Pci Idsel And Interrupt Definition - SMART Embedded Computing MVME4100 Programmer's Reference Manual

4.11.1

PCI IDSEL and Interrupt Definition

Each PCI device has an associated address line connected via a resistor to its IDSEL pin
for Configuration Space accesses. The following table shows the IDSEL assignments for
the PCI devices and slots on each of the PCI busses on the board along with the
corresponding interrupt assignment to the PIC external interrupt pins. Refer to the
MPC8548E data sheet and the PLX PCI6520 data sheet for details on generating
configuration cycles on each of the PCI busses.
Table 4-8
PCI Bus
PCI1
(8548E)
PCI1
(PCI6520)
PCI2
(PCI6520)
Refer to the MPC8548E reference manual for additional details about the MPC8548E PIC
operation.
MVME4100 Single Board Computer Programmer's Reference (6806800H19D)
IDSEL and Interrupt Mapping for PCI Devices
Device AD Line
Number for
Field IDSEL
0b0_0000 internal
0b0_0001 17
0b0_0010 18
0b0_0011 19
0b0_0000 20
0b0_0001 21
0b0_0010 22
0b0_0011 23
0b0_0010 20
PCI Device
Device/Slot INT to MPC8548E IRQ
or Slot
INTA#
MPC8548E -
Tsi148 VME IRQ0
PCI6520 -
PCI6520 -
PMC1 IRQ4
Primary
PMC1 IRQ5
Secondary
PMC2 IRQ6
Primary
PMC2 IRQ7
Secondary
uPD720101 IRQ4
USB
Programming Details
INTB# INTC# INTD#
- - -
IRQ1 IRQ2 IRQ3
- - -
- - -
IRQ5 IRQ6 IRQ07
IRQ6 IRQ7 IRQ4
IRQ7 IRQ4 IRQ5
IRQ4 IRQ5 IRQ6
IRQ5 IRQ6 -
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