Dma Channels; Sources Of Reset - Motorola MVME2400 Series Installation And Use Manual

Programming Details
INTA# INTB# INTC# INTD#
4
IRQ9 IRQ10 IRQ11 IRQ12

DMA Channels

Sources of Reset

4-8
The MVME240x routes the interrupts from the PMCs and PCI expansion
slots as follows:
PMC Slot 1
INTA# INTB# INTC# INTD#
Hawk MPIC
The PIB supports seven DMA channels. They are not functional on the
MVME240x.
The MVME240x has eight potential sources of reset:
1. Power-on reset
2. switch (resets the VMEbus when the MVME240x is system
RST
controller)
3. Watchdog timer Reset function controlled by the SGS-Thomson
MK48T59 TIMEKEEPER device (resets the VMEbus when the
MVME240x is system controller)
∗
4. function controlled by the Port 92 register in the PIB
ALT_RST
(resets the VMEbus when the MVME240x is system controller)
5. PCI/ISA I/O Reset function controlled by the Clock Divisor register
in the PIB
6. The VMEbus
SYSRESET
PMC Slot 2
INTA# INTB# INTC# INTD#
∗
signal
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PCIX Slot