lan91c95 Standard Microsystems Corp., lan91c95 Datasheet - Page 55

• Manufacturer Part Number: lan91c95
• Description: Isa/pcmcia Full Duplex Single-chip Ethernet And Modem Controller With Ram
• Manufacturer: Standard Microsystems Corp.

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 for
normal mode.
AUI
X
X
X
X
1
0
FDSE
X
X
0
0
0
1
FDUPLX
X
1
1
1
0
1
EPH_LOOP
1
0
0
0
0
0
55
LOOP
X
1
0
0
0
0
TXENA
disabled if clear. When the bit is cleared, the
LAN91C95 will complete the current transmission
before stopping. When stopping due to an error,
this bit is automatically cleared.
EPH Block
ENDEC
Cable
10BASE-T Driver
Normal CSMA/CD - No
Loopback
Full Duplex Switched
Ethernet - No loopback
and no SQET
- Transmit enabled when set. Transmit is
LOOPS AT
TRANSMITS
NETWORK
Yes
Yes
Yes
Yes
TO
No
No