DS33X81+ Maxim Integrated Products, DS33X81+ Datasheet - Page 65

• Manufacturer Part Number: DS33X81+
• Description: IC MAPPING ETHERNET 256CSBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS33X81+

• Applications: Data Transport
• Interface: Parallel/Serial
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Package / Case: 256-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.15.3 DTE and DCE Mode
When in 10/100 mode, the Ethernet MII interface(s) can be configured for DCE or DTE Mode. When configured in
DTE Mode, direct connection can be made to Ethernet PHYs. In DCE mode, the MII interface can be connected to
MII MAC devices other than an Ethernet PHY, such as Ethernet Switch devices. The DTE/DCE connections in MII
mode are shown in the following 2 figures.
In DCE Mode, the transmitter is connected to an external receiver and receiver is connected to an external MAC
transmitter. The selection of DTE or DCE mode is done by the hardware pin DCEDTES. DCE mode is not valid for
GbE (GMII) operation.
Figure 8-11. Example Configuration as a DCE in MII Mode
Rev: 063008
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
WAN
Arbiter
DCE
MAC
Rx
Tx
RXD[3:0]
TXD[3:0]
COL_DET
TX_CLK
RX_CRS
RX_ERR
RX_CLK
TX_EN
RXDV
MDIO
MDC
MDIO
TX_EN
COL_DET
TX_ERR
RX_CRS
RXD[3:0]
MDC
RX_CLK
TX_CLK
RXDV
TXD[3:0]
DTE
Tx
Rx
MAC
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