| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multilayer system with lower electric consumption and a clock controlling method for the multilayer system. <P>SOLUTION: The multilayer system executes starting of the other secondary masters 1 by means of one primary master 1 such as a CPU or the like, in which clock signals are always supplied from a clock generator 4. The primary master 1 outputs a starting signal starting the secondary master 1 to the secondary master 1 via a slave 3 correlated with the secondary master 1. The secondary master 1 starts up in response to the starting signal, and outputs a clock request signal requesting supply of a clock signal to the secondary master 1 to the clock generator 4. The clock generator 4 supplies the clock signal to secondary master 1 in response to the clock requesting signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
