| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To output an interrupt signal to a master block from a slave block separated from a system bus. <P>SOLUTION: The synchronous outputting part 40 of the slave block 2 holds an interrupt factor signal INT from a function processing part 20 in synchronization with a bus clock BCK and outputs the interrupt factor signal, as a clock permission signal CKE, to a clock control part 30. When the clock permission signal CKE is given, the clock control part 30 supplies the bus clock BCK, as an internal clock CLK, to a bus interface part 10 and an interrupt outputting part 40 independently of a selection signal SEL to the slave block 2. By this, an interrupt outputting part 40 holds the clock permission signal CKE in synchronization with the internal clock CLK and outputs the clock permission signal CKE, as an interrupt request signal IRQ, to the master block 1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
