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Overall Project Objective:

Presentation #1: Smart Cart 525. Idongesit Ebong (1-1) Jenna Fu (1-2) Bowei Gai (1-3) Syed Hussain (1-4) Jonathan Lee (1-5) Design Manager : Myron Kwai. Overall Project Objective:

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Overall Project Objective:

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  1. Presentation #1: Smart Cart 525 Idongesit Ebong (1-1)Jenna Fu (1-2)Bowei Gai (1-3)Syed Hussain (1-4)Jonathan Lee (1-5)Design Manager: Myron Kwai Overall Project Objective: Design a chip as part of a system that accommodates the growing demand for radio frequency identification (RFID) technology while creating a quicker, more convenient shopping experience. Stage I: 19 Jan. 2005 Design Proposal

  2. Status • Project chosen • Specifications defined • Verilog obtained/modified • Gate-Level Verilog • Test Benches • Schematic Design • Layout • Simulations

  3. About the Smart Cart 525 Our chip will: • Take in an 8-bit product ID from RFID receiver to find product price from a lookup table • Keep a running total price for items to be purchased (allows for addition/removal of items from cart) • Calculate subtotal, tax, total, and take store coupons into account • Use Rijndael encryption to securely transmit 32 bit store card information to store’s central computer

  4. What exactly is RFID? • RFID tag: Antenna attached to a microchip which contains a unique 32->2048 bit ID code. • Tag listens for radio query and responds with its ID information, no power needed. • Versatility of RFID technology makes this marketable for other purposes as well • Applications: aircraft manufacturing, consumer electronics, baggage tracking in airports • “Virtually every company on Earth will be required to use RFID in one way or another to remain competitive in the global market.”

  5. Why use this chip? • Quicker Shopping, wait free • Secure transactions with AES encryption • Low-cost (counterexample: IBM and Cuesol’s “Shopping Buddy”) • Low power consumption • Easy to maintain, update prices when being recharged at base stations.

  6. Alternative Designs • Neural chip- Implement a chip in the motor cortex of the brain to control motor movements of the prosthetic limbs. • Total workout machine- Optimize workout by keeping track of bodily functions. • JPEG filtering • Blood sugar monitor

  7. Design Decisions • Multiplier, adder: floating point vs. non-floating point • Decided on non-floating point (multiplier will be big enough already—tentatively 16x5) • Encryption: AES vs. DES (and how many bits?) • Decided on 32-bit AES since AES is the new standard • Anything smaller than 32 bits not doable with Rijndael algorithm • Speed vs. power, pipelining • Low power, low speed to save battery power. No pipelining. • Bit width of I/O pins • RFID code (simplified to 8-bit) etc to make our project manageable

  8. Problems & Questions • Unsure about complexity of certain blocks, which held us back from deciding on final specifications • Having trouble finding Verilog code, but making some progress • Encryption: too many algorithms out there, had to narrow down and simplify (reduce number of bits) to fit the scope of this course

  9. Rough Transistor Count • Encryption ~7000 • Multiplier ~4000 • Logic ~2000 • Adder ~500 • SRAM ~5120 • Registers (inputs/outputs) ~1200 • Total ~19,820

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