Ampro Corporation XTX 820 Benutzerhandbuch
Chapter 3
Hardware
48
Reference Manual
XTX 820
Ethernet Port Interface
The Ethernet solution is provided by integrating the functions of I/O Hub (82801FBM) and the Intel
82562GZ Fast Ethernet PCI controller chip together. The Intel 82562GZ chip provides the physical
layer (PHY) and the I/O Hub provides the Media Access Controller (MAC).
82562GZ Fast Ethernet PCI controller chip together. The Intel 82562GZ chip provides the physical
layer (PHY) and the I/O Hub provides the Media Access Controller (MAC).
• Routed to J4 connector
• Supports full duplex or half-duplex operation
• Supports full duplex operation at 10 Mbps and 100 Mbps
• Provides IEEE 802.3 10BaseT/100BaseT compatible physical layer and LAN connect interface
• Supports IEEE 802.3u Auto-Negotiation
• Supports IEEE 802.3x 100BASE-TX flow control
• Provides 10Base-T auto-polarity correction
• Provides PHY detection of polarity, MDI-X, and cable lengths
• Supports Auto MDI, MDIX crossover at all speeds
• Provides Digital Adaptive Equalization control
• Provides Link Status interrupt capability and XOR tree mode support
• Supports 3-port LEDs (speed, link, and activity)
• Supports diagnostic loopback mode
• Provides low power at 3.3 V (less than 300 mW in active transmit mode)
• Reduced power in "unplugged mode" (less than 50 mW)
• Provides automatic detection of "unplugged mode"
• Baseboard must provide the Ethernet RJ-45 connector and the magnetics
• Supports full duplex or half-duplex operation
• Supports full duplex operation at 10 Mbps and 100 Mbps
• Provides IEEE 802.3 10BaseT/100BaseT compatible physical layer and LAN connect interface
• Supports IEEE 802.3u Auto-Negotiation
• Supports IEEE 802.3x 100BASE-TX flow control
• Provides 10Base-T auto-polarity correction
• Provides PHY detection of polarity, MDI-X, and cable lengths
• Supports Auto MDI, MDIX crossover at all speeds
• Provides Digital Adaptive Equalization control
• Provides Link Status interrupt capability and XOR tree mode support
• Supports 3-port LEDs (speed, link, and activity)
• Supports diagnostic loopback mode
• Provides low power at 3.3 V (less than 300 mW in active transmit mode)
• Reduced power in "unplugged mode" (less than 50 mW)
• Provides automatic detection of "unplugged mode"
• Baseboard must provide the Ethernet RJ-45 connector and the magnetics
Table 3-25. Simplified Ethernet Port Pin/Signal Descriptions (J4)
J4
Pin #
Pin #
Signal
Description
97
TX+
95
TX-
Analog Twisted Pair Ethernet Transmit Differential Pair – These pins
transmit the serial bit stream to the baseboard as differential signals.
transmit the serial bit stream to the baseboard as differential signals.
93
RX
91
RX-
Analog Twisted Pair Ethernet Receive Differential Pair – These pins
receive the serial bit stream from the baseboard as differential signals.
receive the serial bit stream from the baseboard as differential signals.
GND
Ground
10
LILED
Link Integrity LED – The LINK LED pin indicates link integrity. If the
link is valid in either 10 or 100 Mbps, the LED is on; if the link is
invalid, the LED is off.
link is valid in either 10 or 100 Mbps, the LED is on; if the link is
invalid, the LED is off.
12
ACTLED Activity LED – The Activity LED pin indicates either transmit or receive
activity. When activity is present, the activity LED is on; when no
activity is present, the activity LED is off.
activity is present, the activity LED is off.
14
SPDLED
Speed LED – The speed LED pin indicates the speed. The speed LED
will be on at 100 Mbps and off at 10 Mbps.
will be on at 100 Mbps and off at 10 Mbps.
Note: The shaded area denotes power or ground.