Emerson MVME2500 Manuel D’Utilisation
Programming Model
MVME2500 Installation and Use (6806800L01H)
117
7.3
Interrupt Controller
The MVME2500 uses the MPC8548E integrated programmable interrupt controller (PIC) to
manage locally generated interrupts. Currently defined external interrupting devices and
interrupt assignments, along with corresponding edge/levels and polarities, are shown in the
following table.
manage locally generated interrupts. Currently defined external interrupting devices and
interrupt assignments, along with corresponding edge/levels and polarities, are shown in the
following table.
Table 7-2 MVME2500 Interrupt List
Interrupt Line
Interrupt Usage
(Schematic)
(Schematic)
Interface to CPU
Description
IRQ0
None
Reserved for VME interrupt
IRQ1
QUART_IRQ1
LBC
RTB Quart Interrupt
IRQ2
QUART_IRQ2
LBC
RTB Quart Interrupt
IRQ3
QUART_IRQ3
LBC
RTB Quart Interrupt
IRQ4
Temperature
Interrupt
Interrupt
I2C
Two onboard Thermal Sensors:
one is for CPU temp and the
other is for board temp
one is for CPU temp and the
other is for board temp
IRQ5
Ethernet 1
Management I2C
Ethernet interrupt is handled by
PHY/ Connected for flexibility
PHY/ Connected for flexibility
IRQ6
Ethernet 3
Management I2C
Ethernet interrupt is handled by
PHY/ Connected for flexibility
PHY/ Connected for flexibility
IRQ7/ GPIO0
Ethernet 2
Management I2C
Ethernet interrupt is handled by
PHY/ Connected for flexibility
PHY/ Connected for flexibility
IRQ8/ GPIO1
RTC (Real Time
Clock)
Clock)
12C
IRQ9/ GPIO2
FPGA Interrupt
LBC
NMI and 3 Tick Timer Interrupts
IRQ10// GPIO3
FPGA Interrupt
LBC
Power Interruption
IRQ11// GPIO4
QUART_IRQ0
LBC
RTB Quart Interrupt