HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 326

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Rev. 6.00 Jun. 12, 2007 Page 294 of 610
REJ09B0131-0600
Reception flowchart
This LSI + memory
EtherC/E-DMAC
Descriptor and
buffer setting
initialization
receive
Descriptor read (receive
ready for the next frame)
Receive data transfer
Descriptor write-back
Receive data transfer
Descriptor write-back
Start of reception
Descriptor read
Descriptor read
Figure 12.5 Sample Reception Flowchart
E-DMAC
Reception
completed
Receive FIFO
EtherC
Frame reception
PHY