Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
 All Data Structures Variables Typedefs Groups
Register : Register 450 (System Time - Seconds Register) - gmacgrp_system_time_seconds

Description

The System Time -Seconds register, along with System-TimeNanoseconds register, indicates the current value of the system time maintained by the MAC. Though it is updated on a continuous basis, there is some delay from the actual time because of clock domain transfer latencies (from clk_ptp_ref_i to l3_sp_clk).

Register Layout

Bits Access Reset Description
[31:0] R 0x0 Timestamp Second

Field : Timestamp Second - tss

The value in this field indicates the current value in seconds of the System Time maintained by the MAC.

Field Access Macros:

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_LSB   0
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_MSB   31
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_WIDTH   32
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_SET_MSK   0xffffffff
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_CLR_MSK   0x00000000
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_RESET   0x0
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_GET(value)   (((value) & 0xffffffff) >> 0)
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_SET(value)   (((value) << 0) & 0xffffffff)
 

Data Structures

struct  ALT_EMAC_GMAC_SYS_TIME_SECS_s
 

Macros

#define ALT_EMAC_GMAC_SYS_TIME_SECS_RESET   0x00000000
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_OFST   0x708
 
#define ALT_EMAC_GMAC_SYS_TIME_SECS_ADDR(base)   ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_SYS_TIME_SECS_OFST))
 

Typedefs

typedef struct
ALT_EMAC_GMAC_SYS_TIME_SECS_s 
ALT_EMAC_GMAC_SYS_TIME_SECS_t
 

Data Structure Documentation

struct ALT_EMAC_GMAC_SYS_TIME_SECS_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_SYS_TIME_SECS.

Data Fields
const uint32_t tss: 32 Timestamp Second

Macro Definitions

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_LSB   0

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

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_MSB   31

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

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_WIDTH   32

The width in bits of the ALT_EMAC_GMAC_SYS_TIME_SECS_TSS register field.

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_SET_MSK   0xffffffff

The mask used to set the ALT_EMAC_GMAC_SYS_TIME_SECS_TSS register field value.

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_CLR_MSK   0x00000000

The mask used to clear the ALT_EMAC_GMAC_SYS_TIME_SECS_TSS register field value.

#define ALT_EMAC_GMAC_SYS_TIME_SECS_TSS_RESET   0x0

The reset value of the ALT_EMAC_GMAC_SYS_TIME_SECS_TSS register field.

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

Extracts the ALT_EMAC_GMAC_SYS_TIME_SECS_TSS field value from a register.

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

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

#define ALT_EMAC_GMAC_SYS_TIME_SECS_RESET   0x00000000

The reset value of the ALT_EMAC_GMAC_SYS_TIME_SECS register.

#define ALT_EMAC_GMAC_SYS_TIME_SECS_OFST   0x708

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

#define ALT_EMAC_GMAC_SYS_TIME_SECS_ADDR (   base)    ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_EMAC_GMAC_SYS_TIME_SECS_OFST))

The address of the ALT_EMAC_GMAC_SYS_TIME_SECS register.

Typedef Documentation

The typedef declaration for register ALT_EMAC_GMAC_SYS_TIME_SECS.