Usb Function Registers; Usb Function Overview - Texas Instruments OMAP5910 Technical Reference Manual

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Table of Contents

Table 7–90. USB Function Registers

Revision number read

Selects and enables the endpoint that can be accessed by the TI925T

The entry point to write into a selected TX endpoint, to read data from a

selected RX endpoint, or to read data from setup FIFO

Controls the FIFO and status of the selected endpoint

Provides a status of the FIFO and the results of the transactions

handshakes for the selected endpoint

The number of bytes which are in the receive FIFO for the selected

Control functions for power management and miscellaneous control for the

Miscellaneous controls for the function

Status reflecting the visible device states as defined in Section 13.6.6,

Device States Changed Handler

Provides a frame timer status for use in ISO communications

Enables all non-DMA interrupts

The universal serial bus (USB) function module supports the implementation

of a full-speed device fully compliant with the USB 1.1 standard (see

Figure 13–2). It provides an interface between the MPU core (TI925T) and the

USB wire and handles USB transactions with minimal TI925T intervention.

The module supports one control endpoint (EP0), up to 15 IN endpoints, and

up to 15 OUT endpoints. The exact endpoint configuration is software

programmable. The specific items of a configuration are for each endpoint, the

size in bytes, the direction (IN, OUT), the type (bulk/interrupt or ISO), and the

associated number.

The module also supports three DMA channels for IN endpoints and three

DMA channels for OUT endpoints for either bulk/interrupt or ISO transactions.

For more detail, see Chapter 13, USB Function Module.

The MPU base address is FFFB:4000.

USB Function Overview

MPU Public Peripherals