Pci Idsel Definition; Table 7-7 Idsel And Interrupt Mapping For Pci Devices - SMART Embedded Computing MVME3100 Installation And Use Manual

7.11

PCI IDSEL 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 buses on the board, along with the corresponding
interrupt assignment to the PIC external interrupt pins. Refer to the MPC8540 Reference
Manual and PCI6520CB Data Book and for details on generating configuration cycles on
each of the PCI busses.
Table 7-7
PCI Bus
A
(8540) (See
Note following
table)
B
(PCI6520-1)
C
(PCI6520-2)
MVME3100 Single Board Computer Installation and Use (6806800M28H)
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_0100 20
0b0_0000 16
0b0_0001 17
0b0_0010 18
0b0_0011 19
0b0_0000 16
0b0_0100 20
PCI Device
Device/Slot INT to MPC8540 Ext IRQ
or Slot
INTA#
MPC8540
TSi148 VME IRQ0
PCI6520-1
PCI6520-2
Sil3124A
IRQ2
sATA
PMC1
IRQ4
Primary
PMC1
IRQ5
Secondary
PMC2
IRQ6
Primary
PMC2
IRQ7
Secondary
uPD740101
IRQ4
USB
21150 on
PMCSpan
PCI IDSEL Definition
INTB# INTC# INTD#
IRQ1 IRQ2 IRQ3
IRQ5 IRQ6 IRQ7
IRQ6 IRQ7 IRQ4
IRQ7 IRQ4 IRQ5
IRQ4 IRQ5 IRQ6
IRQ5 IRQ6
133