Intel E3815 FH8065301567411 Data Sheet

Product codes
FH8065301567411
Page of 5308
 
Thermal Management
Intel
®
 Atom™ Processor E3800 Product Family
Datasheet
109
Note:
DTS encoding of 127 always represents T
J-MAX
.If T
J-MAX
 is at 110
o
C instead of 90
o
then the encoding 127 from DTS indicates 110
o
C, 137 indicates 90
O
C and so forth. 
Thermal trip points are of two types:
Hard Trip: The Catastrophic trip points generated by DTS’s based on predefined 
temperature setting defined in fuses.
Programmable Trips: four programmable trip settings (Hot, Aux2, Aux1, Aux0) 
that can be set by firmware/software. Default value for Hot Trip is from Fuses.
Note:
DTS accuracy is around 8
o
C under 60
o
C and around 6
o
C above 60
o
C.
8.3
SoC Programmable Trips
Programmable trips can be programmed to cause different actions when triggered to 
reduce temperature of the die.
8.3.1
Aux3 Trip
By default, the Aux 3 (Hot Trip) point is set by fuses but the software/firmware has an 
option to set these to a different value.
This trip point is enabled by firmware to monitor and control the system temperature 
while the rest of the system is being set up.
8.3.2
Aux2, Aux1, Aux0 Trip
These are fully programmable trip points for general hardware protection mechanisms. 
The programmable trips are only active after software/firmware enables the trip. 
Note:
Unlike Aux3, the Aux[2:0] trip registers are defaulted to zero. To prevent spurious 
results, software/firmware should program the trip values prior to enabling the trip 
point.
177
40
ο
C
187
30
ο
C
197
20
ο
C
207
10
ο
C
Table 62. Temperature Reading Based on DTS (If T
J-MAX
 =90
ο
C) (Sheet 2 of 2)
DTS Counter Value
Temperature Reading