Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Device OUT Endpoint 4 Buffer Address Register - doepdmab4

Description

DMA Buffer Address.

Register Layout

Bits Access Reset Description
[31:0] R Unknown DMA Buffer Address

Field : DMA Buffer Address - doepdmab4

Holds the current buffer address. This register is updated as and when the data transfer for the corresponding end point is in progress. This register is present only in Scatter/Gather DMA mode.

Field Access Macros:

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_LSB   0
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_MSB   31
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_WIDTH   32
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_SET_MSK   0xffffffff
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_CLR_MSK   0x00000000
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_RESET   0x0
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_USB_DEV_DOEPDMAB4_s
 

Macros

#define ALT_USB_DEV_DOEPDMAB4_OFST   0x39c
 
#define ALT_USB_DEV_DOEPDMAB4_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DOEPDMAB4_OFST))
 

Typedefs

typedef struct
ALT_USB_DEV_DOEPDMAB4_s 
ALT_USB_DEV_DOEPDMAB4_t
 

Data Structure Documentation

struct ALT_USB_DEV_DOEPDMAB4_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 ALT_USB_DEV_DOEPDMAB4.

Data Fields
const uint32_t doepdmab4: 32 DMA Buffer Address

Macro Definitions

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_LSB   0

The Least Significant Bit (LSB) position of the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_MSB   31

The Most Significant Bit (MSB) position of the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_WIDTH   32

The width in bits of the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_SET_MSK   0xffffffff

The mask used to set the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field value.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_CLR_MSK   0x00000000

The mask used to clear the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field value.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_RESET   0x0

The reset value of the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field is UNKNOWN.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_GET (   value)    (((value) & 0xffffffff) >> 0)

Extracts the ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 field value from a register.

#define ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4_SET (   value)    (((value) << 0) & 0xffffffff)

Produces a ALT_USB_DEV_DOEPDMAB4_DOEPDMAB4 register field value suitable for setting the register.

#define ALT_USB_DEV_DOEPDMAB4_OFST   0x39c

The byte offset of the ALT_USB_DEV_DOEPDMAB4 register from the beginning of the component.

#define ALT_USB_DEV_DOEPDMAB4_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DOEPDMAB4_OFST))

The address of the ALT_USB_DEV_DOEPDMAB4 register.

Typedef Documentation

The typedef declaration for register ALT_USB_DEV_DOEPDMAB4.