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Computer Science 324
Computer Architecture
Mount Holyoke College
Fall 2009
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Lecture 09: Memory Parity and Error Correction; Digital Logic Review
Date: Wednesday, October 14, 2009
- Announcements
- No class Friday (since we're meeting now instead) - we'll
next meet on Tuesday to start a new topic and you'll get your
exam.
- Don't forget to check out the LEAP symposium talks.
- Memory lab discussion
- Exam review questions and answers
- Lecture assignment recap
- Lab 2 recap
- Memory parity
- Error correcting memory
Due at the start of class, Tuesday, October 20. (Don't worry, they're
short.)
For these questions consider the error detection and correction scheme
discussed in class. We will discuss these during class, so no late
submissions are accepted.
- What 12-bit value would be stored in memory to represent the
8-bit value 0xAB?
- What 8-bit value is represented by the 12-bit value 0x555?
Was an error detected? If so, in which bit?
- What 8-bit value is represented by the 12-bit value 0x557?
Was an error detected? If so, in which bit?