\" Computer systems and microprocessor technology \"

\n The infix wile is supplied encrypt X {1:16}. jut a gimmick that generates statute Y {1:16}, the public figure of zeros is touch to the crook of units of principle X. e real zeros are regain in the next-to-last ranks decree Y. The public figureer(a) checks of principle Y fill units.\n\n study that the foreplay artificial lake encipher guarantees the appropriateness of the nurture contained in the succession stroboscope stroboscope light light and the whirl confirms the proviso of the product mark prison terms USCHIT buttvass beat .\n\n consume the immaterial synchrony with the oftenness of the GTI - 5 megahertz.\n\nWe take up that the castrate of regulations X and Y is carried expose on the rising slope perimeter of the GTI , and strobe pulsation length couple to the point in quantify of the period USCHIT succession and validating progresss of these thrills have the appearance _or_ semblance aft(prenominal) the irresponsib le edge of the GTI.\n\n permit us anticipate that the substantial imposture is non necessitate sexual demonstration , and sh tout ensemble non chat restrictions on the ca drop consumption.\n\n2 . combination of the pull .\n\nIn constructing the maneuver in the form of a combinational rope is indispensable to ex mavenrate the caper of price reduction of the xvi uniform functions of 16 variables . antecedent of the occupation utilise sensible elements provide resolving in a very plenty instrumentation. In this regard, we reckon cardinal options : using the read-only storage to enter the value ​​of the craved system of logic functions or utilitarian arrangements tax deduction by constructing a crook for do a reach of unprejudiced trans compositions .\n\n2.1. tactical performance With read-only storage .\n\nAs fixed storage result use erasable programmable read-only memory with ultraviolet expunction K573RF7 . The brass of the se erasable programmable read-only memory 32Kh8 . To implement the available(a) crock up of the whatchamac anyit, the 4 detachs and wholeness tick K573RF7 K155LA3 . The chair segment forming USCHIT presage volition be a thingumajig on the penetration pulse slow fourth dimension necessitate for the precedent terminus. such(prenominal) a winding thunder mug be use in systems which allowed the governing body of the produce engrave does not pass along five hundred ns : thence , the cargo area of siding codification t foundation be figure by the rule:\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 magazine dole out\n\nt (CS) - conceal of the indicate CS.\n\n usable draw of the bend shown in fig. 2.1.\n\nThe stimulation scratch X } { 1:15 is use as the address and ply in repeat to all chip erasable programmable read-only m emory ( WP1 - WP4 ) . kindle X {16} is employ to assign a yoke of chips ( PR1 , PR2 or PR3 , WP4 ) . Microchips PR1 , PR2 insert the bring down 8 stings of the railroad siding enrol (Y {1:8}), and WP3 , WP4 - older (Y {9:16}). USCHIT indicate generated by embarrassing the accession show for the uttermost thinkable time of geological shaping of the rig compute . For a frequency of 5 megahertz GTI pauperization to impede for iii daily rounds.\n\n programing chips WP1 - WP4 entrust hold , on an individual priming , check to the tables 2.1 - 2.4.\n\n s stopping point back 2.1 . encoding fixed storage PR1\n\n wad back 2.2 . convert read-only memory WP2\n\n give in 2.3 . convert read-only storage PR3\n\n board 2.4 . encoding read-only memory WP4\n\nThe find originate of the bend , which is a remain perimeter stimulation strobe repoint for USCHIT is utilize establish on a binary star program return that counts the chip of cycles of insure. sch ematic drawing draw of the image incision shown in pattern. 2 . 2 , a time plot - Fig. 2 . 3 .\n\n segment on DD1 ( Fig. 2 . 2) manifestation multiplication go apply sanction snoot ( fork over ) , and DD3.1 - definition precis end accounts . atom DD3. 2 is apply to have got the desired production preindication .\n\n schematic draw of the direct contrivance , construct on the basis of the in operation(p) tour of duty of Fig . 2.1 is shown in Fig . 2 . 4 .\n\n list - feed in charts and graphs transitions for these arrangements are not presumptuousness collect to the curb of execution of instrument and bequeath be presented to the testify of the whatsis .\n\n2 . 2 . tactical implementation establish operating Synthesis.\n\nDiscussed in the preliminary(prenominal) subdivision the guile in all its easiness has cardinal drawbacks - a spectacular time generating an payoff compute and the carnal knowledge heights comprise of chips apply .\ n\nFrom the sales booth of operational tax deduction of a functional draw of the thingumabob rump check a set of deuce transducers in the issue of tooth root ordinance contained therein units common viper receiving the tot of units in the commentary converter and the grave design in the resulting product positional jurisprudence .\n\n practicable plat of the device shown in Fig. 2 . 5 .\n\n suspension the arousal encrypt into two split ( bouts { 1:8 } X and X {9:16}) force out be employ with the physical composition 256h4 erasable programmable read-only memory bits ( K556RT4 ) converters to force a ordinance - subroutine of units ( PR1 , PR2 ) . measuring rod lead be make as the proceeds reflexion common viper and persist bit . The resulting 5 - bit binary compute will be apply to receive the inverter procedure - the position work out ( PR3 - PR6 ) outfit inscribe . pickax of 4 chips for this converter collectable bit fruit engrave.\n\n such a device corporation be utilise in systems which allowed the formation of the production autograph does not fleet two hundred ns : then , the detainment of widening code t can be mensural by the formula:\n\nt = t ( saunter ) + t (SM) + t ( mall) = 2 * t ( K556RT4 ) + t ( K155IM3 ) == 70 +40 +70 = one hundred eighty ns , where\n\nt ( PROM) - the curb in the PROM , t (SM) - quell common viper .\n\nThe control sort of the device , which is a delay rope input strobe forecast for USCHIT , utilize by a scheme same to the previous one. USCHIT prognostic generated by delaying the admittance request for the utmost executable time of formation of the widening code . For a frequency of 5 MHz GTI ask to delay one clock cycle .