Changes between Initial Version and Version 1 of Component/Vci Vgsb

Timestamp:

Oct 3, 2009, 3:12:47 PM (16 years ago)

Author:

alain

Comment:

--

Component/Vci Vgsb

@@ +1 @@
+[wiki:Component SocLib Components General Index] 
+
+= !VciVgsb =
+
+== 1) Functional Description ==
+
+This hardware component is a generic system bus respecting the
+VCI advanced protocol. As any bus, it supports one single transaction at a given time.
+It reproduces accurately the timing behaviour (both throughput  & latency) of
+the PIbus. 
+
+It gives the system designer a generic "communication black-box" with
+a parametrized number of VCI initiator ports (NB_INITIATOR), 
+and a parameterized number of VCI target ports (NB_TARGET).
+It can be used to build a "flat" interconnect, where
+all VCI initiators and targets are identified by a single index:
+ * The VCI targets must be indexed from 0 to (NB_TARGET - 1).
+ * The VCI initiators must be indexed from 0 to (NB_INITIATOR - 1).
+When several initiators try to use the bus, the arbitration
+policy is round-robin. 
+
+As any VCI advanced compliant interconnect, this component uses
+the MSB bits of the VCI ADDRESS field to route the command packets
+to the proper target, thanks to a routing table, implemented as a ROM.
+This routing table is build by the constructor from the informations stored in
+the [wiki:Component/MappingTable mapping table].
+
+
+== 2) Component definition and usage ==
+
+source:trunk/soclib/soclib/module/network_component/vci_vgsb/caba/metadata/vci_vgsb.sd
+
+See [wiki:SoclibCc/VciParameters SoclibCc/VciParameters]
+{{{
+Uses( 'vci_vgsb', **vci_parameters )
+}}}
+
+== 3) CABA  Implementation ==
+
+=== CABA sources ===
+
+ * interface : source:trunk/soclib/soclib/module/network_component/vci_vgsb/caba/source/include/vci_vgsb.h
+ * implementation : source:trunk/soclib/soclib/module/network_component/vci_vgsb/caba/source/src/vci_vgsb.cpp
+
+=== CABA Constructor parameters ===
+
+{{{
+VciVgmn(
+     sc_module_name name,                    //  instance name
+     const soclib::common::MappingTable &mt, // mapping table
+     size_t nb_initiator,                    // number of initiators
+     size_t nb_target);                      // number of targets
+}}}
+
+=== CABA Ports ===
+
+ * sc_in<bool> '''p_resetn''' : Global system reset
+ * sc_in<bool> '''p_clk''' : Global system clock
+ * soclib::caba::!VciTarget<vci_param> '''p_from_initiator[]''' : Ports from VCI initiators
+ * soclib::caba::!VciInitiator<vci_param> '''p_to_target[]''' : Ports to VCI targets
+
+== 4) TLM-T  Implementation ==
+
+Not available