MSP432P411VIPZ datasheet(133/212 Pages) TI1

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MSP432P4111, MSP432P4011, MSP432P411Y

MSP432P401Y, MSP432P411V, MSP432P401V

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SLASEA0A – DECEMBER 2017 – REVISED FEBRUARY 2018

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Product Folder Links: MSP432P4111 MSP432P4011 MSP432P411Y MSP432P401Y MSP432P411V MSP432P401V

Detailed Description

6.8.1.4

Soft Reset

The soft reset resets only the execution component of the system, which is the nondebug logic in the

Cortex-M4 and the WDT_A. This reset remains nonintrusive to all other peripherals and system

components. MSP432P4x1x devices support up to 16 sources of soft reset. Table 6-42 lists the reset

source allocation. The Reset Controller registers can be used to identify the source of reset in the design.

For further details, see the Reset Controller chapter in the MSP432P4xx SimpleLink™ Microcontrollers

Technical Reference Manual.

(1)

The WDT_A generated resets can be mapped either as a hard reset or a soft reset.

(2)

Reserved indicates that this source of soft reset is currently unused and left for future expansion.

Table 6-42. MSP432P4x1x Soft Reset Sources

RESET SOURCE

NUMBER

SOURCE

CPU LOCKUP condition (LOCKUP output of Cortex-M4)

WDT_A time-out (1)

WDT_A password violation (1)

Reserved (2)

NOTE

To support and enhance debug of reset conditions, the Reset Controller is located on the

PPB of the device. This allows the Reset Controller to remain accessible even if the device is

stuck in a hard or soft reset state. The Reset Controller permits overrides for hard and soft

resets, thereby allowing an application to regain control of the device and isolate the cause

of the stuck reset.

6.8.2

Power Supply System (PSS)

The PSS controls all the power supply related functionality of the device. The PSS consists of the

components in the following sections.

6.8.2.1

VCCDET

The VCCDET monitors the input voltage applied at the DVCC and AVCC pins of the device. When the

VCC is found to be below the operating range of the VCCDET trip points, it generates a brownout

condition, thereby initiating a device reset (POR class reset).

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