Documentation improvements

.github/workflows/Simulate.yml

@@ -110,7 +110,7 @@ jobs:
     continue-on-error: ${{ inputs.can-fail }}
     steps:
       - name: ⏬ Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           lfs: true
           submodules: true
@@ -216,7 +216,7 @@ jobs:
     continue-on-error: ${{ inputs.can-fail }}
     steps:
       - name: ⏬ Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           lfs: true
           submodules: true

.gitignore

@@ -39,6 +39,9 @@ tb/common/my_project.vhdl
 
 
 # ignore external tool files: ActiveHDL, QuestaSim
+/.sigasi/**/
+!/.sigasi/project.sigasi
+
 /prj/ActiveHDL/*
 /prj/ActiveHDL/*.*
 /prj/ActiveHDL/**/*.*

docs/Glossary.rst

@@ -0,0 +1,95 @@
+Glossary
+########
+
+.. glossary::
+
+   AMBA
+     tbd
+
+   AXI4
+     tbd
+
+   AXI4-Lite
+     tbd
+
+   AXI4-Stream
+     tbd
+
+   Edge interrupt
+     tbd
+
+     See also: :term:`Level interrupt`, :term:`strobe`
+
+   Elaboration time
+     tbd
+
+   FIFO
+     First-in first-out
+
+   Flag
+     A longtime stable signal.
+
+     See also: :term:`strobe`
+
+   FPGA
+     Field Programmable Gate Array
+
+   I²C
+     tbd
+
+   I²S
+     tbd
+
+   Interrupt
+     See also: :term:`IRQ`
+
+   IRQ
+     Interrupt Request
+
+     See also: :term:`ISR`
+
+   ISR
+     Interrupt Service Routine
+
+     See also: :term:`IRQ`
+
+   Level interrupt
+     tbd
+
+     See also: :term:`Edge interrupt`, :term:`flag`
+
+   LIFO
+     Last-in first-out
+
+     See :term:`Stack`
+
+   MMR
+     See :term:`Memory-mapped-register`
+
+   Memory-mapped-register
+     tbd
+
+   MPSoC
+     tbd
+
+   RS-232
+     tbd
+
+     See also: :term:`UART`
+
+   SoC
+     System-on-a-Chip
+
+   SPI
+     Serial Peripheral Interface
+
+   Stack
+     tbd
+
+   Strobe
+     A signal active for one clock cycle.
+
+     See also: :term:`flag`
+
+   UART
+     Universal Asynchronous Receiver Transmitter

docs/IPCores/bus/axi4/axi4_FIFO.rst

@@ -0,0 +1,170 @@
+.. _IP/axi4_FIFO:
+.. index::
+   single: AXI4; axi4_FIFO
+
+axi4_FIFO
+#########
+
+
+Based on :ref:`IP/fifo_cc_got`
+
+
+.. _IP/axi4_FIFO/goals:
+
+.. topic:: Design Goals
+
+   * tbd
+
+
+.. _IP/axi4_FIFO/features:
+
+.. topic:: Features
+
+   * tbd
+
+
+.. _IP/axi4_FIFO/instantiation:
+
+Instantiation
+*************
+
+.. grid:: 2
+
+   .. grid-item::
+      :columns: 5
+
+      .. todo:: needs documentation
+
+   .. grid-item-card::
+      :columns: 7
+
+      .. code-block:: vhdl
+
+         FIFO : entity PoC.axi4_FIFO
+         generic map (
+           FRAMES => 16
+         )
+         port map (
+           Clock   => Clock,
+           Reset   => Reset,
+
+           In_m2s  => Source_m2s,
+           In_s2m  => Source_s2m
+
+           Out_m2s => FIFO_m2s,
+           Out_s2m => FIFO_s2m
+         );
+
+
+.. _IP/axi4_FIFO/interface:
+
+Interface
+*********
+
+.. _IP/axi4_FIFO/generics:
+
+Generics
+========
+
+.. _IP/axi4_FIFO/gen/FRAMES:
+
+:generic:`FRAMES`
+-----------------
+
+:Name:          :generic:`FRAMES`
+:Type:          :type:`positive`
+:Default Value: ``2``
+:Description:   tbd
+
+
+.. _IP/axi4_FIFO/ports:
+
+Ports
+=====
+
+.. _IP/axi4_FIFO/port/Clock:
+
+:port:`Clock`
+-------------
+
+:Name:          ``Clock``
+:Type:          ``std_logic``
+:Mode:          in
+:Default Value: — — — —
+:Description:   Clock
+
+
+.. _IP/axi4_FIFO/port/Reset:
+
+:port:`Reset`
+-------------
+
+:Name:          ``Reset``
+:Type:          ``std_logic``
+:Mode:          in
+:Default Value: — — — —
+:Description:   synchronous high-active reset
+
+
+.. _IP/axi4_FIFO/port/In_m2s:
+
+:port:`In_m2s`
+--------------
+
+:Name:          ``In_m2s``
+:Type:          ``axi4.T_AXI4_Bus_m2s``
+:Mode:          in
+:Default Value: — — — —
+:Description:   AXI4-Lite manager to subordinate signals.
+
+
+.. _IP/axi4_FIFO/port/In_s2m:
+
+:port:`In_s2m`
+--------------
+
+:Name:          ``In_s2m``
+:Type:          ``axi4.T_AXI4_Bus_s2m``
+:Mode:          out
+:Default Value: — — — —
+:Description:   AXI4-Lite subordinate to manager signals.
+
+
+.. _IP/axi4_FIFO/port/Out_m2s:
+
+:port:`Out_m2s`
+---------------
+
+:Name:          ``Out_m2s``
+:Type:          ``axi4.T_AXI4_Bus_m2s``
+:Mode:          out
+:Default Value: — — — —
+:Description:   AXI4-Lite manager to subordinate signals.
+
+
+.. _IP/axi4_FIFO/port/Out_s2m:
+
+:port:`Out_s2m`
+---------------
+
+:Name:          ``Out_s2m``
+:Type:          ``axi4.T_AXI4_Bus_s2m``
+:Mode:          in
+:Default Value: — — — —
+:Description:   AXI4-Lite subordinate to manager signals.
+
+
+.. _IP/axi4_FIFO/configuration:
+
+Configuration
+*************
+
+.. todo:: tbd
+
+
+.. _IP/axi4_FIFO/UsedIn:
+
+Use in
+******
+
+* tbd