Computer Engineering 1502 Advanced Digital Design Professor Donald Chiarulli Computer Science Dept Sennott Square

Course Assistants and Resources Jason Bakos – TA Office – 5426 Sennott Square Sam Dickerson –TA Office – 271-I Benedum Hall Web online forum – see Course web page

Goals of this course  Learn tools and techniques of modern digital design for large scale digital systems  Complement your Computer Architecture Course (CoE 1541) with actual design experience for the processor covered in that course.  PREREQUISITE – CoE 0501  CO-REQUISITE – CoE 1541 Pre/Co requisites are non-negotiable

Things to do today 1.Choose a lab partner (carefully) 2.Read carefully, sign and return a copy of the course syllabus 3.Add your name and address to the electronic class roster via the course web page. Next class 1.Set up your account, make sure the tools work properly 2.Each student will have a home directory, and your group will have a shared directory (greek letters). Verify that you have proper access to this directory. 3.Proceed with the tools tutorial, make sure that you do the library setup part on both accounts.

What’s expected of you Most of the work in this class is divided into a series of units that will be combined into your first processor design A unit will begin with a lecture (approx 1 hour) at the beginning of class You will have one or two weeks to complete the unit depending on the complexity Units will be checked individually by myself or the TA -- demonstrations are required to receive credit for a unit Units not checked on the due date will be considered late with credit deducted Units more than one week late will receive no credit (but you will still have to do them)

Grading Two projects plus final exam Project 1 – due at Midterm (approx 33%) complete multicycle CPU with interrupt controller graded as average of four units completed in group of two Project 2 – due at end of term, usually on day of final (approx 33%) complete pipeline CPU with primary cache controller graded as four units (CPU/cache/CPU testbench/cache testbench) project group of four students Final Exam – Practical exam (approx 33%) Design exam given in class Must complete small design project in 2 hours Completed individually

Units in Project 1 ALU: design, verification and synthesis CPU: Multi-cycle implementation of base instruction set Exception handler: 1 external interrupt, 3 internal traps Memory bus controller: interface to RAM on Wildfire FPGA board Synthesis: Synthesis and test on Wildfire FPGA board

Project 2 Structured to emulate industrial design experience Work as project team of 4 students Two students assigned as principle designers Two students responsible of test and verification Instructor or TA acts as project leader

Final Exam This is a design class, the final exam will test how effectively you have learned to tools and techniques of digital design You will be given the specification for a small device that you should be familiar with either from experiences in this or other classes You will be given two hours to implement this device using the software tools you have used in the course Grading will be based on completeness, functionality and quality of the design that you produce Since this is the only individual grade you will receive in this class, it will weigh heavily in the computation of your course grade

Software Tools HDL Designer Suite - Mentor Graphics Inc FGPA Advantage - Design Entry Tool ModelSim - Simulator Xilinx - Design Synthesis FPGA place and Route tools

Design Flow FPGA Advantage VHDL Place and Route FPGA Hardware ModelSim Design EntryVerification Xilinx Logic Synthesis Logic Analyzer

Hardware platform: Field Programmable Gate Arrays Xilinx Virtex VP100 FPGA 99K+ logic cells 16MB x 64bit Ram 64 bit channel logic analyzer interface PCI bus host interface logic “ Wildfire” reconfigurable processing card

FPGA Structure

Target CPU Architecture MIPS R2000* organization** 32 x 32bit Register file Integer ALU Control Unit Data Cache Inst. Cache Memory Interface 3 address architecture load/store machine 32 x 32bit register file three instruction formats full version of the processor used in H+P text. Intruction set reference on class web page * modified version for this class. ** Floating Point registers and ALU not shown