MSP432P401R Datasheet, PDF (83/157 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP432P401R, MSP432P401M
SLAS826B – MARCH 2015 – REVISED FEBRUARY 2016
6.7.1.3 Hard Reset
The Hard Reset resets all modules that are set up or modified by the application. This includes all
peripherals as well as the non debug logic of the Cortex-M4. The MSP432P401x devices support up to 16
sources of Hard Reset. The following table lists the reset source allocation. The Reset Controller registers
can be used to identify the possible source of reset in the device. For further details, refer to Reset
Controller chapter in the MSP432P4xx Family Technical Reference Manual (SLAU356).
Table 6-14. MSP432P401x Hard Reset Sources
RESET SOURCE
NUMBER
SOURCE
0
SYSRESETREQ (System reset output of Cortex-M4)
1
WDT_A Time-out ⁽¹⁾
2
WDT_A Password Violation ⁽¹⁾
3
Flash Controller ⁽²⁾
4
Reserved ⁽³⁾
5
Reserved ⁽³⁾
6
Reserved ⁽³⁾
7
Reserved ⁽³⁾
8
Reserved ⁽³⁾
9
Reserved ⁽³⁾
10
Reserved ⁽³⁾
11
Reserved ⁽³⁾
12
Reserved ⁽³⁾
13
Reserved ⁽³⁾
14
CS ⁽⁴⁾
15
PCM ⁽⁵⁾
(1) The WDT_A generated resets can be mapped either as a Hard Reset or a Soft Reset.
(2) The Flash Controller can generate a reset if a voltage anomaly is detected that can corrupt only flash
reads, and not the rest of the system.
(3) 'Reserved' indicates that this source of Hard Reset is currently unused and left for future expansion.
(4) The CS is technically not a true source of a Hard Reset, but if a Hard Reset occurs during clock
source/frequency changes, it may extend the reset to allow the clocks to settle before releasing the
system. This prevents chances of nondeterministic behavior.
(5) The PCM is technically not a true source of a Hard Reset, but if a Hard Reset causes power mode
changes, it may extend the reset to allow the system to settle before releasing the Reset. This
prevents chances of nondeterministic behavior.
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