Digital Electronics - Microprocessor Fundamentals - Discussion
Discussion Forum : Microprocessor Fundamentals - General Questions (Q.No. 12)
12.
What type of circuit is used at the interface point of an output port?
Discussion:
15 comments Page 1 of 2.
Raveena said:
10 years ago
Tristate buffer is commonly used to interface input devices and Latch is used to interface output device.
(1)
Dev said:
1 decade ago
Please explain this. Anybody.
Sujata said:
1 decade ago
A feedback loop in a symmetrical digital
circuit, such as a flip-flop, used to maintain a
given state is known as latch but at interface point of o/p port there should b decoder.is it true ?
circuit, such as a flip-flop, used to maintain a
given state is known as latch but at interface point of o/p port there should b decoder.is it true ?
Pankhuri said:
1 decade ago
As in decoding the data/address bus latch is used may be similarly here it is used.
Santhosh said:
1 decade ago
Decorder with bus latch operation such data for corresponding address can be differentiated.
Pankaj said:
1 decade ago
Please explain this.
Bharat said:
1 decade ago
For output latch is used and for inputs buffer is used at interface point.
Abinash said:
1 decade ago
As latch stores the result by refreshing itself & is transparent while changing the result (o/p) , latch is used @ o/p section.
Sandie said:
1 decade ago
A microprocessor needs its output head to blink 0 or 1 and more importantly, previous values should not affect the present output value.
Meanwhile, A latch has no feedback;
So Latch is used.
Please correct me if I'm wrong.
Meanwhile, A latch has no feedback;
So Latch is used.
Please correct me if I'm wrong.
Nirupama said:
1 decade ago
Latches can be memory devices, and can store one bit of data for as long as the device is powered. As the name suggests, latches are used to "latch onto" information and hold in place. Latches are very similar to flip-flops, but are not synchronous devices, and do not operate on clock edges as flip-flops do.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers