DM9301 datasheet(6/22 Pages) ETC

6 / 22 page

DM9301

100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter

Final

Version: DM9301-DS-F02

May 8, 2000

Clock and Misc. Interface (Continued)

TRIDRV

Tristate Digital Output Pins:

When set high, all digital output pins are set to high

impedance.

RESET#

Reset: Active Low input that initializes the DM9301,

must be asserted low for 30msecs after VCC is stable.

HLTNOLNK

Send Halt on no Link Condition:

Causes the DM9301 to Send out a Halt symbol to the

TX interface if no FX link active or send out a Halt

symbol to the FX interface if no TX link active.

Propagates a no-link condition to the Link Partner if 1,

Idle symbol if 0. Active high

CONFIGA

Config A: Must be connected to GND

CONFIGB

Config B: Must be connected to GND

LED Interface

FXLNKLED#

FX Link LED:

Indicates Good Link status for 100Mbps FX operation.

Active low (Open Drain Output)

TXLNKLED#

TX Link LED:

Indicates Good Link status for 100Mbps TX operation.

Active low (Open Drain Output)

FXRCVLED#

FX Receive LED:

Indicates the presence of receive activity for 100Mbps

FX operation. Active low (Open Drain Output)

The DM9301 incorporates a "monostable" function on

the FXRCVLED output. This ensures that even

minimum size packets generate adequate LED ON to

insure visibility.

TXRCVLED#

TX Receive LED:

Indicates the presence of receive activity for 100Mbps

TX operation. Active low (Open Drain Output)

The DM9301 incorporates a "monostable" function on

the TXRCVLED output. This ensures that even

minimum size packets generate adequate LED ON to

insure visibility.

FXERRLED#

FX Error LED:

Indicates an error was detected by the FX Code Group

Alignment Monitor function on the FX receiver. Active

low (Open Drain Output)

The DM9301 incorporates a "monostable" function on

the FXERRLED output. This ensures that even

minimum size errors generate adequate LED ON to

insure visibility.

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