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EVTI pin on a MPC5668G BGA 208

Question asked by Hugo Bouchard on Dec 3, 2015
Latest reply on Dec 22, 2015 by Lukas Zadrapa

Hi,

 

We have a BGA 208 which does not have the nexus trace pins. It however has the EVTI and EVTO pins (PC2 and PC3). What is the purpose of those pins?

 

We have a weird problem with the PC2 pin (EVTI -> Nexus event in). We use it as a digital input. When our in circuit debugger is connected (IC5500) and this pin is driven to a low state by the external component, the pin is at 0V as expected. However, when it is driven to a high state, we read 0.6 V with an oscilloscope. The pin is working fine when the debugger is not connected. Does anyone as an idea why this happens?

 

Thanks,

Hugo

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