PCF2131 datasheet(25/31 Pages) NXP

25 / 31 page

NXP Semiconductors

UM11597

PCF2131-ARD evaluation board

The next tab is

Alarm. The interface of this tab is shown in Figure 18. From here the

alarm corresponding registers can be managed. See the PCF2131 datasheet to see

more details regarding the alarm function and register map of the DUT IC. Note that

for each command / button the register address is displayed on the interface, so that

the user can easily identify the register function in the register map, described in the

PCF2131 datasheet.

Figure 18. Graphical interface – “Alarm” tab activated

The following tabs are listed below:

• Timestamp: Figure 19. See the datasheet for more details regarding timestamp

functions of PCF2131 RTC.

• Watchdog Timer: Figure 20. See the datasheet for more details regarding watchdog

timer.

• Interrupt Mask: Figure 21. On the upper blue region, right side, two indicators are

monitoring in real-time the state of the INTA / INTB interrupts of the DUT IC. Note that,

checking all boxes means the interrupts are fully masked, INTA / INTB are not active.

• PWR/BATT: Figure 22. See the datasheet for more details regarding power

management of the PCF2131 RTC.

UM11597

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User manual

Rev. 1.0 — 15 September 2021

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PCF2131 Datasheet(PDF) 25 Page - NXP Semiconductors