LPC1857- Revision changes 'A' vs '-'- Impact on sleep and reset

vivienwong — Wed, 04 Jan 2017 23:54:11 GMT

Hi,

I have 2 LPC1857 chips with different device revision:

1. ESD14440- (initial device revision)

2. ESD16030A (second device revision)

I noticed that there is a different between the 2 device revision whereby when both are put into DeepPowerDown low power mode, the nRESET button would wake the ESD14440- up but not the ESD16030A. My workaround now is to use the event router bit 19 to detect low level of RESET_SETEN to wake the chip up (ESD16030A).

What has changed between the 2 device revisions? Is there an errata to explain the differences between the 2 device revisions?

Re: LPC1857- Revision changes 'A' vs '-'- Impact on sleep and reset

thefallguy — Thu, 05 Jan 2017 09:36:00 GMT

Searching for "LPC1800 errata" will provide the document you are looking for...

LPC MicrocontrollersのトピックRe: LPC1857- Revision changes 'A' vs '-'- Impact on sleep and reset

LPC1857- Revision changes 'A' vs '-'- Impact on sleep and reset

Re: LPC1857- Revision changes 'A' vs '-'- Impact on sleep and reset