thank you for your answer, but i haven't seen any reference to BT_NRESET on
Table 2-7 Intel® PXA27x
Processor Signal Descriptions, nor in the intel specifications at all (sp.
chapter 10 UARTs) or in any website
on internet. could you please tell me on which page of the intel
specification you have seen what is gumstix
using this signal for? i could have overlooked it.
i don't find any references to CLK_32 either, i do not know if it's any of
the signals specified on the
Table 2-7 Intel® PXA27x Processor Signal Descriptions under 'Crystal and
Clock Signals'. or is it for a
32.768-kHz input clock for operation in low-power mode as described on
22.4.9? it's called CLK_32K
there and searching for 'CLK_32K gumstix' on google does not give any
results, but it could have been
left open for power management implementation in the future
and regarding USBH_PEN1 and USBH_PWR1 i'm asking how it is implemented on
gumstix, as these
signals are not used on the console board, and there aren't even on the
60pin hirose connector. this could
be because there is no overcurrent protection implemented and USBH_PWR1 is
pulled high directly on
the verdex board, and thats why i'm asking where these signal are going, and
under which circumstances
USBH_PWR1 has or has not to be pulled up
i'm sorry if the questions are too trivial, but i couldn't find the answers
> zyagon wrote:
>> does anyone know..
>> what is USBH_PEN1 for?
>> you have to pull-up to 3.3v USBH_PWR1, but how much current does it draw?
>> (where is it going)
>> what is CLK_32 for?
>> what is BT_NRESET for?
>> i think this is not documented anywhere yet
> If you read the PXA270 developers manual which is posted here among other
> places, http://pubs.gumstix.com/documents/PXA%20Documentation/PXA270/ it
> tells you exactly what they are for.
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