IP100A LF
Preliminary Data Sheet
29/97
March. 30, 2007
Copyright © 2004, IC Plus Corp.
IP100A LF-DS-R17
BIT
BIT NAME
R/W
BIT DESCRIPTION
7
Collision Test
R/W
1 = Enable COL test. If Collision Test is a logic 1 and transmit
data is sent to the PHY, the IP100A LF PHY will assert the
collision signal within 512 bit times (where 1 bit time = 100ns
for 10Mbps operation and 1 bit time = 10ns for 100Mbps
operation). When transmit data is removed, the IP100A LF
PHY will deassert the collision signal within 4 bit times.
0 = Normal operation.
6..0
Reserved
N/A
Reserved for future use.
11.1.2 Status Register
Class............................. PHY Registers
Access Method............. Accessed through PhyCtrl register
Register Address.......... 0x01
Default .......................... 0x7849
Width ............................ 16 bits
BIT
BIT NAME
R/W
BIT DESCRIPTION
15
100BASE-T4
R
1 = PHY 100BASE-T4 capable.
0 = PHY not 100BASE-T4 capable.
14
100BASE-X Full
Duplex
R
1 = PHY 100BASE-X Half Duplex capable.
0 = PHY not 100BASE-X Half Duplex capable.
13
100BASE-X Half
Duplex
R
1 = PHY 100BASE-X Half Duplex capable.
0 = PHY not 100BASE-X Half Duplex capable.
12
10BASE-T Full
Duplex
R
1 = PHY 10BASE-T Full Duplex capable.
0 = PHY not 10BASE-T Full Duplex capable.
11
10BASE-T Half
Duplex
R
1 = PHY 10BASE-T Half Duplex capable.
0 = PHY not 10BASE-T Half Duplex capable.
10..7
Reserved
N/A
Reserved for future use.
6
Preamble
Suppression
R
1 = Management preamble may be suppressed.
0 = Management preamble required.
5
Auto-Negotiation
Complete
R
1 = Auto-Negotiation complete.
0 = Auto-Negotiation not complete.
If Auto-Negotiation Complete is a logic 1, the auto-negotiation
process is complete and the contents of the Auto-Negotiation Link
Partner Ability and Auto-Negotiation Expansion registers are
valid. If Auto-Negotiation Complete is a logic 0, the
Auto-Negotiation process is not complete, and the contents of the
Auto-Negotiation Link Partner Ability and Auto-Negotiation
Expansion registers are undefined. If the Auto-Negotiation bit of
the Control Register is a logic 0, then Auto-Negotiation Complete
is always a logic 0.
4
Remote Fault
R
1 = Remote Fault detected.
0 = Remote Fault not detected.
If Remote Fault is a logic 1, the IP100A LF has detected a remote
fault condition. Remote Fault will remain a logic 1 until the remote
fault condition no longer exists, and Remote Fault is read by the
host system.
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