IP178C
Preliminary Data Sheet
49/91
October 27, 2005
Copyright © 2004, IC Plus Corp.
IP178C-DS-R09
PHY
MII
ROM
R/W
Description
Default
MII status register (address 01)
0
1.4
--
RO
LH
Remote fault
1 = remote fault detected
0 = not remote fault detected
When read as logic 1, indicates that IP178C has detected a
remote fault condition. This bit is set until remote fault
condition gone and before reading the contents of the
register. This bit is cleared after IP178C reset.
0
0
1.3
--
RO
Auto-Negotiation Ability
1 = Auto-Negotiation capable
0 = not Auto-Negotiation capable
When read as logic 1, indicates that IP178C has the ability to
perform Auto-Negotiation. The value of this bit will depend on
the external mode setting of IP178C operation mode.
1
0
1.2
--
RO
LL
Link Status
1 = Link Pass
0 = Link Fail
When read as logic 1, indicates that IP178C has determined a
valid link has been established. When read as logic 0,
indicates the link is not valid. This bit is cleared until a valid
link has been established and before reading the contents of
this registers.
0
0
1.1
--
Jabber Detect
1 = jabber condition detected
0 = no jabber condition detected
When read as logic 1, indicates that IP178C has detected a
jabber condition. This bit is always 0 for 100 Mbps operation
and is cleared after IP113A reset. This bit is set until jabber
condition is cleared and reading the contents of the register.
0
0
1.0
--
RO
Extended capability
1 = Extended register capabilities
0 = No extended register capabilities
IP178C has extended register capabilities.
1
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