Courses

Get the App

Carry Logic & Rotate Select Notes | EduRev

Digital Electronics

Electrical Engineering (EE) : Carry Logic & Rotate Select Notes | EduRev

The document Carry Logic & Rotate Select Notes | EduRev is a part of the Electrical Engineering (EE) Course Digital Electronics.

All you need of Electrical Engineering (EE) at this link: Electrical Engineering (EE)

Carry Logic and Rotate Select

The carry logic circuit shown in Fig. 5.8.7 prevents the carry flag being set in rotate right mode, as bits rotate from bit 0 and re-enter the shift register at bit 7, therefore allowing correct carry flag operation in both left and right rotate modes.

When the ROTATE input is at logic 1, the Rotate Select circuit in Fig 5.8.7 allows C_OUT from the shift register to be fed back to the shift register C_IN input for continuous bit rotation.

Carry Logic & Rotate Select Notes | EduRev

ALU Operation

Addition

To perform an addition, input data B is added to A. This is achieved by putting logic 1 on the control inputs of multiplexers 1, 2 and 3. This causes data A and B to be applied to the adder inputs. Also, to allow any carry bit from the C_IN input to be included in the addition, the 1 bit carry multiplexer must have logic 0 on its control input. The shift register is only used as a PIPO register in addition mode, so its input lines R/~L and ROTATE must be at logic 0. SHIFT/~LE must also be at logic 0 to enable parallel loading of the shift register, which will hold the result of the addition (A plus B) after the application of a single CK pulse.

Offer running on EduRev: Apply code STAYHOME200 to get INR 200 off on our premium plan EduRev Infinity!

Download EduRev app here for Electrical Engineering (EE) preparation.

Up next

Author

Telecom Tuners

Views

104

Rating

4.9

Description

Carry Logic & Rotate Select Notes | EduRev notes for Electrical Engineering (EE) is made by best teachers who have written some of the best books of Electrical Engineering (EE). It has gotten 104 views and also has 4.9 rating. You can download Free Carry Logic & Rotate Select Notes | EduRev pdf from EduRev by using search above. You can also find Carry Logic & Rotate Select Notes | EduRev ppt and other Electrical Engineering (EE) slides as well. If you want Carry Logic & Rotate Select Notes | EduRev Tests & Videos, you can search for the same too. Electrical Engineering (EE) Carry Logic & Rotate Select Notes | EduRev Summary and Exercise are very important for perfect preparation. You can see some Carry Logic & Rotate Select Notes | EduRev sample questions with examples at the bottom of this page. Complete Carry Logic & Rotate Select Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Electrical Engineering (EE) lecture & lessons summary in the same course for Electrical Engineering (EE) Syllabus. EduRev is like a wikipedia just for education and the Carry Logic & Rotate Select Notes | EduRev images and diagram are even better than Byjus! Do check out the sample questions of Carry Logic & Rotate Select Notes | EduRev for Electrical Engineering (EE), the answers and examples explain the meaning of chapter in the best manner. This is your solution of Carry Logic & Rotate Select Notes | EduRev search giving you solved answers for the same. To Study Carry Logic & Rotate Select Notes | EduRev for Electrical Engineering (EE) this is your one stop solution.

Digital Electronics

92 videos|91 docs|12 tests

Up next

Important questions

ppt

pdf

Viva Questions

mock tests for examination

video lectures

practice quizzes