[wiki:Component SocLib Components General Index] 

= !VciAvalonBus =

== 1) Functional Description ==

This hardware component is a generic Avalon switchfabric allowing the interconnection of ''Nb_Master'' Avalon masters and ''Nb_Slave'' Avalon slaves. The master-to-slave relationship can be one-to-one, one-to-many, many-to-one, or many-to-many. Masters and slaves have the same data and address widths and  operate  in the same clock domain.

VCI-Avalon wrappers do not require to support full Avalon features, so not all Avalon slave and master ports are supported ([wiki:Component/AvalonSwitchMaster AvalonSwitchMaster], [wiki:Component/AvalonSwitchSlave AvalonSwitchSlave]).

Implemented functionnalities :
 * fundamental read, fundamental write  with variable wait-state
 * burst transfer  
 * flow control (dataavailable)
 * round robin arbitration


Unimplemented functionnalities :
 * wait state insertion
 * pipelined read transfers
 * tristate transfert
 * setup and hold time
 * dynamic bus sizing  
 * interrupt requests

== 2) Component definition & usage ==

== 3) CABA  Implementation ==

=== CABA sources ===

 * interface : source:trunk/soclib/soclib/module/network_component/avalon_switch_fabric/caba/source/include/avalon_switch_fabric.h
 * implementation : source:trunk/soclib/soclib/module/network_component/avalon_switch_fabric/caba/source/src/avalon_switch_fabric.cpp

=== CABA Constructor parameters ===

{{{
AvalonSwitchFabric (sc_module_name insname,                          // instance name
                    AvalonSwitchConfig<Nb_Master, Nb_slave> config)  // configuration
}}}

=== CABA Ports ===

 * sc_in<bool> '''p_resetn''' :                   Global system reset
 * sc_in<bool> '''p_clk''' :                      Global system clock
 * AvalonSwitch_Master *  p_avalon_master:        Nb_Master ports from Avalon masters
 * AvalonSwitch_Slave  *  p_avalon_slave:         Nb_Slave ports to Avalon slaves

== 4) TLM-T implementation ==

There is no TLM-T implementation for this component.