Texas Instruments Tiva TM4C123GH6PM User Manual

USB Controller
uint32_t ROM_USBModeGet (uint32_t ui32Base)
uint32_t ROM_USBNumEndpointsGet (uint32_t ui32Base)
void ROM_USBOTGMode (uint32_t ui32Base)
void ROM_USBPHYPowerOff (uint32_t ui32Base)
void ROM_USBPHYPowerOn (uint32_t ui32Base)
24.3.1 Function Documentation
24.3.1.1 ROM_UpdateUSB
Starts an update over the USB interface.
Prototype:
void
ROM_UpdateUSB(uint8_t
*
pui8USBBootROMInfo)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_USBTABLE is an array of pointers located at ROM_APITABLE[16].
ROM_UpdateUSB is a function pointer located at ROM_USBTABLE[58].
Parameters:
pui8USBBootROMInfo is a pointer to an array containing the values that are used to cus-
tomize the USB interface.
Description:
Calling this function commences an update of the firmware via the USB interface. This function
assumes that the USB interface has already been configured and the device is being clocked
by the PLL. By using the pui8USBBootROMInfo, the vendor ID, proudct ID, bus- versus self-
powered, maximum power, device version, and USB strings can be customized.
Returns:
Never returns.
24.3.1.2 ROM_USBDevAddrGet
Returns the current device address in device mode.
Prototype:
uint32_t
ROM_USBDevAddrGet(uint32_t ui32Base)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_USBTABLE is an array of pointers located at ROM_APITABLE[16].
ROM_USBDevAddrGet is a function pointer located at ROM_USBTABLE[1].
Parameters:
ui32Base specifies the USB module base address.
304 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.