Texas Instruments Tiva TM4C123GH6PM User Manual

Interrupt Controller (NVIC)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_INTERRUPTTABLE is an array of pointers located at ROM_APITABLE[14].
ROM_IntPendSet is a function pointer located at ROM_INTERRUPTTABLE[8].
Parameters:
ui32Interrupt specifies the interrupt to be pended.
Description:
The specified interrupt is pended in the interrupt controller. This will cause the interrupt con-
troller to execute the corresponding interrupt handler at the next available time, based on the
current interrupt state priorities. For example, if called by a higher priority interrupt handler,
the specified interrupt handler will not be called until after the current interrupt handler has
completed execution. The interrupt must have been enabled for it to be called.
Returns:
None.
13.2.1.8 ROM_IntPriorityGet
Gets the priority of an interrupt.
Prototype:
int32_t
ROM_IntPriorityGet(uint32_t ui32Interrupt)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_INTERRUPTTABLE is an array of pointers located at ROM_APITABLE[14].
ROM_IntPriorityGet is a function pointer located at ROM_INTERRUPTTABLE[7].
Parameters:
ui32Interrupt specifies the interrupt in question.
Description:
This function gets the priority of an interrupt. See ROM_IntPrioritySet() for a definition of the
priority value.
Returns:
Returns the interrupt priority, or -1 if an invalid interrupt was specified.
13.2.1.9 ROM_IntPriorityGroupingGet
Gets the priority grouping of the interrupt controller.
Prototype:
uint32_t
ROM_IntPriorityGroupingGet(void)
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Texas Instruments Tiva TM4C123GH6PM Specifications

General

Core	ARM Cortex-M4F
Clock Speed	80 MHz
Flash Memory	256 KB
SRAM	32 KB
GPIO Pins	43
UART	8
I2C	2
SPI/SSI	4
USB	USB 2.0
Timers	6
Communication Interfaces	UART, I2C, SPI, USB
Operating Temperature	-40°C to 85°C
Package	LQFP64

Summary

Boot Loader

Introduction

Explains the ROM-based boot loader and its interfaces for flash updates.

Serial Interfaces

Details the UART, SSI, and I2C interfaces used by the boot loader.

USB Interface

Describes the USB boot loader functionality using the DFU protocol.

Controller Area Network (CAN)

Flash

GPIO

Hibernation Module

Inter-Integrated Circuit (I2C)

Interrupt Controller (NVIC)

Memory Protection Unit (MPU)

Pulse Width Modulator (PWM)

Synchronous Serial Interface (SSI)

System Control

Timer

UART

uDMA Controller

USB Controller

Using USB with the uDMA Controller

Watchdog Timer

Introduction

Functions

Lists and describes API functions for watchdog timer configuration, interrupts, and lock mechanism.