lan9218i Standard Microsystems Corp., lan9218i Datasheet - Page 110

• Manufacturer Part Number: lan9218i
• Description: Lan9218i High-performance Single-chip 10/100 Ethernet Controller With Hp Auto-mdix And Industrial Temperature Support
• Manufacturer: Standard Microsystems Corp.

Revision 2.3 (08-06-08)
5.5.10
ADDRESS
12:11
9-5
3:0
15
14
13
10
4
Special Control/Status Indications
Override AMDIX Strap
0 - AMDIX_EN (pin 73) enables or disables HP Auto MDIX
1 - Override pin 73. PHY Register 27.14 and 27.13 determine MDIX
function
Auto-MDIX Enable: Only effective when 27.15=1, otherwise ignored.
0 = Disable Auto-MDIX. 27.13 determines normal or reversed connection.
1 = Enable Auto-MDIX. 27.13 must be set to 0.
Auto-MDIX State. Only effective when 27.15=1, otherwise ignored.
When 27.14 = 0 (manually set MDIX state):
When 27.14 = 1 (automatic MDIX) this bit must be set to 0.
Do not use the combination 27.15=1, 27.14=1, 27.13=1.
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
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.
operation)
Index (In Decimal):
0 = no crossover (TPO = output, TPI = input)
1 = crossover (TPO = input, TPI = output)
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
DESCRIPTION
27
DATASHEET
110
Size:
16-bits
MODE
NASR
RW,
RW
RW
RW
RW
RW
RO
RO
SMSC LAN9218i
DEFAULT
XXXXb
Datasheet
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