Intel i5-2540M FF8062700839209 User Manual
Product codes
FF8062700839209
Datasheet
103
Electrical Specifications
NOTES:
1.
1.
V
AUX-DIFFp-p
= 2*|V
AUXP
– V
AUXM
|. Please refer to the VESA DisplayPort Standard specification for more
details.
2.
COMP resistance must be provided on the system board with 1% resistors. See the applicable platform
design guide for implementation details. COMP resistors are to V
design guide for implementation details. COMP resistors are to V
SS
.
3.
eDP_ICOMPO, eDP_ICOMPI, eDP_RCOMPO are the same resistor.
4.
These are pre-silicon estimates and are subject to change.
7.11
Platform Environmental Control Interface (PECI)
DC Specifications
PECI is an Intel proprietary interface that provides a communication channel between
Intel processors and chipset components to external Adaptive Thermal Monitor devices.
The processor contains a Digital Thermal Sensor (DTS) that reports a relative die
temperature as an offset from Thermal Control Circuit (TCC) activation temperature.
Temperature sensors located throughout the die are implemented as analog-to-digital
converters calibrated at the factory. PECI provides an interface for external devices to
read the DTS temperature for thermal management and fan speed control. More
detailed information may be found in the Platform Environment Control Interface
(PECI) Specification.
7.11.1
DC Characteristics
The PECI interface operates at a nominal voltage set by V
TT
. The set of DC electrical
specifications shown in
is used with devices normally operating from a V
TT
interface supply. V
TT
nominal levels will vary between processor families. All PECI
devices will operate at the V
TT
level determined by the processor installed in the
system. For specific nominal V
TT
levels, refer to
Table 51.
eDP DC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Notes
4
eDP_HPD#
V
IL
Input Low Voltage
-0.3
0.3
V
V
IH
Input High Voltage
0.6
1.155
V
eDP_AUX, eDP_AUX#
V
AUX-DIFFp-p
(Tx)
AUX Peak-to-Peak Voltage at the
transmitting device
transmitting device
0.39
1.38
1
V
AUX-DIFFp-p
(Rx)
AUX Peak-to-Peak Voltage at the
receiving device
receiving device
0.32
1.36
V
1
eDP COMPs
eDP_ICOMPO
Comp Resistance
49.5
50
50.5
Ω
2,3
eDP_ICOMPI
Comp Resistance
49.5
50
50.5
Ω
2,3
eDP_RCOMPO
Comp Resistance
49.5
50
50.5
Ω
2,3
eDP_RBIAS
Comp Resistance
742.5
750
757.5
Ω
2,3