First post, by superfury
What happens when a device would be requesting an IRQ(e.g. slave) and it's not selected? What then happens when it's selected after having a IRQ request ready?
Would it cache the IR line for the slave when the master is selected, raising it when the slave is selected? Or does it keep having the same voltage? Does switching from raised master to raised slave lower the IR line when switching over(selecting the other device)?