The PCI BUS has ________ interrupt request lines.
The PCI BUS has ________ interrupt request lines.
Right Answer is:
4
SOLUTION
- The PCI BUS has 4 interrupt request lines.
- By writing into a device configuration register, the software instructs the device as to which of these lines it can use to request an interrupt.
- If a device requires initialization, the initialization code is stored in a ROM in the device interface.
- (This is a different ROM from that used in the configuration process.) The PCI software reads this code and executes it to perform the required initialization.