gmacgrp_auxiliary_timestamp_nanoseconds

         This register, along with Register 461 (Auxiliary Timestamp  Seconds Register), gives the 64-bit timestamp stored as auxiliary snapshot. The two registers together form the read port of a 64-bit wide FIFO with a depth of 16. Multiple snapshots can be stored in this FIFO. The ATSNS bits in the Timestamp Status register indicate the fill-level of this FIFO. The top of the FIFO is removed only when the last byte of Register 461 (Auxiliary Timestamp - Seconds Register) is read. In the little-endian mode, this means when Bits[31:24] are read. In big-endian mode, it corresponds to the reading of Bits[7:0] of Register 461 (Auxiliary Timestamp - Seconds Register).

Module Instance	Base Address	Register Address
`i_emac_emac0`	`0xFF800000`	`0xFF800730`
`i_emac_emac1`	`0xFF802000`	`0xFF802730`
`i_emac_emac2`	`0xFF804000`	`0xFF804730`

Size: 32

Offset: 0x730

Access: RO

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.

Bit Fields
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
`Reserved`	`auxtslo` `RO 0x0`
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
`auxtslo` `RO 0x0`

gmacgrp_auxiliary_timestamp_nanoseconds Fields

Bit	Name	Description	Access	Reset
30:0	`auxtslo`	Contains the lower 32 bits (nano-seconds field) of the auxiliary timestamp.	`RO`	`0x0`