Operation - Renesas H8S Family Hardware Manual

Section 20 Ethernet Controller (EtherC)

20.4

The overview of the Ethernet controller (EtherC) are shown below. The EtherC transmits and

receives PAUSE frames conforming to the Ethernet/IEEE802.3 frames.

Transmission

In response to a transmit request from the E-DMAC, the EtherC transmitter arranges the transmit

data into a frame and outputs to the RMII. The transmit data that has gone through the RMII is

output onto the lines by the PHY-LSI. Figure 20.2 shows the state transition of the EtherC

transmitter.

Rev. 1.00 Mar. 12, 2008 Page 776 of 1178

REJ09B0403-0100