What is the function of address bus in 8085?
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What is the function of address bus in 8085?
Address bus – The microprocessor 8085 can transfer maximum 16 bit address which means it can address 65, 536 different memory location. The Length of the address bus determines the amount of memory a system can address. Such as a system with a 32-bit address bus can address 2^32 memory locations.
What is address bus & data bus of 8085?
Address Bus: It carries the address, which is a unique binary pattern used to identify a memory location or an I/O port. Data Bus: The data bus is used to transfer data between memory and processor or between I/O device and processor.
What is the function of data bus?
A data bus can transfer data to and from the memory of a computer, or into or out of the central processing unit (CPU) that acts as the device’s “engine.” A data bus can also transfer information between two computers.
What is data and address?
Addresses and Data. Two of the most common terms in computer science are address and data. Data is the term used to describe information, and address is the term used to describe the location of an item of information.
Why address and data bus are multiplexed in 8085?
8085: The main reason of multiplexing address and data bus is to reduce the number of pins for address and data and dedicate those pins for other several functions of microprocessor. These multiplexed set of lines used to carry the lower order 8 bit address as well as data bus.
What is the advantage of multiplexing the address bus with data bus in 8085 microprocessor?
How is multiplexing of address and data bus is done in 8085 microprocessor?
The data bus and the low order address bus on the 8085 microprocessor are multiplexed with each other. This allows 8 pins to be used where 16 would normally be required. The hardware interface is required to demultiplex the bus by latching the low order address in the first T cycle, on the falling edge of ALE.
What is the feature of address bus?
Address buses are made up of a collection of wires connecting the CPU with main memory that is used to identify particular locations (addresses) in main memory. The width of the address bus (that is, the number of wires) determines how many unique memory locations can be addressed.
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