Patent ID: 6792481
Filing Date: 2004-09-14
Classification: G06F

Abstract:
A communications system, comprising:a first-in, first-out (FIFO) buffer having a plurality of entries for temporarily storing a plurality of data signals received at an input at a predetermined sample rate, and the FIFO buffer having an output for providing the plurality of data signals, the FIFO being in a data transmission path; a counter coupled to the FIFO buffer; and a direct memory access control state machine, coupled to the FIFO buffer and to the counter, for detecting when the data transmission path is blocked, and in response, enabling the counter to store a count value corresponding to a number of data samples that are blocked from being received by the FIFO buffer, wherein when data transmission resumes through the data transmission path, the stored count value is used to maintain a sampling time correlation of the plurality of data signals.