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LAN8710A-EZC 데이터시트(PDF) 14 Page - SMSC Corporation |
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LAN8710A-EZC 데이터시트(HTML) 14 Page - SMSC Corporation |
14 / 82 page Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology Datasheet Revision 1.4 (08-23-12) 14 SMSC LAN8710A/LAN8710Ai DATASHEET Note 2.2 Configuration strap values are latched on power-on reset and system reset. Configuration straps are identified by an underlined symbol name. Signals that function as configuration straps must be augmented with an external resistor when connected to a load. Refer to Section 3.7, "Configuration Straps," on page 36 for additional information. 1 LED 2 LED2 O12 Link Speed LED Indication. This pin is driven active when the operating speed is 100Mbps. It is inactive when the operating speed is 10Mbps or during line isolation. Note: Refer to Section 3.8.1, "LEDs," on page 39 for additional LED information. nINT/TXER/ TXD4 Function Select Configuration Strap nINTSEL IS (PU) This configuration strap selects the mode of the nINT/TXER/TXD4 pin. When nINTSEL is floated or pulled to VDD2A, nINT is selected for operation on the nINT/TXER/TXD4 pin (default). When nINTSEL is pulled low to VSS, TXER/TXD4 is selected for operation on the nINT/TXER/TXD4 pin. See Note 2.2 for more information on configuration straps. Note: Refer to See Section 3.8.1.2, "nINTSEL and LED2 Polarity Selection," on page 39 for additional information. Table 2.3 Serial Management Interface (SMI) Pins NUM PINS NAME SYMBOL BUFFER TYPE DESCRIPTION 1 SMI Data Input/Output MDIO VIS/ VOD8 Serial Management Interface data input/output 1 SMI Clock MDC VIS Serial Management Interface clock Table 2.4 Ethernet Pins NUM PINS NAME SYMBOL BUFFER TYPE DESCRIPTION 1 Ethernet TX/RX Positive Channel 1 TXP AIO Transmit/Receive Positive Channel 1 1 Ethernet TX/RX Negative Channel 1 TXN AIO Transmit/Receive Negative Channel 1 Table 2.2 LED Pins (continued) NUM PINS NAME SYMBOL BUFFER TYPE DESCRIPTION |
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