Pci Local Bus; Interrupt Controller - Motorola MVME2100 Installation And Use Manual

Since the MVME2100 could have as many as seven potential PCI masters
in addition to the processor, an onboard sub-arbiter is provided. The sub-
arbiter is designed to multiplex the PMC slot and three PC•MIP slots onto
one set of the processor's PCI bus request/grant pins.

PCI Local Bus

In addition to the processor, there may be as many as 7 additional PCI
devices located on the local PCI bus. The potential PCI devices on the
board are: one PMC board, one PC•MIP Type I board, two PC•MIP Type
II boards, one DEC21143 Ethernet controller, one PCI-VMEbus bridge,
and one DEC21150 PCI-to-PCI Bridge.

Interrupt Controller

The MVME2100 uses the Embedded Programmable Interrupt Controller
(EPIC) integrated into the processor to manage locally generated
interrupts. The interrupt controller will operate in the serial interrupt mode.
Currently defined external interrupting devices include:
For additional information on the operation of the processor's EPIC, refer
to the MPC8240 User's Manual, listed in Appendix A,
Documentation.
http://www.motorola.com/computer/literature
DEC21143 Ethernet controller
One PC•MIP Type I Expansion slot
Two PC•MIP Type II Expansion slots
Universe II VME-PCI bridge
16550 UART
Watchdog timer
Front panel Abort switch
Four PCI expansion interrupts (INTA* - INTD*)
Functional Description
Related
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