TM4C1299KCZAD Datasheet, PDF (1566/2014 Pages) Texas Instruments – Tiva Microcontroller

Ethernet Controller
Register 48: Ethernet MAC Timestamp Status (EMACTIMSTAT), offset 0x728
Ethernet MAC Timestamp Status (EMACTIMSTAT)
Base 0x400E.C000
Offset 0x728
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
TSTARGT TSSOVF
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:2
1
Name
reserved
TSTARGT
Type
RO
RO
Reset
0x0
0x0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Timestamp Target Time Reached
Value Description
0x0 Target Time has not been reached.
0x1 Indicates that the value of system time is greater or equal to the
value specified in EMACTARGSEC (Target Time Seconds
Register) and EMACTARGNANO (Target Time Nanoseconds
Register).
0
TSSOVF
RO
0x0
Timestamp Seconds Overflow
Value Description
0x0 No timestamp overflow has occurred.
0x1 Indicates the seconds value of the timestamp has overflowed
beyond 0xFFFF.FFFF.
1566
Texas Instruments-Production Data
June 18, 2014