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

What is reflection, What is Reflection?  It extends the benefits of met...

What is Reflection?  It extends the benefits of metadata by permitting developers to inspect and use it at runtime. For example, dynamically verify all the classes contained in

How do you turn off cookies for one page in your site, How do you turn off ...

How do you turn off cookies for one page in your site?  Use the Cookie. Discard Property which Gets or sets the discard flag set by the server. When true, this property initiat

Contain your variable names and definitions, Give your analysis for the fol...

Give your analysis for the following problem statement: You require to write a program that calculates the area and perimeter of a rectangle whose dimensions (Length &width) are gi

What do you mean by supercomputers, Q. What do you mean by Supercomputers? ...

Q. What do you mean by Supercomputers? The upper end of state of art mainframe machine is supercomputers. These are among the fastest machines in terms of processing speed and

Explain passing parameters using pointers, Q. Explain Passing Parameters Us...

Q. Explain Passing Parameters Using Pointers ? This method overcomes the drawback of using variable names directly in procedure. It uses registers to pass procedure pointers to

How to create dlq rules table, DLQ - Dead Letter Queue If an applicati...

DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und

Advantage of wrapping database calls into mts transactions, Advantage of wr...

Advantage of wrapping database calls into MTS transaction If database calls are complete within the context of a transaction, aborting the transaction will undo and changes that

Use verilog function to define the width of a multi-bit port, Can I use a V...

Can I use a Verilog function to define the width of a multi-bit port, wire, or reg type? Width  elements  of  ports,  wire  or  reg  declarations  require  a  constant  in  bot

Arbitrary categorisation - learning decision trees, Arbitrary categorisatio...

Arbitrary categorisation - learning decision trees: Through visualising  a set of boxes with some balls in. There if all the balls were in a single box so this would be nicely

What is computer motherboard, If you open your computers case, the motherbo...

If you open your computers case, the motherboard is the flat, rectangular piece of circuit board to which the whole thing seems to connect to for one reason or one another. It'

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