Datasheet

TD1_ANODE and TD1_CATHODE signals) to the temperature sensor. Upon detecting thermal problems, the temperature sensor

sends alarm signals (through THERM_WARN_B and THERM_FAULT_B interrupt signals) to the processor. These interrupts can

be used to power down the system to protect the processor from over-temperature damage. The figure below shows thermal

management in the FRWY-LS1046A.



 



LS1046A

I2C bus

TD1_ANODE

TD1_CATHODE

IRQ03

IRQ04

Temperature sensor

(SA56004ED)

TD1_ANODE

TD1_CATHODE

THERM_WARN_B

THERM_FAULT_B

Figure 24. Thermal management

The table below describes the temperature sensor. The I2C address can be used for remotely accessing the temperature sensor.

Table 25. Temperature sensor

Part identifier Part number I2C sub-bus I2C address Operating voltage

U28 SA56004ED I2C1_CH0 0x4C 3.3 V

2.16 DIP switch

The FRWY-LS1046A has a 10-pin dual inline package (DIP) switch, SW1, which helps to perform some most common board

configuration tasks. For SW1:

• "ON" setting corresponds to 1

• "OFF" setting corresponds to 0

The table below describes SW1 settings.

FRWY-LS1046A Functional Description

Layerscape FRWY-LS1046A Board Reference Manual, Rev. 0, 26 April 2019

NXP Semiconductors