Erik Jonsson School of Engineering and Computer Science

FEARLESS Engineering www.utdallas.edu/~pervin

EE/CE 2310 – HON/002

Introduction to Digital Systems

http://www.utdallas.edu/~pervin

Thursday: (P) Chapter 12, (T) 13-7

Tuesday 4-24-12

(T) 12 Microcomputer Memory

RAMROMPROMEPROM

Bulk Storage

Hard Disk Drives

5400 RPM, 7200 RPM, 9600 RPM

Suppose we had 12000 RPM (Hot and Noisy)

12000/60 = 2000 RMS = 2 RPmS = 0.002 RPμS = 0.000002 RPnS

Thus

1 revolution in 1/2000 S = ½ mS = 500 μS = 500000 nS

And so average wait time just for rotation is:

250,000 nS

(T)13.7 Programmable Logic Array (PLA)

See pp. 326ff

(P) 11.1 Pipelining

(P) 11.2 Delayed Branches

(P) 11.3 Caches

(P) 11.4 Delayed Loads

(P) *9.6 Fixed-point Numbers

This will not be on the final exam but it wouldn’t hurt to know about it!

FINAL: 8:00am 5/10