Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Device IN Endpoint 4 DMA Buffer Address Register - diepdmab4

Description

DMA Buffer Address.

Register Layout

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

Field : DMA Buffer Address - diepdmab4

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_DIEPDMAB4_DIEPDMAB4_LSB   0
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_MSB   31
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_WIDTH   32
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_SET_MSK   0xffffffff
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_CLR_MSK   0x00000000
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_RESET   0x0
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_USB_DEV_DIEPDMAB4_s
 

Macros

#define ALT_USB_DEV_DIEPDMAB4_OFST   0x19c
 
#define ALT_USB_DEV_DIEPDMAB4_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DIEPDMAB4_OFST))
 

Typedefs

typedef struct
ALT_USB_DEV_DIEPDMAB4_s 
ALT_USB_DEV_DIEPDMAB4_t
 

Data Structure Documentation

struct ALT_USB_DEV_DIEPDMAB4_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_DIEPDMAB4.

Data Fields
const uint32_t diepdmab4: 32 DMA Buffer Address

Macro Definitions

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_LSB   0

The Least Significant Bit (LSB) position of the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_MSB   31

The Most Significant Bit (MSB) position of the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_WIDTH   32

The width in bits of the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_SET_MSK   0xffffffff

The mask used to set the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field value.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_CLR_MSK   0x00000000

The mask used to clear the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field value.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_RESET   0x0

The reset value of the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field is UNKNOWN.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_GET (   value)    (((value) & 0xffffffff) >> 0)

Extracts the ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 field value from a register.

#define ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4_SET (   value)    (((value) << 0) & 0xffffffff)

Produces a ALT_USB_DEV_DIEPDMAB4_DIEPDMAB4 register field value suitable for setting the register.

#define ALT_USB_DEV_DIEPDMAB4_OFST   0x19c

The byte offset of the ALT_USB_DEV_DIEPDMAB4 register from the beginning of the component.

#define ALT_USB_DEV_DIEPDMAB4_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DIEPDMAB4_OFST))

The address of the ALT_USB_DEV_DIEPDMAB4 register.

Typedef Documentation

The typedef declaration for register ALT_USB_DEV_DIEPDMAB4.