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Chapter 3
• Supports remote network management capabilities through DMI 2.0 and SNMP software (SDG
3.0, WfM 2.0, and PC2001 compliance)
• Programmable LED functions for 4 LED support (speed, link, and activity) including blinking
• Supports integrated magnetics in RJ-45 connector
• Supports four-pair, 100 ohm, Category 5 UTP (Unshielded Twisted Pair) wiring
Tables 3-13 describes the pin-outs and signals of Gigabit Ethernet port, Ethernet Port 2.
Table 3-13. Ethernet Port 2 Pin/Signal Descriptions (J17)
Pin #
GND
1
MDI0+
2
MDI0-
3
MDI1+
4
MDI1-
5,6
VCC
7
MDI2+
8
MDI2-
9
MDI3+
10
MDI3-
11
Speed1
12
VCC3dual
13
Link#1
14
Act#1
15, 16
AC GND
Notes: The shaded area denotes power or ground.
10/100BaseT Ethernet Controller
Ethernet Port 1 uses an Intel 82551ER, 32-bit PCI controller that features enhanced scatter-gather bus
mastering capabilities, which enables the 82551ER to perform high-speed data transfers over the PCI
bus. The 82551ER bus master capabilities enable the component to process high-level commands and
perform multiple operations, thereby off-loading communication tasks from the system CPU.
• Backward software compatible to the 82559, 82558, and 82557
• Chained memory structure
• Full duplex or half-duplex support
• Full duplex support at 10Mbps and 100Mbps
• In half-duplex mode, performance is enhanced by a proprietary collision reduction mechanism.
• IEEE 802.3 10BaseT/100BaseT compatible physical layer to wire transformer
• 2 LED support for each port (speed, and link and activity are shared)
ReadyBoard 800
Digital Ground
Media Dependent Interface [0] – In MDI configuration (1000BaseT),
MDI[0]+/- corresponds to BI_DA+/-, and in MDI-X configuration, MDI[0]+/-
corresponds to BI_DB+/-. In MDI configuration (10BaseT or 100BaseT-TX),
MDI[0]+/- is used for transmit pair, and in MDI-X configuration, MDI[0]+/- is
used for the receive pair.
Media Dependent Interface [1] – In MDI configuration (1000BaseT), MDI[1]+/-
corresponds to BI_DB+/-, and in MDI-X configuration, MDI[1]+/- corresponds
to BI_DA+/-. In MDI configuration (10BaseT or 100BaseT-TX), MDI[1]+/- is
used for transmit pair, and in MDI-X configuration, MDI[1]+/- is used for the
receive pair.
+5 volts +/-5%
Media Dependent Interface [2] – In MDI configuration (1000BaseT), MDI[2]+/-
corresponds to BI_DC+/-, and MDI-X configuration, MDI[2]+/- corresponds to
BI_DD+/-. The 10BaseT or 100BaseT-TX are not used in this MDI pair.
Media Dependent Interface [3] – In MDI configuration (1000BaseT), MDI[3]+/-
corresponds to BI_DD+/-, and MDI-X configuration, MDI[3]+/- corresponds to
BI_DC+/-. The 10BaseT or 100BaseT-TX are not used in this MDI pair.
Speed LED – This signal line is shared with 1000BaseT and 100BaseT. The
10BaseT speed is indicated when no indication is seen for any activity.
+3V for plus side of LEDs
Link LED
Activity LED
Grounded (goes to ground through 0.1µ capacitor)
Reference Manual
Hardware
43
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