Technical Description
miriac MPX-LX2160A User Manual
V1.4
40/73
© MicroSys Electronics GmbH 2020
4.16
Temperature sensors
The LX2160A features two integrated temperature diodes which are connected to
an SA56004 temperature sensor from NXP.
■
I²C clock frequency up to 400 kHz
■
Operating temperature -40°C to 125°C
■
Local temperature monitoring
■
Remote temperature monitoring
■
Two processor interrupts for adjusting 2 temperature thresholds (WARN, CRIT)
■
Address see list in chapter 4.18
Ambient: 0°C / +70°C
Ambient: -40°C / +125°C
Local Temperature
(of the sensor itself)
Max. ± 1°C
Max. ± 2°C
Remote Temperature
(of the CPU internal diode)
Max. ± 1°C
Max. ± 4°C
Figure 4-8 Temperature sensor: accuracy
The temperature sensors provide two interrupts which are connected to the ME
and SoC:
ME
SA56004
Pin
Signal
Pin
Signal
I/O Range
Signal
conditioning
Measured
temperature
22
ALERTn
←
6
ALERT#
3,3V
PU: intern
CPU-Temp 1
6
ALERT#
3,3V
PU: intern
DRAM
6
ALERT#
3,3V
PU: intern
VDD-Core
Regulator
28
SYST_C
RITn
←
4
CRIT#
3,3V
PU: intern
CPU-Temp 1
4
CRIT#
3,3V
PU: intern
DRAM
4
CRIT#
3,3V
PU: intern
VDD-Core
Regulator
Table 4-13 Temperature sensor: IRQs