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PCI Bus Interface:
PCI Interrupts
Pm8560 User’s Manual
10006609-03
7-6
page 8-9). In order to operate as described in the Processor PMC specification, the software
must read this status to determine if the monarch features of the Pm8560 should be
enabled. If the monarch signal is low, then the software should perform PCI bus enumera-
tion and interrupt handling.
PCI bus enumeration should be performed in the standard manner except that the software
should not perform the enumeration until the PMC_EREADY signal has gone high. The
PMC_EREADY signal is connected to the CPLD and is read through the CPLD PCI Status reg-
ister (page 8-9).
In order to facilitate PCI bus interrupt handling, PMC interrupts A-D have been connected to
IRQ pins 3-6 (see
Table 3-4
). If operating in monarch mode, these pins should be configured
to generate interrupts to the MPC8560.
PCI INTERRUPTS
Interrupt sources are classified as originating from normal device operation or conditions
generated from an exception. Interrupt sources associated with normal device operations
are listed in
Table 7-3
.
Table 7-3:
Interrupt Connections for Pm8560
See page 3-10 for a description of the MPC8560 interrupt handling.
P
MC CONNECTOR PIN ASSIGNMENTS
The Pm8560 has four 64-pin PMC connectors: P11, P12, P13, and P14. These connectors
support the PCI and serial interfaces. The pin arrangement for the 64-pin connector is
shown in
Fig. 7-2
. The manufacturer part number for this connector is Molex 71436-2864.
Refer to
Fig. 2-1
for the placement of these connectors on the Pm8560.
Figure 7-2:
PMC Interface Connectors (P11-P14)
Interrupt:
PMC Connector P11:
MPC8560 ID Select:
INTA
Pin 4
AA19/IRQ6
INTB
Pin 5
Y19/IRQ5
INTC
Pin 6
AA21/IRQ4
INTD
Pin 9
AG24/IRQ3
1
2
63
64
Summary of Contents for Pm8560
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Page 36: ...Setup Troubleshooting Pm8560 User s Manual 10006609 03 2 12 ...
Page 54: ...Serial I O Baud Rate Selection Pm8560 User s Manual 10006609 03 5 4 ...
Page 62: ...TDM Interface Rear Panel I O Connector P14 Pm8560 User s Manual 10006609 03 6 8 ...
Page 72: ...PCI Bus Interface PMC Connector Pin Assignments Pm8560 User s Manual 10006609 03 7 10 ...
Page 112: ...Development Mezzanine Card Troubleshooting Pm8560 User s Manual 10006609 03 10 12 ...
Page 138: ...Monitor Download Formats Pm8560 User s Manual 10006609 03 11 26 ...
Page 144: ...Index continued Pm8560 User s Manual 10006609 03 i 4 ...