Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : TX Threshold Register - txthresh

Description

Register Layout

Bits Access Reset Description
[3:0] RW 0x1 Level
[31:4] ??? 0x0 UNDEFINED

Field : Level - level

Defines the level at which the transmit FIFO not full interrupt is generated

Field Access Macros:

#define ALT_QSPI_TXTHRESH_LEVEL_LSB   0
 
#define ALT_QSPI_TXTHRESH_LEVEL_MSB   3
 
#define ALT_QSPI_TXTHRESH_LEVEL_WIDTH   4
 
#define ALT_QSPI_TXTHRESH_LEVEL_SET_MSK   0x0000000f
 
#define ALT_QSPI_TXTHRESH_LEVEL_CLR_MSK   0xfffffff0
 
#define ALT_QSPI_TXTHRESH_LEVEL_RESET   0x1
 
#define ALT_QSPI_TXTHRESH_LEVEL_GET(value)   (((value) & 0x0000000f) >> 0)
 
#define ALT_QSPI_TXTHRESH_LEVEL_SET(value)   (((value) << 0) & 0x0000000f)
 

Data Structures

struct  ALT_QSPI_TXTHRESH_s
 

Macros

#define ALT_QSPI_TXTHRESH_OFST   0x30
 

Typedefs

typedef struct ALT_QSPI_TXTHRESH_s ALT_QSPI_TXTHRESH_t
 

Data Structure Documentation

struct ALT_QSPI_TXTHRESH_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_QSPI_TXTHRESH.

Data Fields
uint32_t level: 4 Level
uint32_t __pad0__: 28 UNDEFINED

Macro Definitions

#define ALT_QSPI_TXTHRESH_LEVEL_LSB   0

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

#define ALT_QSPI_TXTHRESH_LEVEL_MSB   3

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

#define ALT_QSPI_TXTHRESH_LEVEL_WIDTH   4

The width in bits of the ALT_QSPI_TXTHRESH_LEVEL register field.

#define ALT_QSPI_TXTHRESH_LEVEL_SET_MSK   0x0000000f

The mask used to set the ALT_QSPI_TXTHRESH_LEVEL register field value.

#define ALT_QSPI_TXTHRESH_LEVEL_CLR_MSK   0xfffffff0

The mask used to clear the ALT_QSPI_TXTHRESH_LEVEL register field value.

#define ALT_QSPI_TXTHRESH_LEVEL_RESET   0x1

The reset value of the ALT_QSPI_TXTHRESH_LEVEL register field.

#define ALT_QSPI_TXTHRESH_LEVEL_GET (   value)    (((value) & 0x0000000f) >> 0)

Extracts the ALT_QSPI_TXTHRESH_LEVEL field value from a register.

#define ALT_QSPI_TXTHRESH_LEVEL_SET (   value)    (((value) << 0) & 0x0000000f)

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

#define ALT_QSPI_TXTHRESH_OFST   0x30

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

Typedef Documentation

The typedef declaration for register ALT_QSPI_TXTHRESH.