ramn_r_w.vhd

Xilinx Ise 官方源代码盘 第四章

--
@ER--RbBF$osHE50RO42RgRgU1b$MDHHO0R$,Q3MO
R--RDqDRosHER0#sCC#s8PC3-
-

---1-RHDlbCqR)vHRI0#ERHDMoC7Rq71) 1FRVsFRL0sERCRN8NRM8I0sHC-
-RsaNoRC0:HRXDGHM

---4-Rj4/jR01CRQW)av _m_7 qIR5sCH0RsbF002RF R)qw7_Qa)1RRHM8NCVkRD0V
Fs-R-RRMOFVODH0CRs#kFD0MHFRsbkbCF#3CR)VRCs0eFRHCs0GQ-QRtwuqNR]MF8LF-	
-RRRBbEN0.CsR#"zHRMoAODF	CR1D0CO)RqvvFClsR$"#0COH3FM
LDHs$NsRCHCCk;
#HCRC3CC#_08DHFoO4_4nNc3D
D;kR#CHCCC38#0_oDFH#O_HCoM8D3NDD;
HNLssP$RHCs0G
.;kR#CP0HsC3G.ObFlFMMC0N#3D
D;CHM00)$Rq_vh)R_WHS#
oCCMsRHO5R
SRVRRNDlH$RR:#H0sM:oR=MR"F"MC;S
SI0H8ERR:HCM0oRCs:4=R;SR
S8N8s8IH0:ERR0HMCsoCRR:=nR;RRRRRR-R-RoLHRFCMkRoEVRFs80CbES
S80CbERR:HCM0oRCs:c=RUS;
Sk8F0C_soRR:LDFFCRNM:V=RNCD#;RRRR-RR-NRE#kRF00bkRosC
8SSHsM_C:oRRFLFDMCNRR:=V#NDCR;RRRRRR-R-R#ENR08NNMRHbRk0s
CoRRRRRRRRs_#08NN0R#:R0MsHoS;
S_IslCF8:0R#soHMRR:="QW)aw _Qa)1"S;
S8sN8ss_C:oRRFLFDMCNRR:=V#NDCR;RRRRR-E-RNs#RCRN8Ns88CR##s
CoSNSI8_8ssRCo:FRLFNDCM:RR=NRVDR#CRRRRRR--ERN#I0sHC8RN8#sC#CRsoS
S2S;
b0FsRS5
Sz7maF:Rk#0R0D8_FOoH_OPC05FsI0H8ER-48MFI0jFR2S;
S7)q7:)RRRHM#_08DHFoOC_POs0F58N8s8IH04E-RI8FMR0Fj
2;SQS7h:RRRRHM#_08DHFoOC_POs0F58IH04E-RI8FMR0Fj
2;SqSW7R7):MRHR8#0_oDFHPO_CFO0s85N8HsI8-0E4FR8IFM0R;j2
WSS :RRRRHM#_08DHFoOR;RRRRRRR--I0sHCMRCNCLDRsVFRlsN
BSSp:iRRRHM#_08DHFoOR;RRRRRRR--OODF	FRVsNRslN,R8,8sRM8H
mSSBRpi:MRHR8#0_oDFHRO;RRRRRR--FRb0OODF	FRVs_RI80Fk
RRRRRRRRR h:MRHR8#0_oDFHRO;RRRRR-RR-MRCNCLD
RRRRRRRR W_hRR:H#MR0D8_FOoH;RRRRRRRRR--CLMNDRC
RRRRR)RR1:aRRRHM#_08DHFoORRRRRRRRR--#
#sRRRRRRRR2C;
MC8RM00H$qR)v)h__
W;

---w-RH0s#RbHlDCClM00NHRFMl0k#RRLCODNDCN8RsjOE

--NEsOHO0C0CksRFLDOs	_NFlRVqR)v)h__HWR#k
VMHO0FVMRk_MOH0MH5:LRRFLFDMCN2CRs0MksRs#0HRMoHL#
CMoH
HRRVLR52ER0CRM
RsRRCs0kMh5"FCRsNI8/sCH0RMOFVODH0EROC3O	Rl1Hk0DNHRFMllH#NE0OR#bF#DHLC!R!"
2;RDRC#RC
RsRRCs0kMB5"F8kDR0MFRbHlDCClMA0RD	FORv)q3#RQRC0ERNsC88RN8#sC#CRso0H#C8sCRHk#M0oRE#CRNRlCOODF	#RNRC0ERv)q?;"2
CRRMH8RVC;
MV8Rk_MOH0MH;k
VMHO0FoMRCC0_M88_CEb05x#HCRR:HCM0oRCs;CR8bR0E:MRH0CCoss2RCs0kMMRH0CCos#RH
sPNHDNLCHRlMH_#x:CRR0HMCsoCRR:=jL;
CMoH
lRRH#M_HRxC:8=RCEb0;R
RH5VR#CHxR8<RCEb02ER0CRM
RlRRH#M_HRxC:#=RH;xC
CRRMH8RVR;
R0sCkRsMl_HM#CHx;R
RCRM8o_C0C_M880CbEN;
0H0sLCk0RMoCC0sNFss_CsbF0RR:#H0sM
o;-0-N0LsHkR0CoCCMsFN0sC_sb0FsRRFVLODF	N_slRR:NEsOHO0C0CksRRH#VOkM_HHM0N5s8_8ss2Co;-
-RoLCHLMRD	FORlsNRbHlDCClM00NHRFM#MHoN
D#VOkM0MHFRs#0H.Mo#5DPNRR:#H0sMRo2skC0s#MR0D8_FOoH_OPC0RFsHP#
NNsHLRDC#RDP:0R#8F_Do_HOP0COFNs5'oEHE'-NDRFI8MFI0jFR2P;
NNsHLRDCHRR:HCM0o;Cs
oLCHRM
RsVFRHHRMRRj0#FRDEP'HRoEDbFF
RRRRRHV5NN5'oEHE2-HR'=R4R'20MEC
RSR#5DPH:2R=4R''S;
CCD#
RSR#5DPH:2R=jR''S;
CRM8H
V;RMRC8FRDF
b;RCRs0MksRP#D;M
C80R#soHM.P#D;k
VMHO0F#MRD#P.0MsHoR5N:0R#8F_Do_HOP0COFRs2skC0s#MR0MsHo#RH
sPNHDNLCRR#:0R#soHM5EN'H-oENF'DIR+48MFI04FR2P;
NNsHLRDCHRR:HCM0o;Cs
oLCHRM
RsVFRHHRM'RNDRFI0NFR'oEHEFRDFRb
RHRRVNR55RH2=4R''02RE
CMS#RR5NH-'IDF+R42:'=R4
';S#CDCR
SRH#5-DN'F4I+2=R:R''j;C
SMH8RVR;
R8CMRFDFbR;
R0sCkRsM#C;
M#8RD#P.0MsHoN;
0H0sLCk0R_GObbsF#RR:#H0sM
o;-F-OMN#0M#0RsDPNR#:R0D8_FOoH_OPC05FsI0H8ER-48MFI0jFR2=R:Rs#0H.Mo#5DPs_#08NN02-;
-CRLoRHMLODF	NRsllRHblDCCNM00MHFRo#HM#ND
MVkOF0HMCRo0E_OFCHO_8IH0IE5HE80RH:RMo0CCRs2skC0sHMRMo0CCHsR#N
PsLHNDPCRN:DRR0HMCsoCRR:=jP;
NNsHLRDC8dHP.8,RHnP4,HR8PRU,8cHP,HR8PR.,84HPRH:RMo0CC
s;LHCoMR
R8dHP.=R:RH5I8-0E4d2/.R;
RP8H4:nR=IR5HE80-/424
n;RHR8P:UR=IR5HE80-/42UR;
RP8Hc=R:RH5I8-0E4c2/;R
R8.HPRR:=58IH04E-2;/.
8RRHRP4:5=RI0H8E2-4;R
RH5VR84HPRj>R2ER0CRM
RPRRN:DR=NRPDRR+4R;
R8CMR;HV
HRRV8R5HRP.>2RjRC0EMR
RRNRPD=R:RDPNR4+R;R
RCRM8H
V;RVRHRH58P>cRRRj20MEC
RRRRDPNRR:=PRND+;R4
CRRMH8RVR;
RRHV5P8HURR>j02RE
CMRRRRPRND:P=RN+DRR
4;RMRC8VRH;R
RH5VR84HPnRR>j02RE
CMRRRRPRND:P=RN+DRR
4;RMRC8VRH;-
-RVRHRH58PRd.>2RjRC0EM-
-RRRRPRND:P=RN+DRR
4;-R-RCRM8H
V;RCRs0MksRR5.*P*RN;D2
8CMR0oC_FOEH_OCI0H8EV;
k0MOHRFMo_C0OHEFO8C_CEb05b8C0:ERR0HMCsoC2CRs0MksR0HMCsoCR
H#PHNsNCLDRO8_EOFHCC_8bR0E:MRH0CCos=R:R
j;LHCoMR
RH5VR80CbERR>U.4g2ER0CRM
R8RR_FOEH_OC80CbE=R:Rd4nU
c;RDRC#RHV5b8C0<ER=4RUgN.RM88RCEb0Rc>RjRgn2ER0CRM
R8RR_FOEH_OC80CbE=R:RgU4.R;
R#CDH5VR80CbE=R<RgcjnMRN8CR8bR0E>jR.cRU20MEC
RRRRO8_EOFHCC_8bR0E:c=Rj;gn
CRRDV#HRC58bR0E<.=RjRcUNRM880CbERR>4cj.R02RE
CMRRRR8E_OFCHO_b8C0:ER=jR.c
U;RDRC#RHV5b8C0<ER=jR4.NcRM88RCEb0R6>R4R.20MEC
RRRRO8_EOFHCC_8bR0E:4=Rj;.c
CRRDV#HRC58bR0E<6=R4R.20MEC
RRRRO8_EOFHCC_8bR0E:6=R4
.;RMRC8VRH;R
RskC0s8MR_FOEH_OC80CbEC;
Mo8RCO0_EOFHCC_8b;0E
F
OMN#0MI0R_FOEH_OCI0H8ERR:HCM0oRCs:o=RCO0_EOFHCH_I850EI0H8E
2;O#FM00NMROI_EOFHCC_8bR0E:MRH0CCos=R:Rd4nUIc/_FOEH_OCI0H8EO;
F0M#NRM08E_OFCHO_b8C0:ERR0HMCsoCRR:=o_C0OHEFO8C_CEb05b8C0;E2
MOF#M0N0_R8OHEFOIC_HE80RH:RMo0CC:sR=nR4d/Uc8E_OFCHO_b8C0
E;
MVkOF0HMCRo0k_MlC_OD5D#I:8RR0HMCsoC;FOEH_OCI:8RR0HMCsoC2CRs0MksR0HMCsoCR
H#PHNsNCLDRlMk_DOCD:#RR0HMCsoC;C
Lo
HMRkRMlC_ODRD#:5=RI48-2E/OFCHO_RI8+;R4
sRRCs0kMkRMlC_OD;D#
8CMR0oC_lMk_DOCD
#;
MVkOF0HMCRo0H_#xIC5M:ORR0HMCsoC;MR8ORR:HCM0o2CsR0sCkRsMHCM0oRCsHL#
CMoH
RRRskC0sIMRM*ORRO8M;M
C8CRo0H_#x
C;
MVkOF0HMCRo0F_LF5D88H_#x:CRR0HMCsoC;_RI#CHxRH:RMo0CCRs;8I_ORH:RMo0CCRs;II_ORH:RMo0CCRs2skC0sHMRMo0CCHsR#C
Lo
HMH5VR8H_#x<CR=_RI#CHx2ER0CRM
R0sCkRsM8I_O;D
C#RC
R0sCkRsMII_O;M
C8VRH;M
C8CRo0F_LF;D8
F
OMN#0MO0REOFHCH_I8R0E:MRH0CCos=R:R0oC_FLFDo85C#0_H5xCo_C0M_klODCD#H5I8,0ERO8_EOFHCH_I820E,0oC_lMk_DOCD8#5CEb0,_R8OHEFO8C_CEb02
2,RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR0oC_x#HCC5o0k_MlC_OD5D#I0H8EI,R_FOEH_OCI0H8Eo2,CM0_kOl_C#DD5b8C0RE,IE_OFCHO_b8C02E2,S
SSSSSSSSSS_R8OHEFOIC_HE80,_RIOHEFOIC_HE802O;
F0M#NRM0I0H8Ek_MlC_ODRD#:MRH0CCos=R:R0oC_FLFDo85C#0_H5xCo_C0M_klODCD#H5I8,0ERO8_EOFHCH_I820E,0oC_lMk_DOCD8#5CEb0,_R8OHEFO8C_CEb02
2,RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRo_C0#CHx50oC_lMk_DOCDI#5HE80,_RIOHEFOIC_HE802C,o0k_MlC_OD5D#80CbEI,R_FOEH_OC80CbE,22
SSSSSSSSSSSRRRR58IH04E-2_/8OHEFOIC_HE80,IR5HE80-/42IE_OFCHO_8IH0RE2+;R4
MOF#M0N0CR8b_0EM_klODCD#RR:HCM0oRCs:o=RCL0_F8FD50oC_x#HCC5o0k_MlC_OD5D#I0H8E8,R_FOEH_OCI0H8Eo2,CM0_kOl_C#DD5b8C0RE,8E_OFCHO_b8C02E2,R
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR0oC_x#HCC5o0k_MlC_OD5D#I0H8EI,R_FOEH_OCI0H8Eo2,CM0_kOl_C#DD5b8C0RE,IE_OFCHO_b8C02E2,S
SSSSSSSSSR5RR80CbE2-4/O8_EOFHCC_8b,0ERC58b-0E4I2/_FOEH_OC80CbE+2RRS4;RF
OMN#0Mx0RCRsF:0R#8F_Do_HOP0COFOs5EOFHCH_I8*0EI0H8Ek_MlC_OD-D#I0H8ER-48MFI0jFR2=R:R05FE#CsRR=>'2j';F
OMN#0M#0RsDPN_P#DR#:R0D8_FOoH_OPC05FsOHEFOIC_HE80*8IH0ME_kOl_C#DD-84RF0IMF2RjRR:=xFCsR#&R0MsHoD.#P#5s0N_80;N2
MOF#M0N0sR#PRND:0R#soHM5FOEH_OCI0H8EH*I8_0EM_klODCD#FR8IFM0RR42:#=RD#P.0MsHos5#P_ND#2DP;-
-RoLCHLMRD	FORlsNRbHlDCClM00NHRFM#MHoN
D#0C$bR0Fk_#Lk4$_0bHCR#sRNsRN$5b8C0ME_kOl_C#DD-84RF0IMF,RjR8IH0ME_kOl_C#DD-84RF0IMF2RjRRFV#_08DHFoO#;
HNoMDkRF0k_L#:4RR0Fk_#Lk4$_0bRC;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-7R.RsNsNF$RV_Rs80FkRM5HbRk000FRs#H-0CN0#02
$RbCF_k0L.k#_b0$C#RHRsNsN5$R80CbEk_MlC_OD-D#4FR8IFM0RRj,.H*I8_0EM_klODCD#R+48MFI0jFR2VRFR8#0_oDFH
O;#MHoNFDRkL0_kR#.:kRF0k_L#0._$;bCRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-.-R7sRNsRN$FsVR_k8F0HR5M0bkRR0F0-sH#00NC
#20C$bR0Fk_#Lkc$_0bHCR#sRNsRN$5b8C0ME_kOl_C#DD-84RF0IMF,RjRIc*HE80_lMk_DOCDd#+RI8FMR0FjF2RV0R#8F_Do;HO
o#HMRNDF_k0Lck#RF:RkL0_k_#c0C$b;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--.N7Rs$sNRRFVsF_8k50RHkMb0FR0RH0s-N#002C#
b0$CkRF0k_L#0U_$RbCHN#Rs$sNRC58b_0EM_klODCD#R-48MFI0jFR,*RUI0H8Ek_MlC_OD+D#(FR8IFM0RRj2F#VR0D8_FOoH;H
#oDMNR0Fk_#LkURR:F_k0LUk#_b0$CR;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RR.7NNss$VRFR8s_FRk05bHMk00RFsR0H0-#N#0C2$
0bFCRkL0_kn#4_b0$C#RHRsNsN5$R80CbEk_MlC_OD-D#4FR8IFM0RRj,4In*HE80_lMk_DOCD4#+6FR8IFM0RRj2F#VR0D8_FOoH;H
#oDMNR0Fk_#Lk4:nRR0Fk_#Lk40n_$;bCRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-.-R7sRNsRN$FsVR_k8F0HR5M0bkRR0F0-sH#00NC
#20C$bR0Fk_#Lkd0._$RbCHN#Rs$sNRC58b_0EM_klODCD#R-48MFI0jFR,.Rd*8IH0ME_kOl_C#DD+Rd48MFI0jFR2VRFR8#0_oDFH
O;#MHoNFDRkL0_k.#dRF:RkL0_k.#d_b0$CR;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RR.7NNss$VRFR8s_FRk05bHMk00RFsR0H0-#N#0C2H
#oDMNR0Fk_RCM:0R#8F_Do_HOP0COF8s5CEb0_lMk_DOCD4#-RI8FMR0FjR2;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-C-RMDNLCV#RF0sRs#H-0CN0#H
#oDMNR0Is_RCM:0R#8F_Do_HOP0COF8s5CEb0_lMk_DOCD4#-RI8FMR0FjR2;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-I-RsCH0RNCML#DCRsVFROCNEFRsIVRFRv)qRDOCD##
HNoMDMRH_osCR#:R0D8_FOoH_OPC05FsI0H8E4+dRI8FMR0FjR2;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RCk#8FR0RosCHC#0sQR7h#R
HNoMDkRF0C_soRR:#_08DHFoOC_POs0F58IH0dE+4FR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RCk#8FR0RosCHC#0smR7z#a
HNoMDkRF0C_so:4RR8#0_oDFHPO_CFO0sH5I8-0E4FR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--k8#CRR0FOFEF#LCRCC0IC7MRQNhRMF8Rkk0b0VRFRFADO)	Rq#v
HNoMDNRs8C_soRR:#_08DHFoOC_POs0F58N8s8IH04E-RI8FMR0FjR2;RRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RCk#8FR0RosCHC#0sqR)7
7)#MHoNIDRNs8_C:oRR8#0_oDFHPO_CFO0s85N8HsI8-0E4FR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-#RkC08RFCRso0H#CWsRq)77
o#HMRNDD_FIs8N8sRR:#_08DHFoOC_POs0F5R4d8MFI0jFR2R;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR--s8N8sHRL0H#RM0bkRR0F)RqvODCD#cR5R0LH#CRsJskHC
82#MHoNDDRFII_Ns88R#:R0D8_FOoH_OPC05Fs48dRF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-I-RNs88R0LH#MRHbRk00)FRqOvRC#DDRR5cL#H0RJsCkCHs8#2
HNoMDqR)7_7)0Rlb:0R#8F_Do_HOP0COFNs58I8sHE80-84RF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-k-R#RC80bFRHDbCHRMC)7q7)H
#oDMNR7Wq70)_l:bRR8#0_oDFHPO_CFO0s85N8HsI8-0E4FR8IFM0R;j2RRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-#RkC08RFHRbbHCDMWCRq)77
o#HMRND7_Qh0Rlb:0R#8F_Do_HOP0COFIs5HE80-84RF0IMF2Rj;RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-R-RCk#8FR0RbbHCMDHCQR7hH
#oDMNR_W 0Rlb:0R#8F_Do;HORRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR-RR-#RkC08RFHRbbHCDMWCR -
-R8CMRFLDOs	RNHlRlCbDl0CMNF0HMHR#oDMN#-
-RoLCH#MRCODC0NRsllRHblDCCNM00MHFRo#HM#ND
MVkOF0HMCRo0k_Mlc_n5b8C0RE:HCM0o2CsR0sCkRsMHCM0oRCsHP#
NNsHLRDCPRND:MRH0CCos=R:R
j;LHCoMR
RPRND:8=RCEb0/;nc
HRRV5R580CbEFRl8cRn2RR>cRU20MEC
RRRRDPNRR:=PRND+;R4
CRRMH8RVR;
R0sCkRsMP;ND
8CMR0oC_lMk_;nc
MVkOF0HMCRo0C_DVP0FCds_.C58bR0E:MRH0CCoss2RCs0kMMRH0CCos#RH
oLCHRM
R0sCk5sM80CbEFRl8cRn2C;
Mo8RCD0_CFV0P_Csd
.;VOkM0MHFR0oC_VDC0CFPsC58bR0E:MRH0CCosl;RN:GRR0HMCsoC2CRs0MksR0HMCsoCR
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