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SLAS826F – MARCH 2015 – REVISED MARCH 2017
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Detailed Description
Copyright © 2015–2017, Texas Instruments Incorporated
Table 6-38. Memory Map Access Response (continued)
ADDRESS RANGE
DESCRIPTION
READ
(1)
WRITE
(1)
INSTRUCTION
FETCH
(1)
(5)
See the Cortex-M4 technical reference manual at
for details of the memory map of the internal PPB.
0x4200_0000–0x43FF_FFFF
Peripheral bit-band alias
OK
(4)
OK
Error
0x4400_0000–0xDFFF_FFFF
Reserved
Error
Error
Error
0xE000_0000–0xE003_FFFF
Internal PPB
(5)
OK
OK
Error
0xE004_0000–0xE004_0FFF
TPIU (External PPB)
OK
OK
Error
0xE004_1000–0xE004_1FFF
Reserved
Reserved
Reserved
Error
0xE004_2000–0xE004_23FF
Reset Controller (External
PPB)
OK
OK
Error
0xE004_2400–0xE004_2FFF
Reserved
Reserved
Reserved
Error
0xE004_3000–0xE004_33FF
SYSCTL (External PPB)
OK
OK
Error
0xE004_3400–0xE004_3FFF
Reserved
Reserved
Reserved
Error
0xE004_4000–0xE004_43FF
SYSCTL (External PPB)
OK
OK
Error
0xE004_4400–0xE00F_EFFF
Reserved
Reserved
Reserved
Error
0xE00F_F000–0xE00F_FFFF
ROM Table (External PPB)
OK
OK
Error
0xE010_0000–0xFFFF_FFFF
Reserved
Error
Error
Error
(1)
This source can also be mapped to the system NMI. See the
MSP432P4xx SimpleLink™ Microcontrollers Technical Reference Manual
for more details.
6.7
Interrupts
The Cortex-M4 processor on MSP432P401x MCUs implements an NVIC with 64 external interrupt lines
and 8 levels of priority. From an application perspective, the interrupt sources at the device level are
divided into two classes, the NMI and the User Interrupts. Internally, the CPU exception model handles the
various exceptions (internal and external events including CPU instruction, memory, and bus fault
conditions) in a fixed and configurable order of priority. For details on the handling of various exception
priorities (including CPU reset and fault models), see the ARM-V7M architecture reference manual at
6.7.1
NMI
The NMI input of the NVIC has the following possible sources:
•
External NMI pin (if configured in NMI mode)
•
Oscillator fault condition
•
Power Supply System (PSS) generated interrupts
•
Power Control Manager (PCM) generated interrupts
6.7.2
Device-Level User Interrupts
lists the various interrupt sources and their connection to the NVIC inputs
NOTE
Some sources may have multiple interrupt conditions, in which case the appropriate interrupt
status/flag register of the source must be examined to differentiate between the generating
conditions.
Table 6-39. NVIC Interrupts
NVIC INTERRUPT INPUT
SOURCE
FLAGS IN SOURCE
INTISR[0]
PSS
(1)
INTISR[1]
CS
(1)