Specifications

Chapter 3 Hardware
52 Reference Manual LittleBoard 800
• IEEE 802.3ab Auto-Negotiation support, includes speed, duplex, and flow control
• IEEE 802.3ab PHY compliance and compatibility with Category-5 twisted pair cabling
• Implements latest DSP architecture with digital adaptive equalization, echo cancellation, and
crosstalk cancellation to achieve high performance in noisy environments (high electrical/signal
interference impairment)
• Supports transmit and receive IP, TCP, and UDP checksum offloading capabilities for lower CPU
utilization
• Supports Transmit TCP segmentation and advanced packet filtering
• Supports system monitoring with industry standard consoles (SNMP and RMON statistic counters)
• 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 3-21 describes the pin-outs and signals of Gigabit Ethernet port, Ethernet Port 2.
Table 3-21. Ethernet Port 2 Pin/Signal Descriptions (J10)
Pin # Signal Description
1MDI0+
2MDI0-
Media Dependent Interface [0]
1000BaseT – In MDI configuration, MDI0± corresponds to BI_DA±, and in
MDI-X configuration, MDI0± corresponds to BI_DB±.
10/100BaseT – In MDI configuration, MDI0± is used for the transmit pair,
and in MDI-X configuration, MDI0± is used for the receive pair.
3MDI1+
6MDI1-
Media Dependent Interface [1]
1000BaseT – In MDI configuration, MDI1± corresponds to BI_DB±, and in
MDI-X configuration, MDI1± corresponds to BI_DA±.
10/100BaseT – In MDI configuration, MDI1± is used for the transmit pair,
and in MDI-X configuration, MDI1± is used for the receive pair.
4MDI2+
5MDI2-
Media Dependent Interface [2]
1000BaseT – In MDI configuration, MDI2± corresponds to BI_DC±, and in
MDI-X configuration, MDI2± corresponds to BI_DD±.
10/100BaseT – Unused
7MDI3+
8MDI3-
Media Dependent Interface [3]
1000BaseT – In MDI configuration, MDI3± corresponds to BI_DC±, and in
MDI-X configuration, MDI3± corresponds to BI_DD±.
10/100BaseT – Unused
9 SPEED_1000 Speed (1000) LED – Indicates transfer rate at 1000Mbps.
10 SPEED_100 Speed (100) LED – Indicates transfer rate at 10Mbps or 100Mbps.
11 LINKLED Link LED – Indicates Link established between this port and another device
12 ACTLED Activity LED – Indicates Activity is occurring on the Ethernet link.
13, 14 SHLD
Shields – Connected to center taps of transformer and floating ground while
isolated from board common ground by 1000pf capacitor.
Note: The shaded area denotes power or ground.