NATIONAL SEMICONDUCTOR

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<TABLE BORDER="0" CELLPADDING="2" CELLSPACING="11" WIDTH="891" BORDERCOLORLIGHT="#BF0000" BORDERCOLORDARK="#FF99CC" FRAME="VOID" RULES="COLS" ALIGN="LEFT" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP BGCOLOR=#FFFFCC HEIGHT= 780 ><NOBR><bR> <div> <IMG SRC="2a508c60.jpg" border=0 width="264" height="198" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="458" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 663 WIDTH="446"><bR> <div> <B>SC/MP LOW COST</B></div> <bR> <div> C'est un système d'étude et d'évaluation fabriqué en 1976 par la société <B>NATIONAL SEMICONDUCTOR </B></div> <bR> <bR> <div> Elle est architecturée autour du <FONT SIZE="3" COLOR="#00FFFF" FACE="Arial" ><A HREF="id91_microprocesseur.htm" TARGET="_top" TITLE="COMPOSANTS et BUS"><U>microprocesseur</U></A></FONT> INS 8060 SC/MPII dit SCAMP de NATIONAL SEMICONDUCTOR CORP qui pour principales caractéristiques:</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">boîtier 40 broches DUAL in LINE</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">8 bits de données trois états bidirectionnel</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">16 bits d'adresses (12 bits d'adresses + 4 bits sur  D0-D3 pendant NADS)</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">3 sorties directes (flags)</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">oscillateur d'horloge intégré</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">alimentation unique 5V</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">46 instructions</div> <div> <IMG BORDER="0" SRC="Wing0a73007700f0ffffff00.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">5 modes d'adressage</div> <bR> <div> La mémoire est constituée de 2 <FONT SIZE="3" COLOR="#00FFFF" FACE="Arial" ><A HREF="id91_memoire_eprom_ou_prom_ou_rom.htm" TARGET="_top" TITLE="COMPOSANTS et BUS"><U>PROM</U></A></FONT> de 256 octets</div> <div> La mémoire <FONT SIZE="3" COLOR="#00FFFF" FACE="Arial" ><A HREF="id91_memoire_ram.htm" TARGET="_top" TITLE="COMPOSANTS et BUS"><U>RAM</U></A></FONT> est constituée de 4 circuits de 256x4 bits soit 512 octets !!</div> <bR> <div> Un moniteur en <FONT SIZE="3" COLOR="#00FFFF" FACE="Arial" ><A HREF="id91_memoire_eprom_ou_prom_ou_rom.htm" TARGET="_top" TITLE="COMPOSANTS et BUS"><U>PROM</U></A></FONT> permet l'accès aux ressources de la carte.</div> <div> L'entrée des informations de programmation se fait à partir d'un clavier 20 touches  </div> <div> l'affichage a lieu exclusivement sur 6 afficheurs 7 segments.</div> <div> - 4 pour visualiser l'adresse</div> <div> - 2 pour visualiser la donnée ou l'instruction </div> <bR> <div> 3 interrupteurs permettent le focntionnement en mode pas à pas..</div> <bR> </tD> </tR> </TABLE></div> <div> Gracieusement offert par Monsieur GIRARD Michel</div> <bR> <div> <A HREF="id47.htm" TARGET="_top" TITLE="CARTES dETUDE et DEVALUATION"><U><IMG SRC="06d3b3a0.jpg" border=0 width="59" height="58" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 148 WIDTH="267"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="148" ALIGN="bottom" WIDTH="267" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="583"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="148" ALIGN="bottom" WIDTH="583" HSPACE="0" VSPACE="0"></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 158 WIDTH="267"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="158" ALIGN="bottom" WIDTH="267" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="583"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="158" ALIGN="bottom" WIDTH="583" HSPACE="0" VSPACE="0"></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 218 WIDTH="267"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="218" ALIGN="bottom" WIDTH="267" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="583"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="218" ALIGN="bottom" WIDTH="583" HSPACE="0" VSPACE="0"></tD> </tR> </TABLE></div> <bR> </td> </tr></table></body>