Intel C2518 FH8065501516710 Data Sheet

Product codes
FH8065501516710
Page of 746
Intel
®
 Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
145
Volume 2—Thermal Management—C2000 Product Family
Signal Descriptions
8.2
Signal Descriptions
The signal description table has the following headings:
• Signal Name: The signal/pin name 
• Direction: The buffer direction is either input, output, or I/O (bi-directional)
• Type: The buffer type
• Description: A brief explanation of the signal function
See 
 for details of these signals.
Table 8-2.
Signals Mentioned in This Chapter
Signal Name
Direction and 
Type
Description
I/O
Open-Drain
Processor Hot: 
Active low. As an output, the signal is asserted if any 
SoC thermal sensor indicates the component is hot. As an input, the 
platform board External Circuitry (EC) chooses to drive this signal low 
to reduce SoC current consumption if the EC detects overheating.The 
platform board must ignore this SoC output signal while 
PMU_PLTRST_B (active-low SoC output) is asserted.
Input
Memory Hot:
 Active-low input signal from the platform board 
indicating a memory-overheating condition. When this signal is active, 
the SoC performs memory throttling in an attempt to cool the memory 
devices.The platform board must ignore this SoC output signal while 
PMU_PLTRST_B (active-low SoC output) is asserted.
Output
Catastrophic Thermal Trip:
 Active-low output signal indicating the 
SoC has reached an operating temperature that may damage the 
component. See 
additional details on THERMTRIP_N.
I/O
Open-Drain
SMBus Clock (SMBCLK):
 For PECI over SMBus interface with the BMC 
or other platform board External Circuitry.
This signal is muxed and is used by other functions.
I/O
Open-Drain
SMBus Data (SMBDAT):
 For PECI over SMBus interface with the BMC 
or other platform board external circuitry.
This signal is muxed and is used by other functions.