Application-specific integrated circuit (asic) for use in communication facilities of a digital network

Abstract From the Canadian patent

The invention relates to an application-specific integrated circuit (ASIC) (1) for use in communication facilities of a digital network in which a data signal to be transmitted is composed of frames. To improve such an integrated circuit (1) in such a manner that external testing devices for testing the performance of the integrated circuit (1) can be dispensed with the, invention proposes to provide the integrated circuit (1) with a circuit (4) for executing the ASIC functions and with a data test circuit (3) having first means (5) for generating a framed test signal (6) and second means (7) for detecting bit errors in a received test signal (8).