DescriptionResetTypeNameBit/Field
Fast Auto MDI/MDIX
If both link partners are configured to work in Force 100Base-TX mode
(auto-negotiation is disabled), this mode enables automatic MDI/MDIX
resolution in a short time.
DescriptionValue
Normal Auto MDI/MDIX mode.0
Enable Fast Auto MDI/MDIX mode.1
0RWFAMDIX6
Robust Auto MDI/MDIX
If link partners are configured to operational modes that are not
supported by normal Auto MDI/MDIX mode (like Auto-Neg versus Force
100Base-TX or Force 100Base-TX versus Force 100Base-TX), this
Robust Auto MDI/MDIX mode allows MDI/MDIX resolution and prevents
deadlock.
DescriptionValue
Normal Auto MDI/MDIX mode.0
Enable Robust Auto MDI/MDIX resolution.1
0RWRAMDIX5
Fast Auto Negotiation Enable
Adjusting these bits reduces the time it takes to auto-negotiate between
two PHYs.
Note: When using this option care must be taken to maintain proper
operation of the system. While shortening these timer intervals
may not cause problems in normal operation, there are certain
situations where this may lead to problems.
DescriptionValue
Disable Fast Auto-Negotiation mode
The PHY auto-negotiates using the normal timer setting
0
Enable Fast Auto-Negotiation mode
The PHY auto-negotiates using the timer setting according to
the FANSEL bits (bits [3:2] of this register)
1
0RWFASTANEN4
1607June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller
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