Digital Electronics - Microprocessor Fundamentals - Discussion
Discussion Forum : Microprocessor Fundamentals - General Questions (Q.No. 22)
22.
Which bus is a bidirectional bus?
Discussion:
12 comments Page 1 of 2.
Xyz said:
1 decade ago
It is not just data bus. It is address/data bus.
Sukhjinder said:
1 decade ago
XYZ you are wrong. Only data bus is bydirectional because cpu retrieving and writing data on memory or I/O devices. And CPU only generates the address not accept the address.
Christhuraj said:
1 decade ago
Hi, Actually data bus is used to carry data from memory only. So, how it could be bidirectional?
Awesomeak47 said:
1 decade ago
No, @Christhuraj data bus also takes inputs as a data as well as fetches memory hence they are bidirectional.
Atanu Das said:
1 decade ago
Data bus is bidirectional and address bus is unidirectional.
Akash said:
9 years ago
I think Data bus is not a bidirectional bus.
Priya said:
9 years ago
The address bus and data bus are bidirectional buses.
Raj said:
9 years ago
Address bus is Unidirectional because the microprocessor is addressing a specific memory location. No outside devices can not write into Microprocessor.
Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory. Normally Control bus is unidirectional.
Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory. Normally Control bus is unidirectional.
(1)
Bedabati nayak said:
8 years ago
What is the right answer?
Yaswant said:
8 years ago
In 8085 microprocessor, address bus is unidirectional and data bus is bidirectional.
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