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Content tagged with Microprocessor
posted in May 2000
The 68K Rides Again
News & Analysis  
5/19/2000   Post a comment
"I hate to keep talking about the 68K, but but the 68K was a classy architecture," says DSPnet site director Ray Weiss. Choices made by the 68K design team are still viable, even with today's higher silicon densities and fast clock speeds.
21st Century Processor Standards
News & Analysis  
5/19/2000   Post a comment
The 68K was the quintessential 32-bit processor standard. It dominated its arena for almost 20 years. Many engineers cut their design teeth on the 68K, where designing a 68K memory system was a test of engineering manhood and ladyhood.
In-System Programmable Flash Memory for 8051 Class Microcontrollers
Design How-To  
5/12/2000   Post a comment
Flash memory allows you to create a system that accepts software upgrades in the field. If you want to use the popular 8051 architecture, however, you have a problem. It can't write to program space, so you can't update software directly. Mark Rootz of WSI provides instructions on what you can do to bypass this limitation.


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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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