Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Component : USB OTG Controller Module Registers - ALT_USB

Description

USB OTG Controller Module Registers

Registers in the USB OTG Controller Module.

Only the Core Global, Power and Clock Gating, Data FIFO Access, and Host Port registers can be accessedin both Host and Device modes. When the USB OTG Controller is operating in one mode, either Device or Host, the application must not access registers from the other mode. If an illegal access occurs, a Mode Mismatch interrupt is generated and reflected in the Core Interrupt register (GINTSTS.ModeMis).

When the core switches from one mode to another, the registers in the new mode must be reprogrammed as they would be after a power-on reset.

The register address map is fixed and does not depend on the module configuration (for example, how many endpoints are implemented). Host and Device mode registers occupy different addresses.

Members

 Register Group : Global Registers - ALT_USB_GLOB
 
 Register Group : Host Mode Registers - ALT_USB_HOST
 
 Register Group : Device Mode Registers - ALT_USB_DEV
 
 Register Group : Power and Clock Gating Register - ALT_USB_PWRCLK
 

Data Structures

struct  ALT_USB_s
 
struct  ALT_USB_raw_s
 

Typedefs

typedef struct ALT_USB_s ALT_USB_t
 
typedef struct ALT_USB_raw_s ALT_USB_raw_t
 

Data Structure Documentation

struct ALT_USB_s

WARNING: The C register and register group struct declarations are provided for convenience and illustrative purposes. They should, however, be used with caution as the C language standard provides no guarantees about the alignment or atomicity of device memory accesses. The recommended practice for writing hardware drivers is to use the SoCAL access macros and alt_read_word() and alt_write_word() functions.

The struct declaration for register group ALT_USB.

Data Fields
volatile ALT_USB_GLOB_t globgrp ALT_USB_GLOB
volatile uint32_t _pad_0x140_0x3ff UNDEFINED
volatile ALT_USB_HOST_t hostgrp ALT_USB_HOST
volatile uint32_t _pad_0x6fc_0x7ff UNDEFINED
volatile ALT_USB_DEV_t devgrp ALT_USB_DEV
volatile uint32_t _pad_0xd00_0xdff UNDEFINED
volatile ALT_USB_PWRCLK_t pwrclkgrp ALT_USB_PWRCLK
volatile uint32_t _pad_0xe04_0x40000 UNDEFINED
struct ALT_USB_raw_s

The struct declaration for the raw register contents of register group ALT_USB.

Data Fields
volatile ALT_USB_GLOB_raw_t globgrp ALT_USB_GLOB
volatile uint32_t _pad_0x140_0x3ff UNDEFINED
volatile ALT_USB_HOST_raw_t hostgrp ALT_USB_HOST
volatile uint32_t _pad_0x6fc_0x7ff UNDEFINED
volatile ALT_USB_DEV_raw_t devgrp ALT_USB_DEV
volatile uint32_t _pad_0xd00_0xdff UNDEFINED
volatile ALT_USB_PWRCLK_raw_t pwrclkgrp ALT_USB_PWRCLK
volatile uint32_t _pad_0xe04_0x40000 UNDEFINED

Typedef Documentation

typedef struct ALT_USB_s ALT_USB_t

The typedef declaration for register group ALT_USB.

typedef struct ALT_USB_raw_s ALT_USB_raw_t

The typedef declaration for the raw register contents of register group ALT_USB.