Theseus Research, Inc.
Escape the Box
About TRI Technology Downloads Home
Theseus Research : Technical Papers : NULL Convention Logic™ Page 24 of 26
Looking back to the circuit in Figure 30, we see that the last rank of full adder gates are also hysteresis gates that maintain their state between wave fronts just like the asynchronous register gates. Since the wave front state is maintained by the adder gates there is really no need for a separate rank of gates just to maintain state (i.e., a separate asynchronous register). We can connect the acknowledge line directly to the last rank of processing gates and integrate the asynchronous registration function directly into the combinational circuit as shown in Figure 32.

With both input meanings and the acknowledge control signal going into the last rank of gates their threshold must now be 4.

Figure 32

Figure 32. Ripple carry adder with embedded asynchronous register.

NULL Convention Logic expresses data processing and control identically and indeed the expressional distinction between the two domains disappears. NULL Convention Logic is a uniform, consistent and general language for the expression of asynchronous circuits and systems. NCL delivers on the promises of asynchronous design where the traditional Boolean logic based approaches have failed to deliver.

<< Page 23 <<

download as .pdf

>> Page 25 >>

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

On-Site Training and Seminars
We offer training and seminars on logically determined system design tailored to your needs. Send us an e-mail today!

Theseus Warp License Available
You can now purchase a license to use the Theseus Warp Algorithm in your products! Contact us via e-mail today.

.: About TRI : Company Information | Our Founders | Contact TRI :.
.: Technology : Logically Determined System Design | LDSD Book Materials | Null Convention Logic
Completeness Technical Paper
| NCL Technical Paper | Theseus Warp Algorithm
Theseus Warp Algorithm Technical Paper
| Comparing Technology | Size Transforms
Perspective Transforms
| Dynamic Artifacting :.
.: Downloads : Downloads :.
.: Home : Home | Site Map :.
© 1985-2004 Theseus Research, Inc.
All Rights Reserved. All content on this website is protected.
Please contact our webmaster with any issues regarding this website.