IP113M LF
Preliminary Data Sheet
44/58
April 9, 2007
Copyright © 2004, IC Plus Corp.
IP113M LF-DS-R11
Extended MII registers and EEPROM registers 20
MII
ROM
NAME
R/W
DESCRIPTION
DEFAULT
Switch configuration register 1 (MII register 20D, EEPROM register 02~03D)
20.0
2.0
Reserved
0
20.1
2.1
direct_wire
R/W
Please see pin description of DIRECT_WIRE
for more detail information.
This bit overwrites the setting on pin 22
DIRECT_WIRE.
Pin (0)
20.2
2.2
fast_fwd
R/W
Please see pin description of FAST_FWD
for more detail information.
This bit overwrites the setting on pin 23
FAST_FWD.
Pin (0)
20.3
2.3
mg_pass_fragment
_
en
R/W
Pass fragment packet, which is longer than
7 bytes and shorter than 64bytes1: pass
fragment
0: not pass fragment
0
20.4
2.4
mg_col16_drop_en
R/W
Collision 16 times drop enable
A port drops a transmission packet if it
experiences 16 consecutive collisions.
1: enable
0: disable
0
20.5
2.5
mg_col_backoff_en
R/W
Collision back-off enable
1: back off after collision
0: not back off after collision
This bit should be “1” for normal operation.
1
20.6
2.6
Reserved
R/W
It must be 0.
0
20.7
2.7
p01_mg_backpress
_en
R/W
TP port backpressure enable
Backpressure is flow control for half duplex
operation
1: backpressure enable
0: backpressure disable
1
20.8
3.0
mg_rem_ctrl_en
R/W
Remote control enable
1: ability enable. IP113M LF is capable of
transmission and receiving maintenance
frame to perform remote control.
0: ability disable. IP113M LF is not capable
of transmission and receiving
maintenance frame to perform remote
control.
1
20.9
3.1
mg_auto_tx_mf_en
R/W
Auto send status frame to link partner
through fiber port (AUTO_SEND)
1: auto send indication maintenance frame
0: disable auto send function
This bit overwrites the setting on pin 25
AUTO_SEND. Please see pin description
of AUTO_SEND for more detail information.
Pin (0)
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
