Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : FIFO Triple Byte Register - fifotriplebyte

Description

Writes to the FIFO Triple Byte Register write a triple byte value to the command FIFO. If the command FIFO is full, the APB write operation is stalled until the command FIFO is not full.

Reads from the Triple Byte FIFO Register read a triple byte value from the command FIFO. If the command FIFO is empty, the APB read operation is stalled until the command FIFO is not empty.

See the ARM documentation for a description of the read and write values.

The name of this register in ARM documentation is BWFIFO3 for writes and BRFIFO3 for reads.

Register Layout

Bits Access Reset Description
[23:0] RW Unknown Triple Byte Value
[31:24] ??? 0x0 UNDEFINED

Field : Triple Byte Value - value

Transfers triple byte value to/from command FIFO

Field Access Macros:

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_LSB   0
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_MSB   23
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_WIDTH   24
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_SET_MSK   0x00ffffff
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_CLR_MSK   0xff000000
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_RESET   0x0
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_GET(value)   (((value) & 0x00ffffff) >> 0)
 
#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_SET(value)   (((value) << 0) & 0x00ffffff)
 

Data Structures

struct  ALT_SCANMGR_FIFOTRIPLEBYTE_s
 

Macros

#define ALT_SCANMGR_FIFOTRIPLEBYTE_OFST   0x18
 

Typedefs

typedef struct
ALT_SCANMGR_FIFOTRIPLEBYTE_s 
ALT_SCANMGR_FIFOTRIPLEBYTE_t
 

Data Structure Documentation

struct ALT_SCANMGR_FIFOTRIPLEBYTE_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_SCANMGR_FIFOTRIPLEBYTE.

Data Fields
uint32_t value: 24 Triple Byte Value
uint32_t __pad0__: 8 UNDEFINED

Macro Definitions

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_LSB   0

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

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_MSB   23

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

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_WIDTH   24

The width in bits of the ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE register field.

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_SET_MSK   0x00ffffff

The mask used to set the ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE register field value.

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_CLR_MSK   0xff000000

The mask used to clear the ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE register field value.

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_RESET   0x0

The reset value of the ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE register field is UNKNOWN.

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_GET (   value)    (((value) & 0x00ffffff) >> 0)

Extracts the ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE field value from a register.

#define ALT_SCANMGR_FIFOTRIPLEBYTE_VALUE_SET (   value)    (((value) << 0) & 0x00ffffff)

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

#define ALT_SCANMGR_FIFOTRIPLEBYTE_OFST   0x18

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

Typedef Documentation

The typedef declaration for register ALT_SCANMGR_FIFOTRIPLEBYTE.