Fast Ethernet , , 10 / Ethernet, . Fast Ethernet , Ethernet. .15.3.
15.3. Fast Ethernet
:
- (reconciliation sublayer);
- (Media Independent Interface, MII);
- (Physical layer device, PHY).
(PHY) , MAC- , , -.
MII MAC- PHY. AUI Ethernet' , AUI ( - ) , MII MAC- , Fast Ethernet - FX, TX T4.
, MAC MII.
MII
MII: .
, MAC , MII , , ( 15.4). PHY.
, MII MII MAC- ( 15.5). MII AUI 40 , MII 1 . , MII, 5 .
15.4. MII
15.5. MII
MII. MII 4- MAC PHY. MAC PHY 4- , , PHY, "-
", MAC-.
, PHY MAC 4- , "", PHY.
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MII. PHY , MAC " " (receive error). MAC- ( ) PHY " " (transmit error). , , PHY - " ", PHY " ".
MII. MII MAC PHY . MAC- PHY . PHY . , : (Control Register) (Status Register).
, , , - , .. (Auto-negotiation) , , , , , .
, , .
:
- 100Base-T4;
- 100Base-TX full-duplex;
- 100Base-TX half-duplex;
- 10 Mb/s full-duplex;
- 10Mb/s half-duplex;
- .