Texas Instruments Tiva TM4C123GH6PM User Manual

uDMA Controller
void ROM_uDMADisable (void)
void ROM_uDMAEnable (void)
void ROM_uDMAErrorStatusClear (void)
uint32_t ROM_uDMAErrorStatusGet (void)
void ROM_uDMAIntClear (uint32_t ui32ChanMask)
uint32_t ROM_uDMAIntStatus (void)
23.2.1 Function Documentation
23.2.1.1 ROM_uDMAChannelAssign
Assigns a peripheral mapping for a uDMA channel.
Prototype:
void
ROM_uDMAChannelAssign(uint32_t ui32Mapping)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_UDMATABLE is an array of pointers located at ROM_APITABLE[17].
ROM_uDMAChannelAssign is a function pointer located at ROM_UDMATABLE[23].
Parameters:
ui32Mapping is a macro specifying the peripheral assignment for a channel
Description:
This function assigns a peripheral mapping to a uDMA channel. It is used to select which pe-
ripheral is used for a uDMA channel. The parameter ui32Mapping should be one of the macros
named UDMA_CHn_tttt from the header file udma.h. For example, to assign uDMA channel
0 to the UART2 RX channel, the parameter should be the macro UDMA_CH0_UART2RX.
Returns:
None.
23.2.1.2 ROM_uDMAChannelAttributeDisable
Disables attributes of a uDMA channel.
Prototype:
void
ROM_uDMAChannelAttributeDisable(uint32_t ui32ChannelNum,
uint32_t ui32Attr)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_UDMATABLE is an array of pointers located at ROM_APITABLE[17].
ROM_uDMAChannelAttributeDisable is a function pointer located at
ROM_UDMATABLE[12].
274 April 8, 2013

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.