Texas Instruments Tiva TM4C123GH6PM User Manual

USB Controller
Note:
This function should only be called in host mode.
Returns:
None.
24.3.1.37 ROM_USBHostPwrDisable
Disables the external power pin.
Prototype:
void
ROM_USBHostPwrDisable(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_USBHostPwrDisable is a function pointer located at ROM_USBTABLE[28].
Parameters:
ui32Base specifies the USB module base address.
Description:
This function disables the USBEPEN signal to disable an external power supply in host mode
operation.
Note:
This function should only be called in host mode.
Returns:
None.
24.3.1.38 ROM_USBHostPwrEnable
Enables the external power pin.
Prototype:
void
ROM_USBHostPwrEnable(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_USBHostPwrEnable is a function pointer located at ROM_USBTABLE[29].
Parameters:
ui32Base specifies the USB module base address.
Description:
This function enables the USBEPEN signal to enable an external power supply in host mode
operation.
328 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.