SH7616 Datasheet, PDF (482/935 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series

Section 10 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Transmission flowchart
SH7616 + memory
E-DMAC
Transmit FIFO
EtherC
EtherC/E-DMAC
initialization
Descriptor and
transmit
buffer setting
Transmit directive
Descriptor read
Transmit data transfer
Descriptor write-back
Descriptor read
Ethernet
Transmit data transfer
Frame transmission
Descriptor write-back
Transmission
completed
Figure 10.4 Sample Transmission Flowchart
Rev. 2.00 Mar 09, 2006 page 456 of 906
REJ09B0292-0200