mc9s12ne64 Freescale Semiconductor, Inc, mc9s12ne64 Datasheet - Page 357

• Manufacturer Part Number: mc9s12ne64
• Description: Hcs12 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

100XHD —100BASE-TX Half-Duplex
10TFD —10BASE-T Full-Duplex
10THD —10BASE-T Half-Duplex
SUPPRE —MF Preamble Suppression
ANCOMP —Auto-Negotiation Complete
REMFLT — Remote Fault
ANABL — Auto-Negotiation Ability
LNKSTST — Link Status
Freescale Semiconductor
To inform the management interface (MI) that it has completed processing, ANCOMP is set by the
A/N process. After it has been started, the auto-negotiation process uses link code words to exchange
capability information and establish the highest common denominator (HCD) for link transactions.
Possible remote faults (RF)
After it is set, REMFLT is cleared each time register 1 is read via the management interface. REMFLT
is also cleared by a PHY reset.
The PHY sets this bit when it determines that a valid link has been established. The occurrence of a
link failure will cause LNKSTST to be cleared. After it has been cleared, it remains cleared until it is
read via the management interface.
1 = Indicates the PHY supports 100BASE-TX half-duplex mode
0 = Indicates the PHY does not support 100BASE-TX half-duplex mode
1 = Indicates the PHY supports 10BASE-T full-duplex mode
0 = Indicates the PHY does not support 10BASE-T full-duplex mode
1 = Indicates the PHY supports 10BASE-T half-duplex mode
0 = Indicates the PHY does not support 10BASE-T half-duplex mode
1 = Indicates that management frames are not required to contain the preamble stream
0 = Indicates that management frames are required to contain the preamble stream
1 = Indicates that the auto-negotiation process has completed and that the contents of registers 4
0 = Indicates that the auto-negotiation process has not completed and that the contents of registers
1 = Indicates that a remote fault condition has been detected.
0 = No fault detected
1 = Indicates that PHY has auto-negotiation ability
0 = Indicates that PHY does not have auto-negotiation ability
1 = Indicates a valid link has been established
0 = Indicates a valid link has NOT been established
a) The link partner transmits the RF bit (5.13=1)
b) Link partner protocol is not 00001 (5.4:0)
c) Link partner advertises only T4 capability (5.9:5)
d) No common operation mode found between PHY and the link partner.
through 7 are valid.
4 through 7 are not valid
MC9S12NE64 Data Sheet, Rev. 1.1
Memory Map and Register Descriptions
357