Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : rx_sample_dly

Description

RX Sample Delay.

This register is only valid when the DW_apb_ssi is configured with rxd

sample delay logic (SSI_HAS_RX_SAMPLE_DELAY==1). When the DW_apb_ssi is

not configured with rxd sample delay logic, this register will not exist

and writing to its address location will have no effect; reading from

its address will return zero. This register control the number of ssi_clk

cycles that are delayed (from the default sample time) before the actual

sample of the rxd input occurs. It is impossible to write to this

register when the DW_apb_ssi is enabled. The DW_apb_ssi is enabled and

disabled by writing to the SSIENR register.

Register Layout

Bits Access Reset Description
[7:0] RW 0x0 ALT_SPIM_RX_SMPL_DLY_RSD
[31:8] ??? 0x0 UNDEFINED

Field : rsd

Rxd Sample Delay.

This register is used to delay the sample of the rxd input port. Each value

represents a single ssi_clk delay on the sample of rxd. Note; If this register

is programmed with a value that exceeds the depth of the internal shift

registers (SSI_RX_DLY_SR_DEPTH) zero delay will be applied to the rxd sample.

Field Access Macros:

#define ALT_SPIM_RX_SMPL_DLY_RSD_LSB   0
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_MSB   7
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_WIDTH   8
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_SET_MSK   0x000000ff
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_CLR_MSK   0xffffff00
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_RESET   0x0
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_GET(value)   (((value) & 0x000000ff) >> 0)
 
#define ALT_SPIM_RX_SMPL_DLY_RSD_SET(value)   (((value) << 0) & 0x000000ff)
 

Data Structures

struct  ALT_SPIM_RX_SMPL_DLY_s
 

Macros

#define ALT_SPIM_RX_SMPL_DLY_RESET   0x00000000
 
#define ALT_SPIM_RX_SMPL_DLY_OFST   0xf0
 
#define ALT_SPIM_RX_SMPL_DLY_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_SPIM_RX_SMPL_DLY_OFST))
 

Typedefs

typedef struct
ALT_SPIM_RX_SMPL_DLY_s 
ALT_SPIM_RX_SMPL_DLY_t
 

Data Structure Documentation

struct ALT_SPIM_RX_SMPL_DLY_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_SPIM_RX_SMPL_DLY.

Data Fields
uint32_t rsd: 8 ALT_SPIM_RX_SMPL_DLY_RSD
uint32_t __pad0__: 24 UNDEFINED

Macro Definitions

#define ALT_SPIM_RX_SMPL_DLY_RSD_LSB   0

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

#define ALT_SPIM_RX_SMPL_DLY_RSD_MSB   7

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

#define ALT_SPIM_RX_SMPL_DLY_RSD_WIDTH   8

The width in bits of the ALT_SPIM_RX_SMPL_DLY_RSD register field.

#define ALT_SPIM_RX_SMPL_DLY_RSD_SET_MSK   0x000000ff

The mask used to set the ALT_SPIM_RX_SMPL_DLY_RSD register field value.

#define ALT_SPIM_RX_SMPL_DLY_RSD_CLR_MSK   0xffffff00

The mask used to clear the ALT_SPIM_RX_SMPL_DLY_RSD register field value.

#define ALT_SPIM_RX_SMPL_DLY_RSD_RESET   0x0

The reset value of the ALT_SPIM_RX_SMPL_DLY_RSD register field.

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

Extracts the ALT_SPIM_RX_SMPL_DLY_RSD field value from a register.

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

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

#define ALT_SPIM_RX_SMPL_DLY_RESET   0x00000000

The reset value of the ALT_SPIM_RX_SMPL_DLY register.

#define ALT_SPIM_RX_SMPL_DLY_OFST   0xf0

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

#define ALT_SPIM_RX_SMPL_DLY_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_SPIM_RX_SMPL_DLY_OFST))

The address of the ALT_SPIM_RX_SMPL_DLY register.

Typedef Documentation

The typedef declaration for register ALT_SPIM_RX_SMPL_DLY.