R
Appendix D
1000BASE-X State Machines
This appendix is intended to serve as a reference for the basic operation of the
Introduction
Table
The PCS Receive Engine performs the opposite function; it uses the Ordered Sets to detect the Ethernet frames and from them creates the GMII receive signals.
Cross reference Table
Table
Code | Ordered_Set | No. of | Encoding |
|
|
|
|
/C/ | Configuration |
| Alternating /C1/ and /C2/ |
|
|
|
|
/C1/ | Configuration 1 | 4 | /K28.5/D21.5/Config_Reg1 |
/C2/ | Configuration 2 | 4 | /K28.5/D2.2/Config_Reg1 |
/I/ | IDLE |
| Correcting /I1/, |
|
|
| Preserving /I2/ |
|
|
|
|
/I1/ | IDLE_1 | 2 | /K28.5/D5.6/ |
|
|
|
|
/I2/ | IDLE_2 | 2 | /K28.5/D16.2/ |
|
|
|
|
| Encapsulation |
|
|
|
|
|
|
/R/ | Carrier_Extend | 1 | /K23.7/ |
|
|
|
|
/S/ | Start_of_Packet | 1 | /K27.7/ |
|
|
|
|
/T/ | End_of_Packet | 1 | /K29.7/ |
|
|
|
|
/V/ | Error_Propagation | 1 | /K30.7/ |
|
|
|
|
1. Two data
Ethernet | www.xilinx.com | 211 |