DEVICE FOR GENERATING CLOCK OF MULTI-COMPUTER SYSTEM

摘要

PURPOSE: A device for generating a clock of a multi-computer system is provided to easily synchronize computers in case that more than two computers are operated by connecting with each other. CONSTITUTION: An oscillator(200) generates an internal clock. An external clock input part(210) receives/transfers a predetermined number of external input clocks transferred from other computers included in the multi-computer system. A selection controller(220) selects one clock from the internal and the external clocks by the connection network information, the failure information, and an ID number of the multi-computer system. A multiplexer(230) selects/outputs one clock from the internal and the external clocks by a selection code generated from the selection controller. A PLL(Phase Locked Loop)(240) distributes the internal and the external clocks by synchronizing the internal and the external clocks with the clock output from the multiplexer. An external clock output part(250) outputs the external output clocks distributed from the PLL to other computers.