gmacgrp_system_time_higher_word_seconds
System time higher word
Module Instance | Base Address | Register Address |
---|---|---|
i_emac_emac0 | 0xFF800000 | 0xFF800724 |
i_emac_emac1 | 0xFF802000 | 0xFF802724 |
i_emac_emac2 | 0xFF804000 | 0xFF804724 |
Offset: 0x724
Access: RW
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 |
|||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
tshwr RW 0x0 |
gmacgrp_system_time_higher_word_seconds Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
15:0 | tshwr | This field contains the most significant 16-bits of the timestamp seconds value. The register is directly written to initialize the value. This register is incremented when there is an overflow from the 32-bits of the System Time - Seconds register. |
RW | 0x0 |