Patent ID: 7003419
Filing Date: 2006-02-21
Classification: G01R

Abstract:
1. A testing card for coupling to a card interface installed in an electronic device to test functions of the card interface, wherein the card interface complies with an interface specification, the testing card comprising: a converting circuit for receiving, converting and outputting an attribute control signal, a common memory signal and an I/O signal fed in from the card interface; a latch circuit for receiving a data signal fed in from the card interface, latching the data signal and having data signal outputted afterwards; a data processor, coupled to the converting circuit and the latch circuit, for proceeding with testing; a signal generator to for outputting a mode selection signal and an interrupt signal to the card interface, and to generate and output an enable signal according to a control signal fed in from the card interface; an oscillation combination circuit, which is coupled to the signal generator and is used to generate a wait signal according to the enable signal and feed the wait signal into the card interface; and a reset circuit, which is coupled to the latch circuit, the data processor, the signal generator and the oscillation combination circuit and is used to reset the above latch circuit, the data processor, the signal generator and the oscillation combination circuit. wherein the data processor performs an I/O addressing mode test according to the I/O signal, the data signal and the mode selection signal; wherein the data processor performs an attribute addressing mode test according to the attribute control signal; wherein the data processor performs a memory addressing mode test according to the common memory signal and the data signal; wherein the data processor performs a wait test according to the wait signal; and wherein the data processor performs an interrupt test according to the interrupt signal.