All Questions
Tagged with computer-architecture ram
12 questions
3
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3
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522
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For DDR4 and DDR5, is tCCD_l timing to be obeyed for accesses in a single row as well?
So I have been trying to learn about DDR4 and DDR5 memories, and it seems that the Column-to-Column delay values (in clock cycles) are different depending on whether consecutive accesses are inter-...
- 343
0
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0
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359
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Computer architecture: Count of RAM, ROM and I/O interface addressing
I am trying to work through this question and I appreciate any help or hint. Thank you
Problem:
A computer system uses RAM chips of size 512x8 and ROM chips of size 256x8. The computer system needs 4k ...
- 101
1
vote
1
answer
588
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Where is the RAM stored on a RISC-V CPU? [closed]
Does RISC-V have any opinion on whether the RAM is stored on the same chip as the CPU (like on ARM devices) or on a separate chip somewhere on the motherboard (like on an x86 desktop)? I assume that ...
- 125
1
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2
answers
468
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What does the 8086 CPU do with the data returned from an address in RAM?
I understand how a CPU works fairly well, but there is this one thing which I've never really gotten the hang of.
Say we have an Intel 8086 CPU (16 bits wide registers) which is about to fetch its ...
- 35
0
votes
1
answer
487
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Cache comparator usage
Referring to the photo below, in direct-mapping cache design, why we need a comparator to compare between the tag in the address and the tag in the cache?
Isn't a valid bit enough?
- 498
3
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3
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5k
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Does Registers and RAM are same kind of memory?
Recently, I found out a YT channel of a man who build a 8-bit computer and explain how.
In his video on the registers, he uses a D flip-flop, and in his other video on the ram, I understood that he ...
- 187
1
vote
1
answer
198
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Interfacing RAM to a DIY computer
I am a relatively newbie to electronics but hopefully this question is not very non sensical:
I am following a guide to build a 8 bit computer. The guide requires a RAM which has a 4 address bit and ...
- 141
0
votes
1
answer
898
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How to relate memory address to physical components in RAM?
I am trying to understand how are the micro-scale components arranged to relay address information to the Operating system software.
What are the components that make up the ram which actually ...
- 11
1
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1
answer
342
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How do you store A or B in a RAM of a CPU datapath?
I have an assignment to make a CPU, but am confused with how f_left and f_right are going to be used. I think they are to store ...
- 201
0
votes
3
answers
164
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How is 'specific' data found and taken from a Semiconductor Memory Source?
In a semiconductor memory chip, each bit of binary data is stored in a tiny circuit called a memory cell consisting of one to several transistors. Volatile type.
Suppose an application stored its ...
2
votes
2
answers
5k
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Differences, uses, and theory of volatile and nonvolatile memory?
I understand the basics of volatile and nonvolatile memory. Volatile memory requires a constant power supply to retain data whereas non-volatile memory does not require a constant power supply to ...
- 459
1
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2
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589
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What is the reason of RAM modules conflicts in terms of computer architecture?
What is the reason of such conflicts?
I read a book "Computer architecture" by Andrew Tanenbaum, but didn't understand the reasons may cause conflicts with memory with different timings, frequencies.
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