MOTOROLA
Chapter 30. Fast Ethernet Controller
30-3
Part IV. Communications Processor Module
Figure 30-2. Ethernet Block Diagram
30.2 Features
The following is a list of Fast Ethernet key features:
¥
Support for Fast Ethernet through the MII (media-independent interface)
¥
Performs MAC (media access control) layer functions of Fast Ethernet and IEEE
802.3x
¥
Performs framing functions
Ñ Preamble generation and stripping
Ñ Destination address checking
Ñ CRC generation and checking
Ñ Automatic padding of short frames on transmit
Ñ Framing error (dribbling bits) handling
¥
Full collision support
Ñ Enforces the collision (jamming and TX_ER assertion)
Ñ Truncated binary exponential backoff algorithm for random wait
Ñ Two nonaggressive backoff modes
Ñ Automatic frame retransmission (until retry limit is reached)
Ñ Automatic discard of incoming collided frames
Ñ Delay transmission of new frames for speciÞed interframe gap
¥
Bit rates up to 100 Mbps
¥
Receives back-to-back frames
¥
Detection of receive frames that are too long
Shifter
Receive
Receiver
Control
UNIT
FIFO
Shifter
Transmit
Transmitter
Control
Unit
FIFO
Slot Time
Clock
Generator
Internal Clocks
Control
Registers
TXD[3Ð0]
RXD[3Ð0]
Peripheral Bus
60x-Bus
Data
Data
RX_CLK
TX_CLK
And Defer
Counter
TX_ER
Random No.
CRS
CRS
COL
RX_ER
TX_EN
COL
RX_DV
Summary of Contents for MPC8260 PowerQUICC II
Page 1: ...MPC8260UM D 4 1999 Rev 0 MPC8260 PowerQUICC II UserÕs Manual ª ª ...
Page 66: ...lxvi MPC8260 PowerQUICC II UserÕs Manual MOTOROLA ...
Page 88: ...1 18 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part I Overview ...
Page 120: ...2 32 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part I Overview ...
Page 138: ...Part II iv MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part II Configuration and Reset ...
Page 184: ...4 46 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part II ConÞguration and Reset ...
Page 202: ...Part III vi MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
Page 266: ...8 34 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
Page 382: ...10 106 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
Page 392: ...11 10 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part III The Hardware Interface ...
Page 430: ...Part IV viii MOTOROLA Part IV Communications Processor Module ...
Page 490: ...14 36 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 524: ...17 10 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 556: ...18 32 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 584: ...19 28 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 632: ...21 24 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 652: ...22 20 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 668: ...23 16 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 758: ...27 28 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 780: ...28 22 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 874: ...29 94 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 920: ...31 18 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Part IV Communications Processor Module ...
Page 980: ...A 4 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA Appendixes ...
Page 1002: ...Index 22 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA INDEX ...
Page 1006: ......