What is the difference betwen standards and protocols ?

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sivamit

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standards and protocols

What is the difference b/w a standard(e.g RS232) and a protocol(e.g SPI) ?
 

Re: standards and protocols

Hi,
I think, Protocol refers to a sequence of operation and Standard gives the specification of the system. So, a standard may or may not contain a protocol.
Regards,
Laktronics
 

Re: standards and protocols

sivamit,
laktronics is correct. For example, the RS232 spec defines voltage levels for 1s and 0s (referred to as "space" and "mark") for the Rx (Receive) and Tx (Transmit) lines. It also defines levels for various control signals, such as CTS, RTS, etc. It also defines a connector and pin assignments. However it does not mention how these signals should be used (the protocol). On the other hand, the Firewire (IEEE1394) spec defines both the electrical specs and the protocol.
Regards,
Kral
 

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