AX88852 datasheet(5/39 Pages) ASIX

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AX88850

PRELIMINARY

ASIX ELECTRONICS CORPORATION

1.0 AX88850 Overview

The AX88850 series 100Mbps Repeater Controllers are designed for both low cost

dumb HUB and high performance intelligent HUB applications. The AX88850 series

product support up-to ten 100Mbps links with its 8 PCS (Physical coding sub-layer , also

called Symbol Interface) interfaces and 2 dedicated MII interfaces or supports up-to eighteen

100Mbps links with

2 shared 8 ports MII interfaces and 2 dedicated MII interfaces.

Maximum up-to 144 ports can be constructed when using expansion bus cascades 8

AX88850s. The AX88850 is designed base on IEEE 802.3u clause 27 “ Repeater for

100Mb/s base-band networks” . It is fully compatible with IEEE 802.3u standard.

1.1 General Description

The AX88850 Repeater Controller is a subset of a repeater set containing all the

repeater-specific components and functions, exclusive of PHY components and functions.

The AX88850 family has two kind of interfaces to connect to PHY devices. There are

Physical coding sub-layer (PCS) interface and Media Independent Interface (MII).

The AX88850 supports 8 PCS ports interface or 2 shared bus (8 ports/per bus) MII

interfaces, 2 dedicated MII ports interface, an expansion port interface, a management

information base IC interface, a repeater ID daisy chain interface, a serial register interface

and LED display interface.

AX88852 数据表(PDF) 5 Page - ASIX Electronics Corporation