AM3703: minimal sys_pwronres pulse

Hi,

there is a section in the TRM chapter 3.3.2 that I am doubtful about:

"sys_nrespwron must be kept asserted until the voltage and power domains are ramped up

which depends on the power IC used. At the PRCM boundary, a sys_nrespwron pulse of 1

ns resets the device.

sys_nreswarm assertion is asynchronously sampled in the PRM. It is kept internally

asserted."

1ns seems very short. I would have thought that sys_nrespwron pulse duration is in the order of 32-khz periods. Could someone confirm what the minimal pulse duration is for AM37?

Thanks,

--Gunter