![]() |
Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
|
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 |
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 |
#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 struct ALT_EMAC_GMAC_SYS_TIME_SECS_s ALT_EMAC_GMAC_SYS_TIME_SECS_t |
The typedef declaration for register ALT_EMAC_GMAC_SYS_TIME_SECS.