XIO2001: /GRST reset pulse width

Motoyasu Hattori

Genius 11265 points

Part Number: XIO2001

Hi,
My customer asks the following. Could you please answer it?

How long Low-level pulse width [ns] or [ms] need to enable the /GRST(global reset)?

Thanks and best regards,
M.HATTORI

over 4 years ago

0 Nasser Mohammadi over 4 years ago

TI__Guru* 93570 points

Greetings Hattori-San,

Please below note reset requirement. GRSTbar can be released after power supplies are stable. It is expected that PERSTbar to be asserted at least 100ms after GRSTbar is de-asserted. This will allow internal register contents to get set to default values.

Regards ,, Nasser

0 Motoyasu Hattori over 4 years ago in reply to Nasser Mohammadi

TI__Genius 11265 points

Hi, Mohammadi-san,
Thank you for your comments.

My customer wants to assert /GRST during operation (Not power-up).
On this case, How long Low-level pulse width [ns] or [ms] are required to enable the global reset? Please advise us.

Thanks and best regards,
M.HATTORI.

0 Nasser Mohammadi over 4 years ago in reply to Motoyasu Hattori

TI__Guru* 93570 points

Greetings,

/GRST or Global Reset is used to reset registers. 5ms should be good enough.

Regards ,,Nasser

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XIO2001: /GRST reset pulse width