| 1 | [wiki:Component SocLib Components General Index] |
| 2 | |
| 3 | = !VciLocalRingFast = |
| 4 | |
| 5 | == 1) Functional Description == |
| 6 | This hardware component is a VCI compliant ring, implemented as a combinational daisy-chain and well suited for FPGA implementations. It must only be used in clusterized architecture, to interconnect a limited number of VCI initiators and targets in a local sub-system. |
| 7 | |
| 8 | Policy arbitration uses a circulating token which allows the wrappers to access the ring in a round-robin fashion. |
| 9 | |
| 10 | == 2) Component definition & usage == |
| 11 | |
| 12 | source:trunk/soclib/soclib/module/network_component/vci_local_ring_fast/caba/metadata/vci_local_ring_fast.sd |
| 13 | |
| 14 | == 3) CABA implementation == |
| 15 | |
| 16 | === CABA sources === |
| 17 | |
| 18 | * interface : source:trunk/soclib/soclib/module/network_component/vci_local_ring_fast/caba/source/include/vci_local_ring_fast.h |
| 19 | * implementation : source:trunk/soclib/soclib/module/network_component/vci_local_ring_fast/caba/source/src/vci_local_ring_fast.cpp |
| 20 | |
| 21 | === CABA Constructor parameters === |
| 22 | |
| 23 | {{{ |
| 24 | VciLocalRingNetwork( sc_module_name insname, // instance name |
| 25 | const soclib::common::MappingTable &mt, // mapping table |
| 26 | const soclib::common::IntTab &ringid, // global subsystem index |
| 27 | const int &wrapper_fifo_depth, // wrapper fifo depth |
| 28 | const int &half_gateway_fifo_depth, // half gateway fifo depth |
| 29 | int nb_attached_initiator, // number of VCI initiators |
| 30 | int nb_attached_target); // number of VCI targets |
| 31 | }}} |
| 32 | |
| 33 | |
| 34 | === CABA ports === |
| 35 | |
| 36 | * sc_in<bool> p_clk; // Global system clock |
| 37 | * sc_in<bool> p_resetn; // Global system reset |
| 38 | * soclib::caba::!VciInitiator<vci_param>* p_to_target; // Ports to VCI targets |
| 39 | * soclib::caba::!VciTarget<vci_param> * p_to_initiator; // Ports to VCI initiators |
| 40 | * soclib::caba::!GateInitiator p_gate_initiator; // Port to gate target |
| 41 | * soclib::caba::!GateTarget p_gate_target; // Port to gate initiator |
| 42 | |
| 43 | == 4) TLMT implementation == |
| 44 | |
| 45 | The TLM-T implementation is not available yet. |