NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 589 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
RXDES 1: RXDMA Descriptor Word 1
The RXDMA descriptor word 1 contains the received frame buffer starting address or time stamp
least significant 32-bit value. The detail description of RXDES 1 is shown below.
31
30
29
28
27
26
25
24
RXBSA/TSLSB
23
22
21
20
19
18
17
16
RXBSA/TSLSB
15
14
13
12
11
10
9
8
RXBSA/TSLSB
7
6
5
4
3
2
1
0
RXBSA/TSLSB
Bits
Description
[31:0]
RXBSA
Receive Buffer Starting Address
The RXBSA is the buffer starting address to store the received packet.
Bits
Description
[31:0]
TSLSB
Time Stamp Least Significant 32-bit
If TSEN (EMACn_TSCR[0]) enabled, Ethernet MAC controller would store time stamp
least signification 32-bit value, register EMACn_TSLSR, into this field when it writes back
RX Descriptor to system memory.