TST PIN and SIMtrace Schematic question

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Holger Hans Peter Freyther holger at freyther.de
Mon Aug 15 19:04:35 UTC 2011


On 08/15/2011 06:30 PM, Harald Welte wrote:
> Hi Holger,

>>
>> will PA4, PA6 work like a pull down (I am not sure of Table 10-3)?
> 
> All GPIO of the SAM7 have internal pull-up resistors which are enabled
> at boot.  Thus, they should all be in high state.
> 

Ah, it would have been too easy, Page 6 of the SAM7 datasheet confirms that:
"
Pulled-up input at reset
PA0 - PA20 only on AT91SAM7S32/16
"

cheers
	holger




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