Smc-networks SMC91C95 User Manual download pdf (Page 41)

LOOP - Local Loopback. When set, transmit

frames are internally looped to the receiver after

the encoder/decoder. Collision and Carrier Sense

are ignored. No data is sent out. Defaults low to

normal mode.

TXENA - Transmit enabled when set. Transmit is

disabled if clear. When the bit is cleared, the

SMC91C95 will complete the current transmission

before stopping. When stopping due to an error,

this bit is automatically cleared.

AUI FDSE FDUPLX EPH_LOOP LOOP LOOPS AT

TRANSMITS

NETWORK

X X X 1 X EPH Block No

X X 1 0 1 ENDEC No

1 0 1 0 0 Cable Yes

0 0 1 0 0 10BASE-T Driver Yes

X 0 0 0 0 Normal CSMA/CD - No

Loopback

Yes

X 1 1 0 0 Full Duplex Switched

Ethernet - No loopback

and no SQET

Yes

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Smc-networks SMC91C95 User Manual Page 41