Steve Church

MC9S08RE16 - i/o port values in stop mode

Discussion created by Steve Church on Jul 25, 2007
Latest reply on Jul 25, 2007 by David Payne
I want to put a MC9S08RE16 into stop mode 2 or 3 and wish to keep the i/o ports in their pre stop state (they enable some power supplies that I want retained). The manual says the i/o states are unchanged in stop3 mode. In stop2 mode it says they are latched. What exactly does this mean? I can't use stop1 as this turns the i/o lines off (low) which will turn off my external regulators. From what I can see stop2 and stop3 are similar in that they retain the i/o state and only differ in how the uP comes out of stop mode. Is this correct?


Alban Edit: FSL Part Number must figure in Message Subject line.

Message Edited by Alban on 2007-07-25 12:51 PM