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8 bit processor ?
8 bit processor
main component for processor
ALU 8 bit
decoder
multiplexer
Q1 I have option for decoder
decoder 2 to 4
decoder 3 to 8
which decoder circuit I need for 8 bit processor
Q2 I have option for multiplexer
multiplexer 2 to 1
multiplexer 4 to 1
multiplexer 8 to 1
which multiplexer circuit I need for 8 bit processor
main component for processor
ALU 8 bit
decoder
multiplexer
Q1 I have option for decoder
decoder 2 to 4
decoder 3 to 8
which decoder circuit I need for 8 bit processor
Q2 I have option for multiplexer
multiplexer 2 to 1
multiplexer 4 to 1
multiplexer 8 to 1
which multiplexer circuit I need for 8 bit processor
Comments
6 years ago
AND logic
OR logic
NAND logic
NOR logic
X or logic
X nor logic
addition
subtraction
I am not going to design for specific purpose
specification for 4 bit processor
1)4 bit ALU
2)3:8 decoder
3) 4 bit A register ( data register )
6 years ago
So .... for your knowledge here is a simple 4 to 7 DECODER and driver that only needs four uP pins to drive 7 display lines to present any digit.
It would be a 3 to 7 Decoder if you only needed to display the digits 0 through 7
This IC accepts four binary digits (A,B,C,D) and drives the ubiquitous 7-segment LED or LCD numeric digit.
The 7-seg can display 0,1,2,3,4,5,6,7,8,9,a,b,C,d,E,F all of the 16 digits of 2 /\ 4
Answer 6 years ago
Here is what you ca do with an 8 bit uP
6 years ago
I want to know basic information I am not really going to make I just ask for Information
processor is 8 bit and ALU is 8 bit
then I need decoder
but I don't understand which decoder will be used
I have read types of decoder
decoder 2 to 4
decoder 3 to 8.....etc
Answer 6 years ago
Sorry but I still don't understand what your problem is BUT it sounds like homework. If it is then read up the links below.
http://www.goffart.co.uk/museum/schematics/atom.pd...
is a better link to the circuit I linked to for the Acorn Atom - a full 8 bit computer will all the bits you need.
http://computer.howstuffworks.com/microprocessor1....
http://en.wikipedia.org/wiki/8-bit
http://en.wikipedia.org/wiki/Microprocessor
https://www.instructables.com/id/How-to-Build-an-8-...
http://www.answers.com/Q/What_does_the_word_8_bit_...
http://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&s...
6 years ago
The very nature of your questions suggests that you do not have enough knowledge or skill at this stage to do what your trying to do.
There is no point in building an 8 bit processor, you may as well buy a 6502 or Z8
http://www.computinghistory.org.uk/big/3812/Acorn-...
is the full cct diagram for a 6502 computer (the acorn Atom) including the video interface.
6 years ago
I don't understand the question. WHAT are you trying to do ?