MD, Entwicklung von Powerpointfolien Institut für Angewandte Mikroelektronik und Datentechnik Fachbereich Elektrotechnik und Informationstechnik, Universität Rostock Carry Select Adder (Phase 5 ) by Petro Bravermann

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design Motivation goal -> Speed why Carry Select -> arguments: advantage timeseving, fast addition disadvantage large, complex wiring

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design Concept Steps Ripple Cyrry vs. Carry Loock Ahaed 150 mhz 580 mhz

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design Optimisation Modify I/O to Core Distance -> (+ 90 Mhz ) Clock Tree Syntesis -> (+ 70 MHz) Placement optimizatin -> (- 40 mhz) Post-routing optimisation -> (- 140 mhz)

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design Power Analyzer Core activity Wire core density

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design List of all Values Value Name of design Best frequency :740MHz CSA with CLA Best area: 20385µm²CSA with CLA Best µWCSA with CLA Best PDP 352,71(23,84)fJCSA with CLA Name of designer: Carry Select Adder with Carry Loock Ahead Name of Design max. delay [ns] max. frequency f max [MHz] Power f max [µW] PDP [fJ] Core-Area [µm²] Power Dissipat 50 MHz [µW] Carry Select (CSA) , , ,66

Institute of Applied Microelectronics and Computer Engineering College of Computer Science and Electrical Engineering, University of Rostock Spezielle Anwendungen des VLSI-Entwurfs Special applications of VLSI design Thank You Very Much !