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

Claim 0:
1. 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;
a particular set of switch circuits configured to couple, when enabled, one or more of the first set of receive pins to a corresponding one or more of the first set of transmit pins; and
a particular test circuit configured to enable, based on a particular mapping that is associated with a first test mode, a first subset of switch circuits of the particular set of switch circuits, coupling a first subset of the first set of receive pins to a first subset of the first set of transmit pins;
wherein the first subset of switch circuits is further configured to route a test packet, received via the first subset of receive pins, to the first subset of transmit pins, the routing bypassing the particular test circuit; and
wherein the particular test circuit is further configured to enable, based on a different mapping determined based on a second test mode, a second subset of switch circuits of the particular set of switch circuits, coupling a second subset of the first set of receive pins to a second subset of the first set of transmit pins.