| 摘要 |
A certain memory area in a slave board is assigned as control register so that a master board can control a slave board by accessing the assigned memory area. The controller includes a control register (20) for relaying data between a master and a slave board, a master address decoder (10) for accessing the control register according to a signal transmitted from a master board, a slave address decoder (30) for accessing the control register according to a signal transmitted from a slave board, and a slave board controller (80) for controlling a slave board according to data transmitted from a master board.
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