Single-rotator latent space switch with an embedded controller

摘要

A single rotator successively connects a set of access ports to a set of memory devices and a multi-port controller and connects the set of memory devices and the multi-port controller to the set of access ports. The rotator has a set of inlets and a set of outlets and cyclically connects each inlet to each outlet during a rotation cycle. A set of inlet selectors connecting to the inlets of the rotator and a set of outlet selectors connecting to the outlets of the rotator are coordinated to concurrently connect the access ports to the memory devices and to the master controller through the rotator, and concurrently connect the memory devices and the master controller to the access ports. Each memory device connects to an inlet selector and a corresponding transposed outlet selector.

主权项

1. A latent space switch comprising:
a rotator having N inlets and N outlets, N>2, said rotator cyclically connecting each inlet to each outlet during a rotation cycle spanning N time slots; N ports, each port alternately connecting to a corresponding inlet and a transposed outlet of said corresponding inlet; a set of M memory devices, 1a respective inlet for transferring data to a respective destination port through said rotator; anda transposed outlet of said respective inlet for receiving data from a respective port; and a master controller alternately connecting to:
a set of (N−M) inlets of said N inlets for transferring downstream control signals to said N ports through said rotator; andtransposed outlets of said set of (N−M) inlets for receiving upstream control signals from said N ports through said rotator; wherein said each port is allocated (N−M) upstream control time slots for transferring upstream control messages to said master controller and (N−M) downstream control time slots for receiving downstream control messages from said master controller.