Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Register 454 (Timestamp Addend Register) - Timestamp_Addend

Description

This register value is used only when the system time is configured for Fine Update mode (TSCFUPDT bit in Register 448). This register content is added to a 32-bit accumulator in every clock cycle (of clk_ptp_ref_i) and the system time is updated whenever the accumulator overflows.

Register Layout

Bits Access Reset Description
[31:0] RW 0x0 Timestamp Addend Register

Field : Timestamp Addend Register - tsar

This field indicates the 32-bit time value to be added to the Accumulator register to achieve time synchronization.

Field Access Macros:

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_LSB   0
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_MSB   31
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_WIDTH   32
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_SET_MSK   0xffffffff
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_CLR_MSK   0x00000000
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_RESET   0x0
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_EMAC_GMAC_TS_ADDEND_s
 

Macros

#define ALT_EMAC_GMAC_TS_ADDEND_OFST   0x718
 
#define ALT_EMAC_GMAC_TS_ADDEND_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_TS_ADDEND_OFST))
 

Typedefs

typedef struct
ALT_EMAC_GMAC_TS_ADDEND_s 
ALT_EMAC_GMAC_TS_ADDEND_t
 

Data Structure Documentation

struct ALT_EMAC_GMAC_TS_ADDEND_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_EMAC_GMAC_TS_ADDEND.

Data Fields
uint32_t tsar: 32 Timestamp Addend Register

Macro Definitions

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_LSB   0

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

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_MSB   31

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

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_WIDTH   32

The width in bits of the ALT_EMAC_GMAC_TS_ADDEND_TSAR register field.

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_SET_MSK   0xffffffff

The mask used to set the ALT_EMAC_GMAC_TS_ADDEND_TSAR register field value.

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_CLR_MSK   0x00000000

The mask used to clear the ALT_EMAC_GMAC_TS_ADDEND_TSAR register field value.

#define ALT_EMAC_GMAC_TS_ADDEND_TSAR_RESET   0x0

The reset value of the ALT_EMAC_GMAC_TS_ADDEND_TSAR register field.

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

Extracts the ALT_EMAC_GMAC_TS_ADDEND_TSAR field value from a register.

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

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

#define ALT_EMAC_GMAC_TS_ADDEND_OFST   0x718

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

#define ALT_EMAC_GMAC_TS_ADDEND_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_TS_ADDEND_OFST))

The address of the ALT_EMAC_GMAC_TS_ADDEND register.

Typedef Documentation

The typedef declaration for register ALT_EMAC_GMAC_TS_ADDEND.