Technical data

MVME51005E Single Board Computer Installation and Use (6806800A38B)

7 Programming the MVME5100

The MVME5100 routes the interrupts from the PMCs and PCI expansion slots as follows:

DMA Channels

The PIB supports seven DMA channels. They are not functional on the MVME5100.

Sources of Reset

The MVME5100 has nine potential sources of reset:

1. Power-on reset

RST switch (resets the VMEbus when the MVME5100 is system controller)

3. Watchdog timer Reset function controlled by the SGS-Thomson MK48T559

timekeeper device (resets the VMEbus when the MVME5100 is system controller)

4. ALT_RST

∗ function controlled by the Port 92 register in the PIB (resets the VMEbus

when the MVME5100 is system controller)

5. PCI/ISA I/O Reset function controlled by the Clock Divisor register in the PIB

6. The VMEbus SYSRESET

∗ signal

7. VMEbus Reset sources from the Universe ASIC (PCI/VME bus bridge controller): the

System Software reset, Local Software Reset and VME CSR Reset functions.

Note

On the MVME5100, Watchdog Timer 2 is a source of reset only if component R206 is

installed on the board.

Tab l e 7 - 5 shows which devices are affected by the various types of resets. For details on using

resets, refer to the MVME5100-Series Single Board Computer Programmer’s Reference Guide.

Hawk MPIC

PMC Slot 1

INTA#

INTB# INTC#

INTD#

PMC Slot 2

INTA#

INTB# INTC#

INTD#

PCIX Slot

INTA#

INTB# INTC#

INTD#

IRQ9

IRQ10

IRQ11 IRQ12