Read and write data aligner and method

Details Read and write data aligner and method Read and write data aligner and method

1993-08-27

1996-05-14

Harvey, Jack B.

H01J 1300

Patent

active

055176275

ABSTRACT:
A data aligner transfers data from an input having N+1 byte lanes to an output having N+1 byte lanes. The data aligner includes a write data aligner and a read data aligner. The write data aligner includes a write shifter coupled to the N input byte lanes and a stage having N selector/registers S1(i). The N selector/registers each have a queuing register R(i) and bypass multiplexer M(i). The N selector/registers are coupled to the N output byte lanes. The write shifter and N selector/registers S1(i) are coupled to a control circuit. The read data aligner includes a stage having N selector/registers S2(i) and a read shifter. The S2(i) selector/registers are coupled to N+1 byte input lanes with the S2(i) outputs coupled to the N read shifter inputs. The read shifter outputs are then coupled to the N+1 output byte lanes. Finally, a control circuit is coupled to the selector/registers S2(i) and read shifter.

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