| 摘要 |
PROBLEM TO BE SOLVED: To shorten an access period in configuration of connecting accessed parts from an access control part through a serial bus.SOLUTION: The access control part 1 specifies sequence data and non-sequence data and specifies an access destination from the serial bus 3 to carry out data transmission. The accessed parts 5, 7 are connected in series to the serial bus 3 so that the non-sequence data and sequence data are accessed. Each of the accessed parts 5, 7 has first and second memory spaces 11, 13, an arbitration part 15 and an access space 17. The first memory space 11 is connected to the serial bus 3 and stores the non-sequence data. The second memory space 13 is connected to the serial bus 3 and stores the sequence data. The arbitration part 15 arbitrates the non-sequence data and sequence data. The access space 17 receives access of the non-sequence data and sequence data from the arbitration part 15. |
