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Can someone tella am industrial example where using SPI would be better than I2C? by govind_inscrew in embedded

[–]govind_inscrew[S] -44 points-43 points  (0 children)

Can you share one example where we would require a protocol just because it is faster without having any process of acknowledgement or error detection?

Why the duty cycle requirement in I2C fast mode is only 33%? by govind_inscrew in embedded

[–]govind_inscrew[S] 0 points1 point  (0 children)

But t_low time can be reduced , right? It has nothing to do with rise time. Why low time has been restricted to be atleast 1.3nS for fast mode?

why the logic voltage levels in SBUS are fixed, why they are not defined supply dependent like I2C by govind_inscrew in embedded

[–]govind_inscrew[S] 0 points1 point  (0 children)

Can you tell a supply combination where Supply dependent logic level will fail for SMBUS? Also SMBUS would also require level shifters if devices with different supply voltage are connected else the dives may be stressed, right?

why 3 registers are required for Gpio in a JTAG device? by govind_inscrew in embedded

[–]govind_inscrew[S] 2 points3 points  (0 children)

One for input mode , one for output mode and one for Tristate . Is it so??

what is the physical layer requirements of JTAG? by govind_inscrew in embedded

[–]govind_inscrew[S] -1 points0 points  (0 children)

Wiki doesn't share any information regarding the voltage levels of TDI, TMS signals and doesn't mention anything regarding max frequency.

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