| 摘要 |
PROBLEM TO BE SOLVED: To enable reduction in circuit cost, power consumption and occupancy space on a printed circuit board. SOLUTION: A computer 202 is connected via a bus 203 to a peripheral device. The peripheral device has a process device part 220 and an I/O device part 206. The I/O device part 206 is arranged on a single microchip and has a physical layer 208 and a data channel processor 210, and the process device part 220 is coupled to the single microchip. The speed of the physical layer 208 and the data channel processor 210 is controlled by a single oscillator 250, and dedicated frequency dividers 212 and 214 are respectively arranged. By the use of interface controllers 218 and 226, the I/O device part 206 and the process device part 220 are connected via a single channel.
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