Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Indirect Write Transfer Watermark Register - indwrwater

Description

Register Layout

Bits Access Reset Description
[31:0] RW 0xffffffff Watermark Value

Field : Watermark Value - level

This represents the maximum fill level of the SRAM before a DMA peripheral access is permitted. When the SRAM fill level falls below the watermark, an interrupt is also generated. This field can be disabled by writing a value of all ones. The units of this register are bytes.

Field Access Macros:

#define ALT_QSPI_INDWRWATER_LEVEL_LSB   0
 
#define ALT_QSPI_INDWRWATER_LEVEL_MSB   31
 
#define ALT_QSPI_INDWRWATER_LEVEL_WIDTH   32
 
#define ALT_QSPI_INDWRWATER_LEVEL_SET_MSK   0xffffffff
 
#define ALT_QSPI_INDWRWATER_LEVEL_CLR_MSK   0x00000000
 
#define ALT_QSPI_INDWRWATER_LEVEL_RESET   0xffffffff
 
#define ALT_QSPI_INDWRWATER_LEVEL_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_QSPI_INDWRWATER_LEVEL_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_QSPI_INDWRWATER_s
 

Macros

#define ALT_QSPI_INDWRWATER_OFST   0x74
 

Typedefs

typedef struct
ALT_QSPI_INDWRWATER_s 
ALT_QSPI_INDWRWATER_t
 

Data Structure Documentation

struct ALT_QSPI_INDWRWATER_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_INDWRWATER.

Data Fields
uint32_t level: 32 Watermark Value

Macro Definitions

#define ALT_QSPI_INDWRWATER_LEVEL_LSB   0

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

#define ALT_QSPI_INDWRWATER_LEVEL_MSB   31

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

#define ALT_QSPI_INDWRWATER_LEVEL_WIDTH   32

The width in bits of the ALT_QSPI_INDWRWATER_LEVEL register field.

#define ALT_QSPI_INDWRWATER_LEVEL_SET_MSK   0xffffffff

The mask used to set the ALT_QSPI_INDWRWATER_LEVEL register field value.

#define ALT_QSPI_INDWRWATER_LEVEL_CLR_MSK   0x00000000

The mask used to clear the ALT_QSPI_INDWRWATER_LEVEL register field value.

#define ALT_QSPI_INDWRWATER_LEVEL_RESET   0xffffffff

The reset value of the ALT_QSPI_INDWRWATER_LEVEL register field.

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

Extracts the ALT_QSPI_INDWRWATER_LEVEL field value from a register.

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

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

#define ALT_QSPI_INDWRWATER_OFST   0x74

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

Typedef Documentation

The typedef declaration for register ALT_QSPI_INDWRWATER.