TMS320C6657CZHA IC DSP FIX/FLOAT POINT 625FCBGA

Inkcazo

Uyilo lwe-TI's KeyStone lubonelela ngeqonga elicwangcisekileyo elidibanisa ii-subsystems ezahlukeneyo (i-C66x cores, i-memory subsystem, i-peripherals, kunye ne-accelerators) kwaye isebenzisa amacandelo amaninzi amatsha kunye nobuchule bokwandisa i-intradevice kunye ne-interdevice yonxibelelwano evumela ukuba izibonelelo ezahlukeneyo ze-DSP zisebenze ngokufanelekileyo nangokungenamthungo.Okuphambili kolu lwakhiwo zizinto eziphambili ezifana ne-Multicore Navigator evumela ulawulo olululo lwedatha phakathi kwezixhobo ezahlukeneyo zesixhobo.I-TeraNet lilaphu lokutshintsha elingathinteliyo elivumela ukuhamba kwedatha yangaphakathi ngokukhawuleza kunye nokungaxabanisi.Isilawuli sememori ekwabelwana ngaso nge-multicore sivumela ukufikelela kwimemori ekwabelwanayo kunye nangaphandle ngokuthe ngqo ngaphandle komzobo ukusuka kumthamo welaphu lokutshintsha.Ukusetyenziswa kwe-fixed-point, i-core C66x ine-4 × i-multiply accumulate (MAC) ikhono le-C64x + cores.Ukongeza, i-C66x engundoqo idibanisa amandla okudada okudadayo kunye ne-per-core ekrwada yokusebenza kwekhompyutha yi-40 ye-GMACS ehamba phambili kwi-industry kunye ne-20 GFLOPS kwi-core (@1.25 GHz yokusebenza frequency).Undoqo we-C66x unokuqhuba imisebenzi ye-MAC echanekileyo eyi-8 echanekileyo kumjikelo ngamnye kwaye inokwenza imisebenzi ephindwe kabini kunye nexube ngokuchanekileyo kwaye i-IEEE 754 iyahambelana.Undoqo we-C66x udibanisa imiyalelo emitsha engama-90 (xa kuthelekiswa ne-C64x + core) ekujoliswe kuyo kwi-floating-point kunye ne-vector math oriented process.Ezi zongezo zivelisa ukuphuculwa kokusebenza okunobungakanani kwiinkozo ze-DSP ezidumileyo ezisetyenziswa ekusetyenzweni komqondiso, kwimathematika, kunye nemisebenzi yokufumana imifanekiso.Undoqo we-C66x yikhowudi yangasemva-iyahambelana nesizukulwana sangaphambili se-TI i-C6000 esisigxina kunye neendawo ezidadayo ze-DSP, iqinisekisa ukuphatheka kwesoftware kunye nemijikelo yophuhliso lwesoftware efinyeziweyo yosetyenziso olufudukela kwihardware ekhawulezayo.I-C665x DSP idibanisa inani elikhulu lememori ye-chip.Ukongeza kwi-32KB yenkqubo ye-L1 kunye ne-cache yedatha, i-1024KB yememori enikezelweyo inokuqwalaselwa njenge-RAM emephu okanye i-cache.Isixhobo sikwadibanisa i-1024KB ye-Multicore Shared Memory enokusetyenziswa njenge-L2 SRAM ekwabelwana ngayo kunye / okanye i-L3 SRAM ekwabelwana ngayo.Zonke iinkumbulo ze-L2 zibandakanya ukufunyanwa kwempazamo kunye nokulungiswa kweempazamo.Ukufikelela ngokukhawuleza kwimemori yangaphandle, esi sixhobo sibandakanya i-32-bit DDR-3 ujongano lwememori yangaphandle (EMIF) esebenza kwisantya se-1333 MHz kwaye inenkxaso ye-ECC DRAM.