What are different ways synchronize between two clock domain, Computer Engineering

Assignment Help:

What are the different ways synchronize between two clock domains?

The following section describes clock domain interfacing one of the biggest challenges of system-on-chip (SOC) designs is which different blocks operate onto independent clocks.

Integrating these blocks through the processor bus, peripheral busses, memory ports and other interfaces can be troublesome since unpredictable behavior can result while the asynchronous interfaces are not appropriately synchronized. A very general and robust method for synchronizing multiple data signals is a handshake technique as demonstrated in diagram below. It is popular since the handshake technique can easily manage changes in clock frequencies, whereas minimizing latency at the crossing. Nonetheless, handshake logic is considerably more complex than standard synchronization structures.

2144_Synchronize between two clock domains.png

FSM1 (Transmitter) asserts the req (request) signal, asking the receiver to accept the data onto the data bus. FSM2 (Receiver) usually a slow module asserts the ack (acknowledge) signal, signifying which this has accepted the data. This has loop holes: while system Receiver samples the systems Transmitter req line and Transmitter samples system Receiver ack line, they have completed this regarding their internal clock, therefore there will be setup and hold time violation. To ignore this we go for double or triple stage synchronizers that increase the MTBF and therefore are immune to metastability to a fine extent. The figure below demonstrates how this is done.

2200_handshake technique.png

Multi- Bulit Sync

409_handshaking technique.png

Single Bit Metastability Sync


Related Discussions:- What are different ways synchronize between two clock domain

Differentiate between programming tools and authoring tools, Diffrentiate p...

Diffrentiate programming tools and authoring tools Distinction between programming tools and authoring tools is not at first obvious. Though, authoring tools require less techn

Conclusion - artificial intelligence , Conclusion - artificial intelligence...

Conclusion - artificial intelligence : If we can determine what the exactly state of the world will be after an agent's action, so we can say the environment is deterministic.

Explain simple network management protocol, Explain SNMP (simple network ma...

Explain SNMP (simple network management protocol). Once SNMP is used the management station sends a request to an agent asking this for commanding or information this to update

What is the difference between a structure and a table, What is the differe...

What is the difference between a structure and a table? Structures are constructed the almost the similar way as tables, the only dissimilarity using that no database table is

Explain crossbar exchange with all call processing steps, Explain crossbar ...

Explain crossbar exchange, with all call processing steps and diagrams. The fundamental idea of crossbar switching is to give a matrix of n x m sets of contacts with only n + m

What is parallel computing, Parallel computing has been a topic of interes...

Parallel computing has been a topic of interest in computing society over the previous few decades. Ever-growing amount of databases and increasing complexity of new problems are

Memory management unit, A computer system with 16K of memory, a Memory Mana...

A computer system with 16K of memory, a Memory Management Unit with a page size of 2000, and the following page translation table :      Logical Address    Physical Start 0000

Temporary location, Compare zero-, one, two-, and three- address machines b...

Compare zero-, one, two-, and three- address machines by writing programs to compute                         X = (A + B x C)/(D - E x F) for every of the four machines.  Do n

What is bank interleaving, Interleaved memory is a method for compensating ...

Interleaved memory is a method for compensating the relatively slow speed of DRAM. The CPU can access alternative sections instantly without waiting for memory to be cached. Multip

Multi-layer network architectures, Multi-Layer Network Architectures - Arti...

Multi-Layer Network Architectures - Artificial intelligence: Perceptrons have restricted scope in the type of concepts they may learn - they may just learn linearly separable f

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