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AgnosTVR (DF72) is a specific 30 byte long bitmap used to trace framework's behavour. It provides a way to get internal information from the kernels:

  • TVR: some kernels require to reset TVR to 0x00 at the end of the EMV processing. AgnosTVR mirrors this tag so that it's always possible to get that standard EMV bitmap

  • ODA: ODA is a complex multi-step cryptographic EMV processing that may lead to many different issues. AgnosTVR traces all possible error outcomes

  • Contactless kernels: each kernel implements a specific processing and supports a different level signals. AgnosTVR provides a specific bitmap when specifications suffer from a lake of errors management

  • Contact kernel: the TVR is the main dashboard used to analyse EMV events occurrences during a transaction. AgnosTVR provides additional traces

To get the exact AgnosTVR bitmap, go to ACE and click on the left side of the tag’s value from Transaction Management page.

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