SLXT970AQC.B11-831643 Cortina Systems Inc, SLXT970AQC.B11-831643 Datasheet - Page 18

• Manufacturer Part Number: SLXT970AQC.B11-831643
• Manufacturer: Cortina Systems Inc

Specifications of SLXT970AQC.B11-831643

• Number Of Receivers: 1
• Data Rate: 10/100Mbps
• Operating Supply Voltage (typ): 5V
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Mounting: Surface Mount
• Pin Count: 64
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Lead Free Status / RoHS Status: Not Compliant

Intel
2.0
2.1
18
Figure 3. Network Interface Card (NIC) Application
®
LXT970A Dual-Speed Fast Ethernet Transceiver
Functional Description
Introduction
The LXT970A Transceiver, a new-generation version of the LXT970 10/100 PHY Fast Ethernet
Transceiver incorporates several functional enhancements for a more robust Ethernet solution. The
LXT970A Transceiver supports optional MII driver strength capabilities and link-loss criteria
selectable via the MDIO register set.
The LXT970A Transceiver can directly drive a twisted-pair cable for up to 100 meters. The
LXT970A Transceiver also provides a pseudo-ECL interface for driving a 100BASE-FX fiber
connection. On power-up, the LXT970A Transceiver uses auto-negotiation with parallel detection
to automatically determine line operating conditions. If the PHY device on the other side of the
link supports auto-negotiation, the LXT970A Transceiver auto-negotiates using Fast Link Pulse
(FLP) bursts. If the PHY partner does not support auto-negotiation, the LXT970A Transceiver
automatically detects the presence of either link pulses (10 Mbps PHY) or Idle symbols (100 Mbps
PHY) and set its operating speed accordingly. When the line speed selection is made via the
parallel detection method, the duplex mode sets to half. The user may later select full-duplex
operation by subsequent writes to the appropriate MDIO register. Line operation can also be set
using the Hardware Control Interface.
The LXT970A Transceiver interfaces to a 10/100 MAC through the MII interface. The
LXT970A Transceiver performs all functions of the Physical Coding Sublayer (PCS) and Physical
Media Attachment (PMA) sublayer as defined in the IEEE 802.3 100BASE-X specification. It
also performs all Physical Media Dependent (PMD) sublayer functions for 100BASE-TX
connections. The MII speed is automatically set once line operating conditions have been
determined.
See
repeater, and switch applications. It provides half- and full-duplex operation at 100 Mbps and 10
Mbps. The LXT970A Transceiver supports the 802.3 MDIO register set. Specific bits in the
registers are referenced using an “X.Y” notation, where X is the register address (0-6 or 16-20) and
Y is the bit number (0:15).
Figure 3
(EISA,PCI)
Controller
PC Bus
MAC
for a typical Network Interface Card (NIC). The LXT970A Transceiver supports NIC,
LXT970A
Magneti
c
Connectio
RJ-45
n
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