A method for using a personal computer memory card international association (PCMCIA) controller to communicate with an Integrated Drive Electronics (IDE) drive which includes performing a transfer between the static random access memory (SRAM) controller and the IDE drive using PCMCIA interface signals to communicate with the IDE drive and a general purpose input/output signal to communicate with an interrupt request of the IDE drive.

 
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> Use of a signal line to adjust width and/or frequency of a communication link during system operation

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