ADLINK Hurricane-QM57 - Manual (Page 48)

TME-EPIC-HURQM-R2V9 Revision 2.9 Page 42 of 74
3.14
LPC Bus
The PCH implements an LPC (Low Pin Count) interface, which is supported via this connector.
LPC Connector (X4)
Connector Type: DF13 12 pin header 1.25 mm
Caution
The maximum current on the supply pin is 0.3A!
3.15
LEMT functions
The onboard Microcontroller implements power sequencing and LEMT (LiPPERT Enhanced Management
Technology) functionality. The microcontroller communicates via the System Management Bus with the
CPU/Chipset. The following general LEMT functions are implemented:
 Total operating hours counter
Counts the number of hours the module has been run in minutes.
 On-time minutes counter
Counts the seconds since last system start.
 Temperature monitoring of CPU and Board temperature
Minimum and maximum temperature values of CPU and board are stored in flash.
 Power cycles counter
Pin Signal
1 +3V3
2 LPC_AD0
3 LPC_AD1
4 LPC_AD2
5 LPC_AD3
6 n.c.
7 LPC_FRAME#
8 PCI_RST#
9 CLK_33_FWH
10 GND
11 INT_SERIRQ
12 LPC_DRQ#