Questions tagged [architecture]

As used in EE.SE, it describes the physical topology and techniques of routing power, ground, data and control lines across a given area. This could be a CPU/MPU, circuit board or the lighting of LED's around a pool. Electrical parameters and physical (object) constraints ultimately decide the most efficient and safe layout. The term 'architecture' has no scale (size) until it is defined by schematics, diagrams, blue prints.

Filter by
Sorted by
Tagged with
8
votes
4answers
12k views

What are the properties of an N-bit microcontroller?

I've heard of 8 bit microcontrollers and 16-bit microcontrollers. I've even heard about 7 bit microcontrollers and 1 bit microcontrollers. What are the general attributes of these groups? How do I ...
95
votes
10answers
29k views

Why are there no 256-bit or 512-bit microprocessors?

In an 8-bit microprocessor its data bus consists of 8 data lines. In a 16-bit microprocessor its data bus consists of 16 data lines and so on. Why is there neither a 256-bit microprocessor nor a 512-...
43
votes
5answers
28k views

Why does more transistors = more processing power?

According to Wikipedia, processing power is strongly linked with Moore's law: http://en.wikipedia.org/wiki/Moore's_law The number of transistors that can be placed inexpensively on an ...
37
votes
5answers
15k views

How do I design my very own ARM based processors?

I have several questions about how I would design my own ARM-based CPU? How does one start with an ARM license and end up with a package ready to be soldered on to a board? What do I get from ARM (I ...
20
votes
4answers
44k views

What are different types of computer architectures?

I am going through the book "Elements of computing systems". This book teaches how to build a whole computer from scratch. While I was just browsing the chapters on computer architecture, I noticed ...
33
votes
1answer
2k views

What's the purpose of this checkerboard pattern?

This gigabit Ethernet NIC has a checkerboard pattern out of copper etched on the PCB: Each square is electrically isolated. What's the point of adding these? I guess that the PCB isn't filled with a ...
7
votes
3answers
1k views

What actually happens when we set direction on GPIOs in controllers ?

Generally, while working on GPIO pins of any controller/device, we set the directions for the GPIO pins. Let's say in LPC2148(ARM7 core) controller, we have IODIR to configure the direction of Pin. We ...
2
votes
2answers
512 views

Looking for a open-source ALU

I am looking for a open ALU to compute several equations like these: y1 = e^((constant1 - x)^2/(2*x)) y2 = constant2/y1 y3 = y2*constant3 + x*constant4 Where x ...
1
vote
3answers
913 views

Resources to learn about the AVR/RISC architecture

I think I have used enough of the AVR series by atmel to say that I understand how to use it. I know somethings about how it actually works, but I would like to know more. Are there any good resources ...
3
votes
2answers
629 views

Efficient spike detecting Microprocessor or DSP architecture

I am looking for microcontroller or DSP (or its architectures) which are efficient in terms of power as well as performance in detecting spikes. I want to run an algorithm which detects spikes and ...