DS33R41 Maxim Integrated Products, DS33R41 Datasheet - Page 56

• Manufacturer Part Number: DS33R41
• Description: Network Controller & Processor ICs Inverse-Multiplexing Ethernet Mapper wit
• Manufacturer: Maxim Integrated Products

9.12.1 DTE and DCE Mode
The Ethernet MII/RMII port can be configured for DCE or DTE Mode. When the port is configured for the DTE
Mode it can be connected to an Ethernet PHY. In DCE mode, the port can be connected to MII/RMII MAC devices
other than an Ethernet PHY. The DTE/DCE connections for the device in MII mode are shown in the following two
figures.
In DCE Mode, the transmitter is connected to an external receiver and the receiver is connected to an external
MAC transmitter. The selection of DTE or DCE mode is done by the hardware pin DCEDTES.
Figure 9-8. Configured as DTE Connected to an Ethernet PHY in MII Mode
MAC
DS33R41
Tx
DTE
Rx
56 of 335
RXD[3:0]
TXD[3:0]
COL_DET
TX_CLK
RX_CRS
RX_ERR
RX_CLK
TX_EN
RXDV
MDIO
MDC
COL_DET
RX_CLK
RX_ERR
RX_CRS
RXDV
TX_EN
RXD[3:0]
TXD[3:0]
TX_CLK
MDIO
MDC
Ethernet Phy
DCE
Rx
Tx