Cache components-microprocessor, Assembly Language

Assignment Help:

Cache components

The cache sub-system may be divided into 3 functional blocks: Tag RAM, SRAM and theCache Controller. In real designs, these blocks can be implemented  by multiple chips or all can be combined into a single chip.

SRAM :

SRAM (Static Random Access Memory) is memory block which holds the data and the size of the SRAdetermines the size of the cache.

Tag RAM :

Tag RAM (TRAM)  is a small part of SRAM that stores the addresses  of the data that is stored in theSRAM.

Cache controller :

The cache controller is the mind of the cache. Its responsibilities include: performing the  snarfs and snoops, updating the  TRAM  and SRAM and implementing  the write policy.  Also the cache controller is responsible fordetermining if memory request is cacheable  and if a request is a cache miss or hit. The cache controller detects cache misses and controls receiving andsending the cells. This device also controls interface. The cache controller have a status register, which may be read by the processor. The  bits of the status register can be used to signal to the processor.

The cache controller accepts commands from the processor. Following are the examplesof the commands are

  • Reset the Tag Rams
  • Set interrupt mask

 

The cache controller will send a cell to request a cache line when a miss occurs. This cell can also flush an existing dirty line. It  is expecting cell to be returned containing the data, and the CPU is stalled till such a cell is received.

 


Related Discussions:- Cache components-microprocessor

MIPS Assembly, Need help with 2 homework assignments

Need help with 2 homework assignments

Merge Sort, Write a program to merge two sorted arrays to create a third so...

Write a program to merge two sorted arrays to create a third sorted array containing all values from the two original arrays. Merge is a key component to the mergesort algorithm.

Scas-string manipulation instruction-microprocessor, SCAS : Scan String By...

SCAS : Scan String Byte or String Word:- This instruction scans a string of words or byte for an operand word or byte specified in the register AL or  register AX. The string i

Lab Assignment, 1) Write an 80x86 assembly language program in EXE file for...

1) Write an 80x86 assembly language program in EXE file format to do the following tasks: a) Open and read the contents of a file into memory (use at least 1 kB). b) Sort the li

Machine level programs-microprocessor, Machine Level Programs In this s...

Machine Level Programs In this section, a few machine levels programming instance, rather then, instruction sequences are presented for comparing the 8086 programming with that

Implemented with an arm assembly language program, The problem to be solved...

The problem to be solved and implemented with an ARM assembly language program You are asked to do some image processing on an image composed of characters shaped in For exa

General terms for cache-microprocessor, General terms for Cache : Cac...

General terms for Cache : Cache Hits : When the cache consisted the information requested, the transaction is said to be a cache hit. Cache Miss : When the cache does n

4 bit 2s complement multiplier, How to design 4 bit signed 2s complement m...

How to design 4 bit signed 2s complement multiplier?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd