Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : hcdmab1

Description

Host Channel 1 DMA Buffer Address Register

Register Layout

Bits Access Reset Description
[31:0] RW 0x0 ALT_USB_HOST_HCDMAB1_HCDMAB1

Field : hcdmab1

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. Otherwise this

field is reserved.

Field Access Macros:

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_LSB   0
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_MSB   31
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_WIDTH   32
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_SET_MSK   0xffffffff
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_CLR_MSK   0x00000000
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_RESET   0x0
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_USB_HOST_HCDMAB1_HCDMAB1_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_USB_HOST_HCDMAB1_s
 

Macros

#define ALT_USB_HOST_HCDMAB1_RESET   0x00000000
 
#define ALT_USB_HOST_HCDMAB1_OFST   0x13c
 
#define ALT_USB_HOST_HCDMAB1_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_HOST_HCDMAB1_OFST))
 

Typedefs

typedef struct
ALT_USB_HOST_HCDMAB1_s 
ALT_USB_HOST_HCDMAB1_t
 

Data Structure Documentation

struct ALT_USB_HOST_HCDMAB1_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_HOST_HCDMAB1.

Data Fields
uint32_t hcdmab1: 32 ALT_USB_HOST_HCDMAB1_HCDMAB1

Macro Definitions

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_LSB   0

The Least Significant Bit (LSB) position of the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_MSB   31

The Most Significant Bit (MSB) position of the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_WIDTH   32

The width in bits of the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_SET_MSK   0xffffffff

The mask used to set the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field value.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_CLR_MSK   0x00000000

The mask used to clear the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field value.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_RESET   0x0

The reset value of the ALT_USB_HOST_HCDMAB1_HCDMAB1 register field.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_GET (   value)    (((value) & 0xffffffff) >> 0)

Extracts the ALT_USB_HOST_HCDMAB1_HCDMAB1 field value from a register.

#define ALT_USB_HOST_HCDMAB1_HCDMAB1_SET (   value)    (((value) << 0) & 0xffffffff)

Produces a ALT_USB_HOST_HCDMAB1_HCDMAB1 register field value suitable for setting the register.

#define ALT_USB_HOST_HCDMAB1_RESET   0x00000000

The reset value of the ALT_USB_HOST_HCDMAB1 register.

#define ALT_USB_HOST_HCDMAB1_OFST   0x13c

The byte offset of the ALT_USB_HOST_HCDMAB1 register from the beginning of the component.

#define ALT_USB_HOST_HCDMAB1_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_HOST_HCDMAB1_OFST))

The address of the ALT_USB_HOST_HCDMAB1 register.

Typedef Documentation

The typedef declaration for register ALT_USB_HOST_HCDMAB1.