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Transmission flowchart
This LSI + memory
EtherC/E-DMAC
initialization
Descriptor and
transmit
buffer setting
Transmit directive
Descriptor read
Transmit data transfer
Descriptor write-back
Descriptor read
Transmit data transfer
Descriptor write-back
Section 21 Ethernet Controller Direct Memory Access Controller (E-DMAC)
E-DMAC
Transmit FIFO
Transmission
completed
Figure 21.4 Sample Transmission Flowchart
EtherC
Frame transmission
Rev. 1.00 Mar. 12, 2008 Page 827 of 1178
Ethernet
REJ09B0403-0100
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