Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (January 2015) - Manual (Page 116)

Maps and Registers
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54H) 116
The following table list interrupt resources.
Table 6-1 Interrupt Source Signals List
Source Signal Description
IPMC NMI_N This is a FPGA register bit written by IPMC through
SPI bus to request a NMI interrupt to PCH. This
register bit can connect to GPIO3 of PCH to cause a
PCH NMI interrupt.
Thermal event VR12_0_HOT_N
VR12_1_HOT_N
CPU0_DIMMS_HOT_N
...... These thermal signals can be arranged into FPGA
register. And when one signal is asserted and is not
masked, it can cause an interrupt to IPMC or PCH.
This feature can be reserved, and some devices
thermal management maybe through acquire
mode to read its thermal information, such as LM75.
Handle switch HDL_SW This signal route to IPMC interrupt to process board
insertion or removing event.
SoL I2C SoL_ALERT_N SoL message interrupt to IPMC.
PCIE devices MSI PCIE endpoint devices such as 82599, I350 use MSI
in-band interrupt mode.