AX88140AP datasheet(25/46 Pages) ASIX

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AX88140A

PRELIMINARY

ASIX ELECTRONICS CORPORATION

Half-Duplex

Accept broadcast packet

R/W

RB - Receive broadcast packet

Reject broadcast packet

Enable Pass All Multicast

R/W

PM - Pass All Multicast

Disable Pass All Multicast

Indicates that any incoming valid frame is received,

regardless of its destination address.

R/W

PR - Promiscuous Mode

Disable Promiscuous Mode.

5:4

Reserved.--Written as “0” for future compatibility concern.

All incoming frames that passed the address

filtering are received, including runt frames,

collided fragments, or truncated frames caused by

FIFO over-flow. If any received bad frames are

required, promiscuous mode (REG6<6>) should be

set to 1.

R/W

PB - Pass Bad Frames

Disable pass bad frame.

Reserved.--Written as “0” for future compatibility concern.

Start Receive

R/W

SR - Start/Stop Receive

Stop Receive

PLS - PCS_SYM Link Status : Active high.

Tab - 21 REG6 Operation Mode Register Description

Port and Data Rate Selection

REG6

<18>

REG6

<22>

REG6

<23>

REG6

<24>

ACTIVE

PORT

DATA

RATE

FUNCTION

SRL

10MB/S

Conventional 10MB/S ENDEC interface

MII/SYM

10MB/S

MII with transmit FIFO thresholds appropriate

for 10MB/S

MII/SYM

100MB/S MII with transmit FIFO thresholds appropriate

for 100MB/S

MII/SYM

100MB/S PCS function for 100BASE-FX

MII/SYM

100Mb/s

PCS and scrambler functions for 100BASE-T

Tab - 22 Port and Data Rate Selection

AX88140AP Datasheet(PDF) 25 Page - ASIX Electronics Corporation

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