TLF35584 and Aurix uc

[User22192]

Hello,

I have following situation
- from Aurix I send the shutdown sequence to TLF.
- before sending this command the SCR code runs and checks the P00_IN and P01_IN (the control is explicit hand over to SCR(P33_PCSR) before the TLF command)
- the SCR detects for a short period of time that P00_IN and P01_IN are 0xFF even if the HW lines are low.(I tried different cfg of _PDISC, _ PDRx, _IOCR register of SCR but with same result)

Additional info: when TLF enters shutdown, only Qst supply remain active which is connected to VEVRSB pin of uc.

Does anybody knows if this is a normal behavior(P00_IN and P01_IN show 0xFF for a short period of time while Aurix supply is cut of by TLF)

Thanks!

[MoD · Accepted solution]

This behavior is know, please see errata sheet Functional Deviation SCR_TC.014.

[User22192]

Thanks. Is the behavior also valid for the usage of an TLF chip? Meaning that the AURIX is not sent into standby, but instead TLF cuts off the supplies of AURIX?

[MoD]

When TLF cuts off the supplies of AURIX then the AURIX is sent into standby, therefore the behavior is valid.