F_Do_HOP0COFNs58I8sHE80-84RF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-k-R#RC80sFRC#oH0RCsq)77
o#HMRNDD_FINs88R#:R0D8_FOoH_OPC05FsnFR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-8RN8LsRHR0#HkMb0FR0Rv)qRDOCD5#RcHRL0s#RCHJks2C8
MOF#M0N0#RDLH_I8R0E:MRH0CCos=R:R8IH0UE-*_5#I0H8Es_Ns5N$d42-2*-c#H_I8_0ENNss$25.-#.*_8IH0NE_s$sN5-42#H_I8_0ENNss$25j;$
0b0CRlNb_s$sNU#RHRsNsN5$R#H_I8_0ENNss$25d-84RF0IMF2RjRRFV#_08DHFoOC_POs0F58(RF0IMF2Rj;H
#oDMNRb0l_dU_.0,RlUb__R4n:lR0bs_NsUN$;-
-R8CMRD#CCRO0sRNlHDlbCMlC0HN0F#MRHNoMDN#
0H0sLCk0Rs\3NFl_VCV#0:\RRs#0H;Mo
C
Lo
HMRRR
RdzcRH:RVNR58_8ss2CoRMoCC0sNC-R-RMoCC0sNCDRLFRO	s
NlRRRR-Q-RV8RN8HsI8R0E<EROFCHO_8IH0NER#o#HMjR''FR0RkkM#RC8L#H0
RRRRRzjRH:RVNR58I8sHE80R4=R2CRoMNCs0RC
RRRRRDRRFsI_Ns88RR<="jjjjjjjjjjjjRj"&7Rq7j)52R;
RRRRRDRRFII_Ns88RR<="jjjjjjjjjjjjRj"&8RN_osC5;j2
RRRR8CMRMoCC0sNCjRz;R
RR4RzRRR:H5VRNs88I0H8ERR=.o2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"jjjjjjjjjjRj"&7Rq74)5RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<Rj"jjjjjjjjjjRj"&8RN_osC584RF0IMF2Rj;R
RRMRC8CRoMNCs0zCR4R;
RzRR.:RRRRHV58N8s8IH0=ERRRd2oCCMsCN0
RRRRRRRRIDF_8sN8<sR=jR"jjjjjjjjjRj"&7Rq7.)5RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<Rj"jjjjjjjjjj&"RR_N8s5Co.FR8IFM0R;j2
RRRR8CMRMoCC0sNC.Rz;R
RRdRzRRR:H5VRNs88I0H8ERR=co2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"jjjjjjjjj"RR&q)7758dRF0IMF2Rj;R
RRRRRRFRDIN_I8R8s<"=RjjjjjjjjjRj"&8RN_osC58dRF0IMF2Rj;R
RRMRC8CRoMNCs0zCRdR;
RzRRc:RRRRHV58N8s8IH0=ERRR62oCCMsCN0
RRRRRRRRIDF_8sN8<sR=jR"jjjjjjjj"RR&q)7758cRF0IMF2Rj;R
RRRRRRFRDIN_I8R8s<"=Rjjjjjjjjj&"RR_N8s5CocFR8IFM0R;j2
RRRR8CMRMoCC0sNCcRz;R
RR6RzRRR:H5VRNs88I0H8ERR=no2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"jjjjjjRj"&7Rq76)5RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<Rj"jjjjjjRj"&8RN_osC586RF0IMF2Rj;R
RRMRC8CRoMNCs0zCR6R;
RzRRn:RRRRHV58N8s8IH0=ERRR(2oCCMsCN0
RRRRRRRRIDF_8sN8<sR=jR"jjjjjRj"&7Rq7n)5RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<Rj"jjjjjj&"RR_N8s5ConFR8IFM0R;j2
RRRR8CMRMoCC0sNCnRz;R
RR(RzRRR:H5VRNs88I0H8ERR=Uo2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"jjjjj"RR&q)7758(RF0IMF2Rj;R
RRRRRRFRDIN_I8R8s<"=RjjjjjRj"&8RN_osC58(RF0IMF2Rj;R
RRMRC8CRoMNCs0zCR(R;
RzRRU:RRRRHV58N8s8IH0=ERRRg2oCCMsCN0
RRRRRRRRIDF_8sN8<sR=jR"jjjj"RR&q)7758URF0IMF2Rj;R
RRRRRRFRDIN_I8R8s<"=Rjjjjj&"RR_N8s5CoUFR8IFM0R;j2
RRRR8CMRMoCC0sNCURz;R
RRgRzRRR:H5VRNs88I0H8ERR=4Rj2oCCMsCN0
RRRRRRRRIDF_8sN8<sR=jR"j"jjRq&R757)gFR8IFM0R;j2
RRRRRRRRIDF_8IN8<sR=jR"j"jjRN&R8C_soR5g8MFI0jFR2R;
RCRRMo8RCsMCNR0Cz
g;RRRRzR4jRH:RVNR58I8sHE80R4=R4o2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"jj&"RR7q7)j54RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<Rj"jj&"RR_N8s5Co48jRF0IMF2Rj;R
RRMRC8CRoMNCs0zCR4
j;RRRRzR44RH:RVNR58I8sHE80R4=R.o2RCsMCN
0CRRRRRRRRD_FIs8N8s=R<Rj"j"RR&q)775R448MFI0jFR2R;
RRRRRDRRFII_Ns88RR<=""jjRN&R8C_so454RI8FMR0Fj
2;RRRRCRM8oCCMsCN0R4z4;R
RR4Rz.:RRRRHV58N8s8IH0=ERR24dRMoCC0sNCR
RRRRRRFRDIN_s8R8s<'=Rj&'RR7q7).54RI8FMR0Fj
2;RRRRRRRRD_FII8N8s=R<R''jRN&R8C_so.54RI8FMR0Fj
2;RRRRCRM8oCCMsCN0R.z4;R
RR4Rzd:RRRRHV58N8s8IH0>ERR24dRMoCC0sNCR
RRRRRRFRDIN_s8R8s<q=R757)48dRF0IMF2Rj;R
RRRRRRFRDIN_I8R8s<N=R8C_sod54RI8FMR0Fj
2;RRRRCRM8oCCMsCN0Rdz4;R

R-RR-VRQRH58MC_sos2RC#oH0RCs7RQhkM#HopRBiR
RR4Rzc:RRRRHV5M8H_osC2CRoMNCs0RC
RRRRRbRRsCFO#5#RB,piRh7Q2CRLo
HMRRRRRRRRRRRRH5VRBRpi=4R''MRN8pRBiP'CC2M0RC0EMR
RRRRRRRRRRRRRRMRH_osCRR<=5j"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjRj"&QR7h
2;RRRRRRRRRRRRCRM8H
V;RRRRRRRRCRM8bOsFC;##
RRRR8CMRMoCC0sNC4RzcR;
RzRR4R6R:VRHRF5M0HR8MC_soo2RCsMCN
0CRRRRRRRRRRRRHsM_C<oR="R5jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj"RR&72Qh;R
RRMRC8CRoMNCs0zCR4
6;
RRRRR--Q5VRsk8F0C_sos2RC#oH0RCs)m_7zkaR#oHMRm)_B
piRRRRzR4nRH:RV8R5F_k0s2CoRMoCC0sNCR
RRRRRRsRbF#OC#mR5B,piR0Fk_osC4L2RCMoH
RRRRRRRRRRRRRHV5pmBiRR='R4'NRM8miBp'CCPMR020MEC
RRRRRRRRRRRRRRRRz7ma=R<R0Fk_osC4R;
RRRRRRRRRCRRMH8RVR;
RRRRRCRRMb8RsCFO#
#;RRRRRRRRCRM8oCCMsCN0Rnz4;R
RR4Rz(:RRRRHV50MFRk8F0C_soo2RCsMCN
0CRRRRRRRRRRRR7amzRR<=F_k0s4Co;R
RRMRC8CRoMNCs0zCR4
(;
RRRRR--Q5VRNs88_osC2CRso0H#CqsR7R7)VRFsI0sHC#RkHRMoB
piRRRRzI4URRR:H5VRNs88_osC2CRoMNCs0RC
RRRRRbRRsCFO#5#RB,piR7q7)L2RCMoH
RRRRRRRRRRRRRHV5iBpR'=R4N'RMB8RpCi'P0CM2ER0CRM
RRRRRRRRRRRRRNRR8C_so=R<R7q7)85N8HsI8-0E4FR8IFM0R;j2
RRRRRRRRRRRR8CMR;HV
RRRRRRRR8CMRFbsO#C#;R
RRMRC8CRoMNCs0zCR4;UI
RRRRgz4IRR:H5VRMRF0Ns88_osC2CRoMNCs0RC
RRRRRRRRRNRR8C_so=R<R7q7)R;
RCRRMo8RCsMCNR0CzI4g;R

R-RR-GR 0RsNDHFoOFRVskR7NbDRFRs0OCN#
RRRRCzsoRR:bOsFC5##B2piRoLCHRM
RRRRRRHV5iBp'  ehNaRMB8Rp=iRR''42ER0CRM
RRRRRQR7hl_0b=R<Rh7Q;R
RRRRRR7)q70)_l<bR=7Rq7
);RRRRRWRRq)77_b0lRR<=Ns8_C
o;RRRRRWRR l_0b=R<R;W 
RRRRCRRMH8RVR;
RCRRMb8RsCFO#
#;
RRRRR--Q)VRCRN8qs88CR##=sRWHR0Cqs88C,##RbL$NR##7RQh0FFRkk0b0VRHRRW HC#RMDNLCR8
RzRRlRkG:sRbF#OC# 5W_b0l,qR)7_7)0,lbR7Wq70)_lRb,7_Qh0,lbR0Fk_osC2R
RRRRRLHCoMR
RRRRRRVRHRq5W7_7)0Rlb=qR)7_7)0RlbNRM8W0 _l=bRR''42ER0CRM
RRRRRRRRR0Fk_osC4=R<Rh7Q_b0l;R
RRRRRRDRC#RC
RRRRRRRRR0Fk_osC4=R<R0Fk_osC58IH04E-RI8FMR0Fj
2;RRRRRRRRCRM8H
V;RRRRCRM8bOsFC;##
RRRRRRRRR
RR-R-RMtCC0sNCER0CqR)vCRODRD#NRM8#CCDOD0RFOoHRsVFRv)qA_4n114_4R
RR4RzURR:H5VROHEFOIC_HE80R4=R2CRoMNCs0RC
RRRRRzRR4:gRRsVFRHHRM8R5CEb0_lMk_DOCD-#RRR428MFI0jFRRMoCC0sNCR
RR-R-RRQV58N8s8IH0>ERR24cRCMC8FR0RCOsNR0CI0sHCMRCNCLDR8NMR0FkbRk0CLMND#CRCODC0FRDo
HORRRRRRRRRRRRzR.j:VRHR85N8HsI8R0E>cR42CRoMNCs0RC
RRRRRRRRRRRRRFRRkC0_M25HRR<='R4'IMECRq5)7_7)05lbNs88I0H8ER-48MFI04FRc=2RRRH2CCD#R''j;R
RRRRRRRRRRRRRRsRI0M_C5RH2<W=R ERIC5MRNs8_CNo58I8sHE80-84RF0IMFcR42RR=HC2RDR#C';j'
RRRRRRRRRRRR8CMRMoCC0sNC.RzjR;
R-RR-VRQR85N8HsI8R0E<4=R.M2RFsRIHR0CCLMNDFCRskRF00bkRNCMLRDC#CCDOD0RFOoHRCMC8
C8RRRRRRRRRRRRzR.4:VRHR85N8HsI8R0E<4=Rco2RCsMCN
0CRRRRRRRRRRRRRRRRF_k0CHM52=R<R''4;R
RRRRRRRRRRRRRRsRI0M_C5RH2<W=R R;
RRRRRRRRRCRRMo8RCsMCNR0Cz;.4
RRRRR--tCCMsCN0RC0ERv)qRDOCDN#RM08Rs#H-0CN0#R
RRRRRRRRRR.Rz.RR:VRFs[MRHRH5I8_0EM_klODCD#RR-482RF0IMFRRjoCCMsCN0
RRRRRRRRRRRRRRRR0N0skHL0\CR3lsN_VFV#\C0RRFVAv)q_d4nU4cX7RR:DCNLD#RHR""W;R
RRRRRRRRRRRRRRCRLo
HMRRRRRRRRRRRRRRRRAv)q_d4nU4cX7RR:)Aqv41n_44_1
RRRRRRRRRRRRRRRRsbF0NRlb7R5Qjq52>R=R_HMs5Co[R2,q)77q>R=RIDF_8IN84s5dFR8IFM0R,j2RA7QRR=>",j"R7q7)=AR>FRDIN_s858s48dRF0IMF2Rj,R
RRRRRRRRRRRRRRhR q>R=R''4,1R1)=qR>jR''W,R =qR>sRI0M_C5,H2RiBpq>R=RiBp,hR A>R=R''4,1R1)=AR>jR''W,R =AR>jR''B,RpRiA=B>Rp
i,RRRRRRRRRRRRRRRR7Rmq=F>Rb,CMRA7m5Rj2=F>RkL0_k5#4H2,[2
;
RRRRRRRRRRRRRRRRF_k0s5Co[<2R=kRF0k_L#H45,R[2IMECRk5F0M_C5RH2=4R''C2RDR#C';Z'
RRRRRRRRRRRR8CMRMoCC0sNC.Rz.R;
RRRRRCRRMo8RCsMCNR0Cz;4g
RRRR8CMRMoCC0sNC4RzUR;RRRR
RRRRRR
RR-R-RMtCC0sNCER0CqR)vCRODRD#NRM8#CCDOD0RFOoHRsVFRv)qA_4n11._.R
RR.RzdRR:H5VROHEFOIC_HE80R.=R2CRoMNCs0RC
RRRRRzRR.:cRRsVFRHHRM8R5CEb0_lMk_DOCD-#RRR428MFI0jFRRMoCC0sNCR
RR-R-RRQV58N8s8IH0>ERR24dRCMC8FR0RCOsNR0CI0sHCMRCNCLDR8NMR0FkbRk0CLMND#CRCODC0FRDo
HORRRRRRRRRRRRzR.6:VRHR85N8HsI8R0E>dR42CRoMNCs0RC
RRRRRRRRRRRRRFRRkC0_M25HRR<='R4'IMECRq5)7_7)05lbNs88I0H8ER-48MFI04FRd=2RRRH2CCD#R''j;R
RRRRRRRRRRRRRRsRI0M_C5RH2<W=R ERIC5MRNs8_CNo58I8sHE80-84RF0IMFdR42RR=HC2RDR#C';j'
RRRRRRRRRRRR8CMRMoCC0sNC.Rz6R;
R-RR-VRQR85N8HsI8R0E<4=RdM2RFsRIHR0CCLMNDFCRskRF00bkRNCMLRDC#CCDOD0RFOoHRCMC8
C8RRRRRRRRRRRRzR.n:VRHR85N8HsI8R0E<4=Rdo2RCsMCN
0CRRRRRRRRRRRRRRRRF_k0CHM52=R<R''4;R
RRRRRRRRRRRRRRsRI0M_C5RH2<W=R R;
RRRRRRRRRCRRMo8RCsMCNR0Cz;.n