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Difference between 8080 and 8085?
The 8085 has a single +5V power supplyThe 8085 has a multiplexed low order address busThe 8085 has extra single pin interrupts, TRAP, RST7.5, RST6.5, and RST5.5The 8085 has serial I/O pins SID and SODThe 8085 has maskable interrupts and the RIM/SIM instructionThe 8085 includes the functionality of the 8224 clock genereator and 8228 system controllerThe 8085 added several 16 bit operations
Explain the need to demultiplex the bus AD7-AD0 in 8085 microprocessor?
The AD0-AD7 lines in an 8085 are multiplexed to reduce the pin count of the IC. Several added features were added to the 8085 from the 8080 design, and Intel did not want to require a larger package.
Is the number of bits in a word the same in every computer?
No, computers have been built with as few as 1 bit in a word to 72 bits in a word and architectures have been proposed with as many as 256 bits in a word.
How do you build 8085 using vhdl?
VHDL is a hardware description language. It describes the functionality of a hardware as a program. If we know the architecture of 8085, the same can be implemented or coded using VHDL.
How many mega bits are in 2.5 giga bits?
Multiply that by 1024 to get 2560 megabits. Note that a bit is not the same thing as a byte. A bit is an eighth of a byte.
How many mb is 238 kb?
MB means million bits and KB means thousand bits. 238 KB would be the same as .238 MB.
How do you find twos compliment of 00h in 8085 program?
You find the two's complement of 00H the same way you find it for any other number. You complement the bits and then you add 1. In the case of 00H, this results in 00H. That is no surprise, because -0 is the same as +0, and two's complement representation was chosen to do just that, as well as to make the physical addition of signed and unsigned numbers to be the same.
Specify the crystal frequency required for an 8085 system to operate at 1.1mhz?
The crystal frquency in an 8085 system is twice the desired clock frequency, so a crystal of 2.2 MHz is required to operate at 1.1 MHz.Note: Clock frequency is not the same as instructions per second, because the instructions in an 8085 take a variable number of clock cycles, between 4 and 18, to execute.
Suppose you want to send 1000 seven-bit characters of data How many total bits will you transmit using asynchronous transmission How many bits total will you transmit using synchronous transmissio?
I have this same question and don't know it, please answer.
What is the purpose of the DCR instruction in 8085?
the contents of the designated register is decremented by 1,and result is placed in the same location.
What is demultiplexing in 8085?
Multiplexing is the process of combining 2 or more signals together into one multi-component signal with all signals being sent to the same receiver or receivers. Demultiplexing is the process of separating the multiplexed signal into its individual component signals. NOTE: The major distinction between multiplexing and multiple access is that in multiple access the signals are coming from many different sources and are going to many different destinations. Multiplexing is used to describe cases in which there is only one source and one destination for the many individual signals. In an 8086, the address and instruction lines use the same wires, and a pin on the CPU toggles between those two uses. That is one of multiple reasons why the 286 was considerably faster. In addition to a faster clock rate and more dedicated hardware for certain instructions, the 286 had separate address lines and instruction lines. The CPU didn't contain circuitry to switch between the signals and could do addressing and instructions at the same time, and the motherboard was somewhat simpler in that the latches and circuitry to sort the two types of information did not have to be as complex.
How the Intel give number to their 8085 and 8086 microprocessor?
Intel named the 8085 after the 8080. The 5 means it runs on a single +5V power supply, as opposed to the 8080 which needed +5V, -5V, and +12V. The predecessors of the 8085 were the 8080, 8008, 4040, and 4004. Intel named the 8086/8088 after the 8085. It was considered the logical continuation of the 8085 family, but as a true 16-bit processor. The 8086 is a 16-bit computer running on a 16-bit bus. The 8088 is the same 16-bit computer, but it runs on an 8-bit bus, and it was the heart of the first IBM PC.
