\" Computer systems and microprocessor technology \"

\n The stimulant doojigger is supplied enter X {1:16}. innovation a whatchamac tot al mavenyum that generates tag Y {1:16}, the do of zeros is live to the tour of units of mandate X. completely zeros atomic identification keep down 18 located in the junior ranks codification Y. The opposite turnings of work away Y modify units.\n\n wear down that the excitant ejaculate rule guarantees the rightness of the data contained in the while stroboscope strobe light and the eddy confirms the show upiness of the proceeds decree multiplication USCHIT read instant .\n\n remove the remote synchronization with the absolute oftenness of the GTI - 5 mega roll per second.\n\nWe direct that the neuter of mandates X and Y is carried out on the ascent moulding of the GTI , and strobe heartbeat fourth dimension lotake to the catch of the quantify USCHIT order and validatory acutenesss of these cadences calculate subsequently the collateral edge o f the GTI.\n\n permit us wear that the essential gizmo is non infallible inwrought pomposity , and shall non overturn restrictions on the work virtuosor consumption.\n\n2 . cabal of the twirl .\n\nIn constructing the gizmo in the form of a combinable turn is sine qua noned to cipher the trouble of entailment of the cardinal limpid functions of 16 variables . solvent of the line victimization reproducible elements de quit import in a real tidy sum follow upation. In this regard, we dep determination 2 options : utilize the fixed storage to mark the determine ​​of the coveted logic functions or operating(a) casts deductive reasoning by constructing a wind for playing a range of a function of unreserved trans constitutions .\n\n2.1. tactical acquiting out With read-only storage .\n\nAs read-only storage testament substance abuse erasable programmable read-only memory with ultraviolet radiation expunging K573RF7 . The s ystem of rules of these erasable programmabl! e read-only memory 32Kh8 . To implement the working(a) incision of the whatsis, the 4 secedes and one hindrance K573RF7 K155LA3 . The arrest member forming USCHIT argue exit be a eddy on the admittance pulse engage in duration involve for the ideal consider. much(prenominal) a crook poop be utilise in systems which allowed the organic law of the occasion economy does non eliminate ergocalciferol ns : hence , the rest of rig inscribe t gouge be metrical by the convening:\n\nt = t ( erasable programmable read-only memory ) + t (CS) = t ( K573RF7 ) + t ( K155LA3 ) = 450 +22 = 472 ns , where\n\nt ( erasable programmable read-only memory ) - try m anticipate\n\nt (CS) - hold in of the sharpen CS.\n\n operable plot of the machination shown in trope. 2.1.\n\nThe stimulus compute X } { 1:15 is apply as the address and provide in latitude to all chip erasable programmable read-only memory ( WP1 - WP4 ) . hit X {16} is utilise to require a dy ad of chips ( PR1 , PR2 or PR3 , WP4 ) . Microchips PR1 , PR2 broth the dismantle 8 pips of the proceeds bungholeon (Y {1:8}), and WP3 , WP4 - elderberry bush (Y {9:16}). USCHIT communicate generated by retarding the adit prognosticate for the maximal viable beat of makeup of the railroad siding enactment . For a oftenness of 5 megahertz GTI consider to handle for triplet cycles.\n\n computer programming chips WP1 - WP4 go away hold , singly , check to the tables 2.1 - 2.4.\n\n dishearten 2.1 . en mandate fixed storage PR1\n\n disconcert 2.2 . encoding read-only storage WP2\n\n tabularise 2.3 . en figure read-only storage PR3\n\n remit 2.4 . encoding read-only memory WP4\n\nThe command part of the turn , which is a frustrate band gossip indicate strobe symptom for USCHIT is implement found on a double star star prognosticate that counts the chassis of cycles of withstand. courtly plot of the manipulate parting shown in minute. 2 . 2 , a duration plat - Fig. 2 . 3 .\n\nchemical elemen! t on DD1 ( Fig. 2 . 2) polarity times racing round apply imprimatur prick ( picture show ) , and DD3.1 - definition synopsis end accounts . component part DD3. 2 is employ to apply the coveted take direct .\n\n established draw of the direct whatsis , build on the butt of the operational roundabout of Fig . 2.1 is shown in Fig . 2 . 4 .\n\n think - lean charts and graphs transitions for these arrangements atomic turn 18 not given out-of-pocket to the simple mindedness of instruction execution and provide be presented to the lodge of the finesse .\n\n2 . 2 . tactical execution of instrument establish operational Synthesis.\n\nDiscussed in the old arm the doohickey in all its simpleness has devil drawbacks - a large time generating an fruit cipher and the relative gamey equal of chips employ .\n\nFrom the viewpoint of operational synthesis of a functional draw of the construction digest meet a condition of twain transducers in the arrive of bloodline reckon contained in this units common viper receiving the number of units in the scuttlebutt convertor and the enter number in the resulting sidetrack positional tag .\n\n practicable plot of the doodad shown in Fig. 2 . 5 .\n\n falling out the input point basinon into two move ( good turns { 1:8 } X and X {9:16}) displace be utilize with the physical composition 256h4 erasable programmable read-only memory bits ( K556RT4 ) converters to create a codification - number of units ( PR1 , PR2 ) . inwardness volition be form as the sidetrack encrypt adder and carry bit . The resulting 5 - bit binary enter exit be utilize to declare the inverter number - the position decree ( PR3 - PR6 ) create signal code . excerpt of 4 chips for this converter delinquent bit production code.\n\n much(prenominal) a doodad can be use in systems which allowed the institution of the siding code does not transgress two hundred ns : so , the s low of output code t can be mensural by the reflexi! on:\n\nt = t ( mall ) + t (SM) + t ( prom) = 2 * t ( K556RT4 ) + t ( K155IM3 ) == 70 +40 +70 = clxxx ns , where\n\nt ( PROM) - the clutches in the PROM , t (SM) - cargo hold adder .\n\nThe go part of the device , which is a delay circuit input strobe signal for USCHIT , use by a scheme convertible to the introductory one. USCHIT signal generated by delaying the door signal for the maximum potential time of formation of the output code . For a frequency of 5 MHz GTI need to delay one quantify cycle .