1. An Overview CS341 Digital Logic and Computer Organization F2003

2. What is this?

3. PowerPC G5 Processor

4. G5 Chip Features (taken from an adversement in Newsweek World’s first 64-bit processor for PCs. 12-inch Silicon wafer VLSI technology (500 processing steps) 58 million transistors Conducting path less than 1/800th the width of human hair 1 GHz bus Breaks the 4 GB memory space (4 billion times) Supports 200 in-flight instructions at a time

5. Topics Definitions –digital –digital system –logic design –computer –computer design Digital vs. analog computers Data/information representation –numeric: binary and other number systems –non-numeric: ASCII, EBCIDIC, and Unicode Functional units of a generic computer

6. Description of a VLSI digital system Description of a digital system –Behavioral domain –Structural domain –Physical domain Levels of abstractions in each of the domains –Architectural level (CS441) –RTL, logic level (CS341) –Circuit level IEEE standardized HDL (Hardware Description Language) –VHDL (1987, 1993): VHSIC (Very High Speed Integrated Circuit) HDL –Verilog (1996)

7. Design parameters Performance: speed, power, function, flexibility Size (cost) of the die Time to design (impact cost) Time to market (impact profit) Ease of test

8. Structured design strategies Top-down divide-and-conque: divide a module into sub-modules. Bottom-up: assemble primitive functional units (sub-modules or modules) to perform more complex functions Use of CAD/CAE tools in all stages of design and simulation.

9. Voltage ranges for binary signals

10. Major advantages of digital over analog systems Cost (VLSI technology) Flexibility (programable) Dependability and durability Security (coded)

11. Major hardware components or function units of a digital computer

12. Powers of two

13. Numbers with different bases

14. Binary-coded decimals

16. ASCII continued

17. First 256 codes for 16-bit Unicode