IP1001 LF
Data Sheet
3
Functional Description
The IP1001 is an Ethernet transceiver for 1000BASE-T, 100BASE-TX, and 10BASE-T. It uses one pair of
UTP wires to transmit data and uses another pair to receive data when working in 100BASE-TX or 10BASE-T.
It uses four pairs of UTP wires to transmit and to receive data when working in 1000BASE-T.
It supports auto-negotiation, including next page exchanging, speed (1000M, 100M, 10M), duplex (full/ half)
mode and master/slave resolution. This device also supports RGMII/ GMII/ MII to interface a MAC device.
Registers in the IP1001 can be accessed via the SMI (MDC/MDIO). Three LEDs shows the various statuses
of the device. Pair skews in the cables are automatically adjusted. Wiring errors are automatically corrected
via pair swapping (automatic MDI/MDIX) and polarity correction.
3.1
Medium Dependent Interface (MDI) for Twisted Pair Cable
The interface between IP1001 and CAT5 cable consists of four signal pairs, channel A, B, C and D, that are
used for 1000BASE-T transmission/receiving. Each signal pair consists of two bi-directional pins that transmit
and receive data stream at the same time.
When the IP1001 operates in 100BASE-TX or 10BASE-T mode, only channel A and B are used, one for
transmission and the other for reception. IP1001 will handle the MDIX/MDI crossover issue of the twisted-pair
wire automatically. Please refer to section 3.5 Auto MDI/MDIX Crossover for detail.
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Dec. 18, 2007
IP1001-DS-R06
Copyright © 2006, IC Plus Corp.
ETC [ ETC ]
