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LS1046A
I2C bus
TD1_ANODE
TD1_CATHODE
IRQ03
IRQ04
Temperature sensor
(ADT7461)
TEMP_DIODE_P
TEMP_DIODE_N
THERM_WARN_B
THERM_FAULT_B
Figure 19. Thermal management system
The table below describes the temperature sensor. The I2C address can be used for remotely accessing the temperature sensor.
Table 16. Temperature sensor
Part identifier
Part number
I2C bus
I2C address
Operating voltage
U35
ADT7461
I2C1
0x4C
3.3 V
2.16 DIP switches
The LS1046ARDB has three 8-pin dual inline package (DIP) switches, SW3, SW4, and SW5, which help to perform some most
common board configuration tasks. For LS1046ARDB DIP switches:
• "ON" setting corresponds to 1
• "OFF" setting corresponds to 0
The table below describes the DIP switch settings.
DIP switches
QorIQ LS1046A Reference Design Board Reference Manual, Rev. 2, 30 May 2019
NXP Semiconductors
37