Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Write Data Register - data

Description

Used to send configuration image to FPGA.

The DATA register accepts 4 bytes of the configuration image on each write. The configuration image byte-stream is converted into a 4-byte word with little- endian ordering. If the configuration image is not an integer multiple of 4 bytes, software should pad the configuration image with extra zero bytes to make it an integer multiple of 4 bytes.

The FPGA Manager converts the DATA to 16 bits wide when writing CB.DATA for partial reconfiguration.

The FPGA Manager waits to transmit the data to the CB until the FPGA is able to receive it. For a full configuration, the FPGA Manager waits until the FPGA exits the Reset Phase and enters the Configuration Phase. For a partial reconfiguration, the FPGA Manager waits until the CB.PR_READY signal indicates that the FPGA is ready.

Register Layout

Bits Access Reset Description
[31:0] RW Unknown Write Data Value

Field : Write Data Value - value

Accepts configuration image to be sent to CB when the HPS configures the FPGA. Software normally just writes this register. If software reads this register, it returns the value 0 and replies with an AXI SLVERR error.

Field Access Macros:

#define ALT_FPGAMGRDATA_DATA_VALUE_LSB   0
 
#define ALT_FPGAMGRDATA_DATA_VALUE_MSB   31
 
#define ALT_FPGAMGRDATA_DATA_VALUE_WIDTH   32
 
#define ALT_FPGAMGRDATA_DATA_VALUE_SET_MSK   0xffffffff
 
#define ALT_FPGAMGRDATA_DATA_VALUE_CLR_MSK   0x00000000
 
#define ALT_FPGAMGRDATA_DATA_VALUE_RESET   0x0
 
#define ALT_FPGAMGRDATA_DATA_VALUE_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_FPGAMGRDATA_DATA_VALUE_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_FPGAMGRDATA_DATA_s
 

Macros

#define ALT_FPGAMGRDATA_DATA_OFST   0x0
 

Typedefs

typedef struct
ALT_FPGAMGRDATA_DATA_s 
ALT_FPGAMGRDATA_DATA_t
 

Data Structure Documentation

struct ALT_FPGAMGRDATA_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_FPGAMGRDATA_DATA.

Data Fields
uint32_t value: 32 Write Data Value

Macro Definitions

#define ALT_FPGAMGRDATA_DATA_VALUE_LSB   0

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

#define ALT_FPGAMGRDATA_DATA_VALUE_MSB   31

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

#define ALT_FPGAMGRDATA_DATA_VALUE_WIDTH   32

The width in bits of the ALT_FPGAMGRDATA_DATA_VALUE register field.

#define ALT_FPGAMGRDATA_DATA_VALUE_SET_MSK   0xffffffff

The mask used to set the ALT_FPGAMGRDATA_DATA_VALUE register field value.

#define ALT_FPGAMGRDATA_DATA_VALUE_CLR_MSK   0x00000000

The mask used to clear the ALT_FPGAMGRDATA_DATA_VALUE register field value.

#define ALT_FPGAMGRDATA_DATA_VALUE_RESET   0x0

The reset value of the ALT_FPGAMGRDATA_DATA_VALUE register field is UNKNOWN.

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

Extracts the ALT_FPGAMGRDATA_DATA_VALUE field value from a register.

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

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

#define ALT_FPGAMGRDATA_DATA_OFST   0x0

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

Typedef Documentation

The typedef declaration for register ALT_FPGAMGRDATA_DATA.