Patent ID: 11940491
Assignee: APPLE INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. An apparatus, comprising:
a particular integrated circuit, included in a particular chip package, including:
a particular interface circuit that includes a first set transmit pins and a first set of receive pins, wherein the first set of transmit pins and the first set of receive pins are coupled to a different integrated circuit via a second set of transmit pins and a second set of receive pins, respectively;
a particular test circuit configured to:
cause the different integrated circuit to couple a particular subset of the second set of receive pins to a particular subset of the second set of transmit pins, wherein a different test circuit in the different integrated circuit is bypassed by the coupling;
send, via a first subset of the first set of transmit pins that are coupled to the second set of receive pins, a particular test packet; and
receive, via a first subset of the first set of receive pins that are coupled to the second set of transmit pins, a routed version of the particular test packet, wherein the first subset of transmit pins and the first subset of receive pins are selected based on a first test mode that is currently active.