DEVICE FOR CONTROLLING THE CHANNEL START IN AN INTEGRATED MICROPROGRAMMED DEVICE WITH AT LEAST TWO INDEPENDENT CHANNELS FOR HANDLING INFORMATION AND METHODS FOR THEIR OPERATION.

摘要

1. Device for controlling the channel start of a DMA controller having at least two independent channels for data transfer between data sources and data sinks and a central control unit (CC) which contains a control register (CR), a status register (SR) and a prioritizing unit (PRIO), characterized in that each channel has at its disposal its own microinstruction register (MPIRi; i = 1, 2, ... n), which is connected to a demultiplexer (DEMUX2), via which, given the occurrence of a start request, a microinstruction is entered by the central control unit into the microinstruction register (MPIRi) of the channel to be started.