DS33X81+ Maxim Integrated Products, DS33X81+ Datasheet - Page 63

• 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

8.15.2 MII Mode
The Ethernet interface can be configured for RMII operation by setting the hardware pin RMIIMIIS low. MII interface
operates synchronously from the external 25MHz reference (REF_CLK). The following figure shows the MII
architecture.
Figure 8-10. Example Configuration as DTE connected to an Ethernet PHY in MII Mode
Rev: 063008
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
WAN
Arbiter
Tx
MAC
DTE
Rx
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
63 of 375