July 2011
Intermediate to advanced
225 pages
6h 22m
English
book
Introduction to Digital Systems: Modeling, Synthesis, and Simulation Using VHDL
by Mohammed Ferdjallah
Content preview from Introduction to Digital Systems: Modeling, Synthesis, and Simulation Using VHDLBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
3.7 TRUTH TABLE
A truth table is generally the first design step. The designer begins with a word statement that describes the function of a digital system. Next, he or she identifies the inputs and outputs of the system and draws a truth table. The inputs and outputs may be single bits or a collection of bits. The truth table consists of input and output columns, which characterize the function of the digital circuit. The input columns consist of all possible combinations of inputs. The maximum number of all possible combinations of inputs is 2n, where n is the number of inputs.
Figure 3.2 NAND, NOR, and NXOR Gates
Figure 3.3 Multi-input AND and OR Logic Gates
Figure 3.4 Conversion from Logic Function to Circuit Diagram
Figure 3.5 Precedence Rules for Elementary Logic Function Conversion
Figure 3.6 Conversion from Circuit Diagram to Logic Expression
Consider the truth table in Figure 3.7. The digital circuit described by this truth table has three inputs (single bit) and one output ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.