SMSC LAN91C111 9.3Register 2&3. PHY Identifier Register, 9.4Register 4. Auto-NegotiationAdvertisement Register, REG, R/W, BITS, NAME, SOFT RESET, DEFAULT VALUE

10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

REM_FLT- Remote Fault Detect

‘1’ indicates a Remote Fault. Latches the ‘1’ condition and is cleared by reading this register or resetting the PHY.

CAP_ANEG - AutoNegotiation Capable

Indicates the ability (‘1’) to perform ANEG or not (‘0’).

LINK - Link Status

A ‘1’ indicates a valid Link and a ‘0’ and invalid Link. The ‘0’ condition is latched until this register is read.

JAB - Jabber Detect

Jabber condition detected when ‘1’ for 10Mbps. ‘1’ latched until this register is read or the PHY is reset. Always ‘0’ for 100Mbps

EXREG - Extended Capability register

‘1’ Indicates extended registers are implemented

9.3Register 2&3. PHY Identifier Register

These two registers (offsets 2 and 3) provide a 32-bit value unique to the PHY.

REG	BITS	NAME	DEFAULT VALUE	R/W	SOFT RESET
2	15-0	Company ID	0000000000010110	R	Retains Original Value
3	15-10	Company ID	111110	R	Retains Original Value
3	9-4	Manufacturer's ID	000100	R	Retains Original Value
3	3-0	Manufacturer's Revision #	- - - -	R	Retains Original Value

9.4Register 4. Auto-Negotiation Advertisement Register

NP	ACK	RF	Reserved	Reserved	Reserved	T4	TX_FDX
RW	R	RW	RW	RW	RW	RW	RW
0	0	0	0	0	0	0	1
TX_HDX	10_FDX	10_HDX	Reserved	Reserved	Reserved	Reserved	CSMA
RW	RW	RW	RW	RW	RW	RW	RW
1	1	1	0	0	0	0	1

This register control the values transmitted by the PHY to the remote partner when advertising its abilities

Revision 1.91 (08-18-08) 76 SMSC LAN91C111 REV C

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