AX88871AP Bripeater

ASIX ELECTRONICS CORPORATION

5

1.2 Features

• IEEE 802.3u repeater compatible

• Supports per port 10/100Mbps alternative with auto detected

• Build in 10/100Mbps Bridge engine with following features

1.Minimum 32K bytes, maximum 256K bytes SRAM to buffer packets

2.Seamless buffer management without waste any space of buffer memory

3.Simple asynchronous 8-bit SRAM interface to reduce system cost

4.256 or 1024 entries is supported

5.Auto learning and filtering

6.Two forwarding modes are supported : Store-n-Forward and fragment-free

7.Flow-control is supported optionally.

8.Buffer RAM auto testing

9.Routing and Learning at wire speed (148810 packets/sec at 100Mbps)

• Supports 8 10/100Mbps network connections

• 8 dedicated MII interfaces can support 100BASE-TX/T4/FX PHY interfaces

• Port 7 and/or 8 can connect to bridge, switch or MAC type device optionally.

• Up-to 8 repeater chips can be cascaded for large HUB application(old method)

• Up-to 6 repeaters can be cascaded for vertical expansion(new feature)

• Up-to 4 chips can be cascaded locally for horizontal expansion(new feature)

• Support two application mode : single or cascade

• Low latency design supports Class II repeater implementation with large port number

• All ports can be separately isolated or partitioned in response to fault condition

• Separate jabber and partition state machines for each port

• Per-port LED display for Jabber, Partition, Activity. Global partition, RAM test fail and

collision, utilization (%) for 10/100Mbps presentation

• Power on LED diagnosis. All the LED display will follow the “ON-OFF-ON-OFF-Normal”

operation procedure during/after power on reset

• 208-pin PQFP