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

Description

Register 21 (Current Host Receive Buffer Address Register)

The Current Host Receive Buffer Address register points to the current Receive Buffer address being read by the DMA.

Register Layout

Bits Access Reset Description
[31:0] R 0x0 ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR

Field : currbufaptr

Host Receive Buffer Address Pointer

Cleared on Reset. Pointer updated by the DMA during operation.

Field Access Macros:

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_LSB   0
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_MSB   31
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_WIDTH   32
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_SET_MSK   0xffffffff
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_CLR_MSK   0x00000000
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_RESET   0x0
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_s
 

Macros

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_RESET   0x00000000
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_OFST   0x1054
 
#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_OFST))
 

Typedefs

typedef struct
ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_s 
ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_t
 

Data Structure Documentation

struct ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_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_EMAC_DMA_CUR_HOST_RX_BUF_ADDR.

Data Fields
const uint32_t currbufaptr: 32 ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR

Macro Definitions

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_LSB   0

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

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_MSB   31

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

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_WIDTH   32

The width in bits of the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR register field.

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_SET_MSK   0xffffffff

The mask used to set the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR register field value.

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_CLR_MSK   0x00000000

The mask used to clear the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR register field value.

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR_RESET   0x0

The reset value of the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR register field.

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

Extracts the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_CURRBUFAPTR field value from a register.

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

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

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_RESET   0x00000000

The reset value of the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR register.

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_OFST   0x1054

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

#define ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR_OFST))

The address of the ALT_EMAC_DMA_CUR_HOST_RX_BUF_ADDR register.

Typedef Documentation