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

Description

Writes to the FIFO Single Byte Register write a single 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 Single Byte FIFO Register read a single 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 BWFIFO1 for writes and BRFIFO1 for reads.

Register Layout

Bits Access Reset Description
[7:0] RW Unknown Single Byte Value
[31:8] ??? 0x0 UNDEFINED

Field : Single Byte Value - value

Transfers single byte value to/from command FIFO

Field Access Macros:

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_LSB   0
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_MSB   7
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_WIDTH   8
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_SET_MSK   0x000000ff
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_CLR_MSK   0xffffff00
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_RESET   0x0
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_GET(value)   (((value) & 0x000000ff) >> 0)
 
#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_SET(value)   (((value) << 0) & 0x000000ff)
 

Data Structures

struct  ALT_SCANMGR_FIFOSINGLEBYTE_s
 

Macros

#define ALT_SCANMGR_FIFOSINGLEBYTE_OFST   0x10
 

Typedefs

typedef struct
ALT_SCANMGR_FIFOSINGLEBYTE_s 
ALT_SCANMGR_FIFOSINGLEBYTE_t
 

Data Structure Documentation

struct ALT_SCANMGR_FIFOSINGLEBYTE_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_FIFOSINGLEBYTE.

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

Macro Definitions

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_LSB   0

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

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_MSB   7

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

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_WIDTH   8

The width in bits of the ALT_SCANMGR_FIFOSINGLEBYTE_VALUE register field.

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_SET_MSK   0x000000ff

The mask used to set the ALT_SCANMGR_FIFOSINGLEBYTE_VALUE register field value.

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_CLR_MSK   0xffffff00

The mask used to clear the ALT_SCANMGR_FIFOSINGLEBYTE_VALUE register field value.

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_RESET   0x0

The reset value of the ALT_SCANMGR_FIFOSINGLEBYTE_VALUE register field is UNKNOWN.

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_GET (   value)    (((value) & 0x000000ff) >> 0)

Extracts the ALT_SCANMGR_FIFOSINGLEBYTE_VALUE field value from a register.

#define ALT_SCANMGR_FIFOSINGLEBYTE_VALUE_SET (   value)    (((value) << 0) & 0x000000ff)

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

#define ALT_SCANMGR_FIFOSINGLEBYTE_OFST   0x10

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

Typedef Documentation

The typedef declaration for register ALT_SCANMGR_FIFOSINGLEBYTE.