Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
353
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
H
O
TT
EST_D
IE_TEMP
_REA
DING
U
N
US
ED_T
SK
IN_W
ARNING
_TH
R
ESH
O
LD
TS
KI
N
_
TE
M
P_
S
TA
TU
S1
UNUS
ED_PMICRO
_
ICC
_
MA
X
UNU
S
ED_T
SK
IN
_T
EMP_ST
A
T
US
UNUS
ED_TSKIN_S
PA
RE
U
N
USE
D
_T
SKIN_W
ARNING
CPU
_
PO
WE
R
U
N
USE
D
_T
SKIN_VIOLA
TION
Bit
Range
Default &
Access
Field Name (ID): Description
31:24
0h
RW
HOTTEST_DIE_TEMP_READING:
Stores the hottest DTS sample of all thermal
sensors in the CPU+SOC.
23:16
0h
RW
UNUSED_TSKIN_WARNING_THRESHOLD:
THIS FIELD IS UNUSED IN VLV/TNG. For
platforms which implement a Tskin temperature sensor, this field can be used to specify
the temperature limit above which TSKIN_WARNING will be set and Turbo operation will
be disabled in the SOC.
15:12
0h
RW
TSKIN_TEMP_STATUS1:
THIS FIELD IS UNUSED IN VLV/TNG. For platforms which
implement a Tskin temperature sensor, this field can be used to report the TSKIN
temperature value for use by Punit firmware.
11
0h
RO
UNUSED_PMICRO_ICC_MAX:
THIS FIELD IS UNUSED IN VLV/TNG. Bit 11 is used
indicate a Vcc Icc max condition. It is driven by the firmware when it gets a SVID update
indicating a icc max hot condition. The firmware drives it back low when the hot
condition is resolved when it gets a SVID update.
10:8
0h
RW
UNUSED_TSKIN_TEMP_STATUS:
THIS FIELD IS UNUSED IN VLV/TNG. For platforms
which implement a Tskin temperature sensor, this field can be used to report the TSKIN
temperature value for use by Punit firmware.
7:3
0h
RW
UNUSED_TSKIN_SPARE:
THIS FIELD IS UNUSED IN VLV/TNG. Spare for future tskin
related controls
2
0h
RW
UNUSED_TSKIN_WARNING:
THIS FIELD IS UNUSED IN VLV/TNG. Early warning flag
for TSKIN to be set by SCU, PUnit or platform driver to take early action to reduce power
consumption...When asserted Punit will disable Turbo range of operation for CPU and
GPU and limit operation to Guaranteed frequency. For systems which provide TSkin
temperature punit may set this bit if Tskin exceeds TSKIN_WARNING_THRESHOLD...0 -
Tskin warning is not triggered..1 - Tskin warning is triggered and CPU/GPU operation
should be limited to Guaranteed frequencies.
1
0h
RW
CPU_POWER:
Reserved.
0
0h
RW
UNUSED_TSKIN_VIOLATION:
THIS FIELD IS UNUSED IN VLV/TNG. This bit can be
set by the SOC or PUnit firmware to indicate that the system thermals are exceeding the
TSkin spec. Setting this bit will trigger any enabled CPU thermal throttling mechanisms
to take effect. Thermal throttling will remain active until this bit is cleared. For systems
which provide TSkin temperature punit may set this bit if Tskin exceeds
TSKIN_THROTTLE_THRESHOLD...0 tskin is not violated..1 trigger thermal throttling
mechanisms to reduce platform temperature..