Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Register 5 (GMII Data Register) - GMII_Data

Description

The GMII Data register stores Write data to be written to the PHY register located at the address specified in Register 4 (GMII Address Register). This register also stores the Read data from the PHY register located at the address specified by Register 4.

Register Layout

Bits Access Reset Description
[15:0] RW 0x0 GMII Data
[31:16] ??? 0x0 UNDEFINED

Field : GMII Data - gd

This field contains the 16-bit data value read from the PHY or RevMII after a Management Read operation or the 16-bit data value to be written to the PHY or RevMII before a Management Write operation.

Field Access Macros:

#define ALT_EMAC_GMAC_GMII_DATA_GD_LSB   0
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_MSB   15
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_WIDTH   16
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_SET_MSK   0x0000ffff
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_CLR_MSK   0xffff0000
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_RESET   0x0
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_GET(value)   (((value) & 0x0000ffff) >> 0)
 
#define ALT_EMAC_GMAC_GMII_DATA_GD_SET(value)   (((value) << 0) & 0x0000ffff)
 

Data Structures

struct  ALT_EMAC_GMAC_GMII_DATA_s
 

Macros

#define ALT_EMAC_GMAC_GMII_DATA_OFST   0x14
 
#define ALT_EMAC_GMAC_GMII_DATA_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_GMII_DATA_OFST))
 

Typedefs

typedef struct
ALT_EMAC_GMAC_GMII_DATA_s 
ALT_EMAC_GMAC_GMII_DATA_t
 

Data Structure Documentation

struct ALT_EMAC_GMAC_GMII_DATA_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_GMAC_GMII_DATA.

Data Fields
uint32_t gd: 16 GMII Data
uint32_t __pad0__: 16 UNDEFINED

Macro Definitions

#define ALT_EMAC_GMAC_GMII_DATA_GD_LSB   0

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

#define ALT_EMAC_GMAC_GMII_DATA_GD_MSB   15

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

#define ALT_EMAC_GMAC_GMII_DATA_GD_WIDTH   16

The width in bits of the ALT_EMAC_GMAC_GMII_DATA_GD register field.

#define ALT_EMAC_GMAC_GMII_DATA_GD_SET_MSK   0x0000ffff

The mask used to set the ALT_EMAC_GMAC_GMII_DATA_GD register field value.

#define ALT_EMAC_GMAC_GMII_DATA_GD_CLR_MSK   0xffff0000

The mask used to clear the ALT_EMAC_GMAC_GMII_DATA_GD register field value.

#define ALT_EMAC_GMAC_GMII_DATA_GD_RESET   0x0

The reset value of the ALT_EMAC_GMAC_GMII_DATA_GD register field.

#define ALT_EMAC_GMAC_GMII_DATA_GD_GET (   value)    (((value) & 0x0000ffff) >> 0)

Extracts the ALT_EMAC_GMAC_GMII_DATA_GD field value from a register.

#define ALT_EMAC_GMAC_GMII_DATA_GD_SET (   value)    (((value) << 0) & 0x0000ffff)

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

#define ALT_EMAC_GMAC_GMII_DATA_OFST   0x14

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

#define ALT_EMAC_GMAC_GMII_DATA_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_GMII_DATA_OFST))

The address of the ALT_EMAC_GMAC_GMII_DATA register.

Typedef Documentation

The typedef declaration for register ALT_EMAC_GMAC_GMII_DATA.