Patent ID: 6011801
Filing Date: 2000-01-04
Classification: H04J

Abstract:
A method for transmitting at least one channel of digital data over a time division multiplex bus, where said channel comprises a sequence of data bytes, said bus carries a bit stream comprising sequential digital frames, each of said frames is divided into a plurality of sequential time slots, each of said time slots comprises a sequence of data byte transfer opportunities each of which is interleaved with respective data byte transfer opportunities of the remaining time slots, each of said time slots has the same predetermined bandwidth b.sub.t, the bandwidth of said channel may be other than n times b.sub.t, and n is a positive integer, said method comprising the steps of:assigning said channel to a selected number m of said time slots, where m=n, b.sub.c is the bandwidth of said channel, and the relationship between b.sub.c and b.sub.t is given by the expression (n-1)b.sub.t <b.sub.c .mu.nb.sub.t ;generating a validity identification signal for each data byte transfer opportunity in said selected time slots;transmitting sequential bytes of digital data from said channel over said bus during data byte transfer opportunities in said selected m time slots;transmitting a first digital state as said validity identification signal substantially simultaneously with each data byte from said channel carried during data byte transfer opportunities by said bus in said selected m time slots; andtransmitting a second digital state as said validity identification signal substantially simultaneously with each remaining data byte transfer opportunities in said bus in said selected m time slots.