User Manual

Page 49
ICE Module
as a pair. It is not permitted to combine REQ and GNT lines with a different index. A
PCI REQ/GNT pair can only be used once for a single PCI bus-master device.
Table 4-9: PCI Slot Routing Table
Slot1 Slot2 Slot3 Slot4
IDSEL PCI_AD[20] PCI_AD[21] PCI_AD[22] PCI_AD[23]
INTA# PCI_IRQ[A]# PCI_IRQ[B]# PCI_IRQ[C]# PCI_IRQ[D]#
INTB# PCI_IRQ[B]# PCI_IRQ[C]# PCI_IRQ[D]# PCI_IRQ[A]#
INTC# PCI_IRQ[C]# PCI_IRQ[D]# PCI_IRQ[A]# PCI_IRQ[B]#
INTD# PCI_IRQ[D]# PCI_IRQ[A]# PCI_IRQ[B]# PCI_IRQ[C]#
Figure 4-15: PCI Slot Routing Example