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

Timestamp:

Feb 6, 2014, 6:39:58 PM (12 years ago)

Author:

alain

Comment:

--

Component/Vci Iopic

@@ +1 @@
+[wiki:Component SocLib Components General Index] 
+
+= !VciIopic =
+
+== 1) Functional Description ==
+
+This component is a multi-channels, programmable, Hardware Interrupt  to Software Interrupt translator. It can be used to translate a variable number of hardware interrupt lines (HWI) to the same number of write triggered interrupt (SWI) that can be handled by a !VciXicu component. It acts as a VCI initiator, to send a single flit VCI packet to the target interrupt controller, when a rising edge is detected on a given HWI input. It acts also as a memory mapped VCI target, as the addresses of the WTI associated to a given HWI must be configured by the software.
+
+=== 1.1) Programmer's view ===
+
+For each HWI channel, there is three 32 bits addressable registers:
+
+'''IOPIC_ADDRESS''' This READ/WRITE register contains the 32 LSB bits of the physical WTI address associated to the HWI channel.
+
+'''IOPIC_EXTEND''' This READ/WRITE register contains the 32 MSB bits of the physical WTI address associated to the HWI channel.
+
+'''IOPIC_STATUS''' This READ-ONLY register register contains the HWI channel status. Only the two LSB bits are significant:
+ * Bit 0 : HWI line current value.
+ * Bit 1 : Error reported in a WTI transaction when tis bit is set.
+Any read access to the IOPIC status register reset the ERROR bit.
+
+== 2) Component definition & usage
+
+source:trunk/soclib/module/infrastructure_component/interrupt_infrastructure/vci_iopic/caba/metadata/vci_iopic.sd
+
+{{{
+Uses( 'vci_iopic' )
+}}}
+
+== 3) CABA  Implementation ==
+
+=== CABA sources ===
+
+ * interface : source:trunk/soclib/soclib/module/infrastructure_component/interrupt_infrastructure/vci_iopic/caba/source/include/vci_iopic.h
+ * implementation : source:trunk/soclib/soclib/module/infrastructure_component/interrupt_infrastructure/vci_iopic/caba/source/src/vci_iopic.cpp
+
+=== CABA Constructor parameters ===
+{{{ 
+VciIopic(
+     sc_module_name name,  // Component Name
+     const soclib::common::MappingTable &mt,  // Mapping Table
+     const soclib::common::IntTab &srcid, // Initiator index
+     const soclib::common::IntTab &tgtid, // Target index
+     const size_t channels );   // Number of HWI channels (inputs)
+}}}
+
+=== CABA Ports ===
+
+ * sc_in<bool> '''p_clk''' : Global system clock
+ * sc_in<bool> '''p_resetn'''  : Global system reset
+ * soclib::caba::!VciInitiator<vci_param> '''p_vci_initiator''' : VCI initiator port
+ * soclib::caba::!VciTarget<vci_param> '''p_vci_target''' : VCI target port
+ * sc_in<bool> *'''p_hwi''' : Input interrupts ports array