| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital switching system of a low-cost circuit configuration without using a high-speed memory. SOLUTION: There are provided an address counter which generates a slot switch address, an input frame memory where an input channel data is stored in a write address of the input frame memory in reception order and the data of read address of the input frame memory is read out, a data selector which selects one of the input data according to one input selection signal with all input frame memory outputs as input, an output frame memory where the data selector output is stored in the writing address of the output frame memory under write instruction and the data read in slot order is outputted to an output channel, and a slot switch control memory where, with the slot switch address as input, the read address corresponding to the slot switch address, the write address, the input selection signal, and the write instruction are outputted using a specified control table. |
