| 摘要 |
PURPOSE:To improve affinity with software and to simplify an additional circuit by inserting an adder to the data line of a channel control memory and setting the correspondence of channel data and the channel memory to an additional value. CONSTITUTION:The additional value of the adder 4 inserted into the data line 6 of the channel control memory 2 is the highway and the time slot of channel data and an address on the channel memory 1. With calculating the address and adding it to channel exchange information given from software, the adder 4 takes correspondence between the highway and the time slot of channel data and the address on the channel memory 1. Consequently, software can directly designate a highway number and a time slot number as channel exchange information to the data bus of the channel control memory 2. Thus, an effect can be obtained in the generation of software and debug, and circuit constitution can be simplified.
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