Texas Instruments Tiva TM4C123GH6PM User Manual

USB Controller
Prototype:
uint32_t
ROM_USBIntStatusEndpoint(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_USBIntStatusEndpoint is a function pointer located at ROM_USBTABLE[53].
Parameters:
ui32Base specifies the USB module base address.
Description:
This function will read endpoint interrupt status for a USB controller. This call will return
the current status for endpoint interrupts only, the control interrupt status is retrieved by
calling ROM_USBIntStatusControl(). The bit values returned should be compared against
the USB_INTEP_∗ values. These are grouped into classes for USB_INTEP_HOST_∗ and
USB_INTEP_DEV_∗ values to handle both host and device modes with all endpoints.
Note:
This call will clear the source of all of the endpoint interrupts.
Returns:
Returns the status of the endpoint interrupts for a USB controller.
24.3.1.54 ROM_USBModeGet
Returns the current operating mode of the controller.
Prototype:
uint32_t
ROM_USBModeGet(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_USBModeGet is a function pointer located at ROM_USBTABLE[46].
Parameters:
ui32Base specifies the USB module base address.
Description:
This function returns the current operating mode on USB controllers with OTG or Dual mode
functionality.
For OTG controllers:
The function will return on of the following values on OTG con-
trollers: USB_OTG_MODE_ASIDE_HOST, USB_OTG_MODE_ASIDE_DEV,
USB_OTG_MODE_BSIDE_HOST, USB_OTG_MODE_BSIDE_DEV,
USB_OTG_MODE_NONE.
USB_OTG_MODE_ASIDE_HOST indicates that the controller is in host mode on the A-side
of the cable.
April 8, 2013 337

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.