Interface circuit for multiplexing multiple serial data...

Details Interface circuit for multiplexing multiple serial data... Interface circuit for multiplexing multiple serial data...

2005-01-04

2005-01-04

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Serial to parallel

C341S101000

Reexamination Certificate

active

06839008

ABSTRACT:
A serial stream interface for combining a master serial data stream comprising a sequence of N-bit master data packets and a slave serial data stream comprising a sequence of N-bit slave data packets. The serial stream interface comprises: 1) a slave input interface comprising a slave buffer having a serial input for receiving the slave serial data stream and an N-bit slave parallel output for outputting each of the N-bit slave data packets wherein the slave buffer stores each N-bit slave data packet using at least one slave timing signal associated with the slave serial data stream; 2) a source selection circuit having a first input channel for receiving an N-bit master parallel output from a first master data source and a second input channel coupled to the N-bit slave parallel output; and 3) a serialization circuit having an input coupled to an output of the source selection circuit for receiving a selected one of the N-bit master parallel output and the N-bit slave parallel output and a serial output, wherein the serialization circuit sequentially shifts out each bit of the selected one of the N-bit master parallel output and the N-bit slave parallel output.

REFERENCES:
patent: 4728930 (1988-03-01), Grote et al.
patent: 5005151 (1991-04-01), Kurkowski
patent: 5144305 (1992-09-01), Gotz et al.
patent: 5321399 (1994-06-01), Notani et al.

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