
2.17 Temperature
The T2080 has a thermal diode attached to the die, allowing direct temperature
measurement. These pins are connected to an ADT7481 3 channel thermal monitor. One
channel monitors the T2080 and another channel monitors the C29x, which allows direct
reading of the temperature of the die and is accurate to ±1 °C. The third channel of the
ADT7481 measures the ambient (board) temperature.
The ADT7481 temperature warning and alarm signals are connected to the CPLD for
monitoring. CPLD uses these signals to adjust CPU FAN speed and protect the CPU
from over-temperature failure.
I
2
C Bus
T2080
TEMP_ANODE
Thermal sensor
ADT7481
DXP1
DXN1
TEMP_CATHODE
DXP2
DXN2
THERM
ALERT/THERM2
OVER ALARM
THERM ALARM
CPLD
PWM
FAN_Power
TEMP_CATHODE
TEMP_ANODE
C29x
Figure 2-17. Temperature
Chapter 2 Architecture
QorIQ T2080 Reference Design Board (T2080RDB-PC) User Guide, Rev. 0, 04/2016
Freescale Semiconductor, Inc.
33
Содержание T2080RDB-PC
Страница 1: ...QorIQ T2080 Reference Design Board T2080RDB PC User Guide Document Number T2080RDBPCUG Rev 0 04 2016...
Страница 2: ...QorIQ T2080 Reference Design Board T2080RDB PC User Guide Rev 0 04 2016 2 Freescale Semiconductor Inc...
Страница 46: ...QorIQ T2080 Reference Design Board T2080RDB PC User Guide Rev 0 04 2016 46 Freescale Semiconductor Inc...