LAN9116 Datasheet, PDF (88/109 Pages) SMSC Corporation – Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller

LAN9116
TABLE 5-9: MODE CONTROL (CONTINUED)
Mode
Mode Definitions
100
100ase-TX Half Duplex is advertised. Auto-
negotiation enabled.
CRS is active during Transmit & Receive.
101
Repeater mode. Auto-negotiation enabled. 100Base-
TX Half Duplex is advertised.
CRS is active during Receive.
110
Reserved - Do not set the LAN9116 in this mode.
111
All capable. Auto-negotiation enabled.
Default Register Bit Values
Register 0
Register 4
[13,12,10,8]
1100
[8,7,6,5]
0100
1100
0100
N/A
X10X
N/A
1111
5.5.10 SPECIAL CONTROL/STATUS INDICATIONS
Index (In Decimal):
27
Size:
16-bits
Address
15:11
10
9-5
4
3:0
Description
Reserved: Write as 0. Ignore on read.
VCOOFF_LP: Forces the Receive PLL 10M to lock on the reference clock
at all times:
0 - Receive PLL 10M can lock on reference or line as needed (normal
operation)
1 - Receive PLL 10M is locked on the reference clock.
In this mode 10M data packets cannot be received.
Reserved: Write as 0. Ignore on read.
XPOL: Polarity state of the 10Base-T:
0 - Normal polarity
1 - Reversed polarity
Reserved: Read only - Writing to these bits have no effect.
Mode
RW
RW,
NASR
RW
RO
RO
Default
0
0
0
0
1011b
5.5.11 INTERRUPT SOURCE FLAG
Index (In Decimal):
29
Size:
16-bits
Bits
15-8 Reserved. Ignore on read.
Description
7 INT7. 1= ENERGYON generated, 0= not source of interrupt
6 INT6. 1= Auto-Negotiation complete, 0= not source of interrupt
5 INT5. 1= Remote Fault Detected, 0= not source of interrupt
4 INT4. 1= Link Down (link status negated), 0= not source of interrupt
3 INT3. 1= Auto-Negotiation LP Acknowledge, 0= not source of interrupt
2 INT2. 1= Parallel Detection Fault, 0= not source of interrupt
Type
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
Default
0
0
0
0
0
0
0
DS00002268A-page 88
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