Achronix Speedster22i Interlaken - Manual (Page 3)

Table of Contents
Copyright Info .................................................................................. 2
Table of Contents ............................................................................ 3
Introduction ..................................................................................... 6
Design Overview ............................................................................. 8
Hierarchy ........................................................................................................... 9
Typical Operation ............................................................................................ 10
Flow Control .......................................................................................................... 10
Start-Up Procedure ................................................................................................ 10
Clocking .......................................................................................................... 12
TX LBUS Interface .......................................................................................... 25
Data Formatting ..................................................................................................... 26
Packet Mode ......................................................................................................... 26
Segment Mode ...................................................................................................... 26
Use of tx_bctlin ...................................................................................................... 27
RX LBUS Interface .......................................................................................... 28
Status/Control Interface ................................................................................... 30
RX Meta Frame Status .......................................................................................... 30
RX Error Status ..................................................................................................... 31
CRC32 Diagnostics Checking................................................................................ 33
Interlaken Status Messaging for the Receiver ........................................................ 33
Interlaken Status Messaging for the Transmitter .................................................... 34
Transmitter Multiple-Use Bits ................................................................................. 34
Receiver Multiple-Use Bits ..................................................................................... 34
Transmitter Flow-Control Inputs ............................................................................. 35
Register Interface ............................................................................................ 36
Description of Features ................................................................ 45
Lane Decommission ........................................................................................ 45
Disabling Consecutive Lanes................................................................................. 45
Consecutive Transmit Lanes ............................................................................................ 45
Consecutive Receive Lanes ............................................................................................. 45
Disabling a Single Lane ......................................................................................... 46
Single Transmit Lane ........................................................................................................ 46
Single Receive Lane ......................................................................................................... 46
Link Level Flow Control ................................................................................... 47
UG032, May 15, 2014 3