SH7712 Datasheet, PDF (759/978 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 18 Ethernet Controller (EtherC)
18.4.5 MII Frame Timing
Each MII Frame timing is shown in figure 18.7.
TX-CLK
TX-EN
TXD3 to TXD0
TX-ER
CRS
COL
Preamble
SFD
Data
CRC
Figure 18.7 (1) MII Frame Transmit Timing (Normal Transmission)
TX-CLK
TX-EN
TXD3 to TXD0
TX-ER
CRS
COL
Preamble
JAM
Figure 18.7 (2) MII Frame Transmit Timing (Collision)
Rev. 1.00 Dec. 27, 2005 Page 717 of 932
REJ09B0269-0100