W90P710_05 Datasheet, PDF (108/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
TXINTR [16]: Transmit Interrupt
The TXINTR indicates the packet transmission caused an interrupt condition.
1’b0: The packet transmission doesn’t cause an interrupt.
1’b1: The packet transmission caused an interrupt.
TBC [15:0]: Transmit Byte Count
The TBC indicates the byte count of the frame stored in the data buffer pointed by Tx descriptor for
transmission.
Tx Descriptor Word 3
31
30
29
28
27
26
25
24
NTXDSA
23
22
21
20
19
18
17
16
NTXDSA
15
14
13
12
11
10
9
8
NTXDSA
7
6
5
4
3
2
1
0
NTXDSA
NTXDSA [31:0]: Next Tx Descriptor Starting Address
The Tx descriptor is a link-list data structure. Consequently, NTXDSA is used to keep the starting
address of the next Tx descriptor. The bits [1:0] will be ignored by EMC. So, all Tx descriptor must
locate at word boundary memory address.
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