Artesyn MVME2502 Installation and Use (April 2015) - Manual (Page 149)

Programming Model
MVME2502 Installation and Use (6806800R96E) 149
7.3 Interrupt Controller
The MVME2502 uses the MPC8548E integrated programmable interrupt controller (PIC) to
manage locally generated interrupts. Currently defined external interrupting devices, interrupt
assignments, along with corresponding edge/levels, and polarities are shown in the following
table.
Table 7-2 MVME2502 Interrupt List
Interrupt Line
Interrupt Usage
(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 I2C Two on-board Thermal Sensors:
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
IRQ6 Ethernet 3 Management I2C Ethernet interrupt is handled by
PHY/ Connected for flexibility
IRQ7/ GPIO0 Ethernet 2 Management I2C Ethernet interrupt is handled by
PHY/ Connected for flexibility
IRQ8/ GPIO1 RTC (Real Time
Clock) 12C DS1337 INT_A
IRQ9/ GPIO2 CPLD Interrupt LBC NMI and 3 Tick Timer Interrupts
IRQ10// GPIO3 CPLD Interrupt LBC Not used
IRQ11// GPIO4 QUART_IRQ0 LBC RTB Quart Interrupt