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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 592 -
Revision V1.30
NUC97
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CHNIC
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TXDMA Descriptor Data Structure
5.21.6.2
The TXDMA descriptor consists of four 32-bit words. The data structure of TXDMA descriptor
shown in figure below.
0
15
31
Transmit Frame Buffer Starting Address / Time Stamp Least Significant 32-Bit
P
Next TxDMA Descriptor Starting Address / Time Stamp Most Significant 32-Bit
O
W
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TXDES 0
TXDES 1
TXDES 2
TXDES 3
1
C
2
I
3
T
Reserved
Transmit Frame Status
Transmit Frame Byte Count
Figure 5.21-5 TXDMA Descriptor Data Structure