Interrupt Type Codes

4.4.8Adapter Check Interrupt. Int_type = 110b and Int_Vec ≠ 00h

An adapter check interrupt occurs when ThunderLAN enters an unrecover- able state and must be reset. This unrecoverable condition occurs when ThunderLAN does not agree with the parameters given to it by the driver or when it does not agree with the external hardware. On an adapter check, the driver:

-Disables interrupts

-Reads the adapter check code from the CH_PARM register

-Clears any Tx queued transmissions. In an adapter check, ThunderLAN is not on the network wire.

-Reads the statistics registers, since these are lost when ThunderLAN is reset

-Performs a software reset by asserting the Ad_Rst bit in the HOST_CMD register

-Exits the routine but does not acknowledge, since reset clears the interrupt

The adapter check error status is readable from the CH_PARM register loca- tion whenever an adapter check interrupt is indicated. The status includes fields to indicate the type of error and its source.

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Texas Instruments TNETE100A, TNETE211, TNETE110A manual Adapter Check Interrupt. Inttype = 110b and IntVec ≠ 00h
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TNETE110A, TNETE211, TNETE100A specifications

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