s4noc: README

Author: schoeberl

README.md

@@ -139,6 +139,8 @@ Additionally, for the S4NOC we provide following port:
 
 ### S4NOC
 
+See more details in [S4NoC.md](S4NoC.md)
+
 The network interface and the S4NOC are written in Chisel and the
 source can be found in [s4noc](src/main/scala/s4noc)
 

S4NoC.md

@@ -0,0 +1,63 @@
+# The S4NoC Network-on-Chip
+
+ * Message passing
+ * All-to-all communication
+ * TDM scheduling - no handshaking 
+   - Time-predictable
+   - When receiver cannot catch up, messages are dropped
+ * Simple memory mapped interface
+   - status register (TX empty, RX full)
+   - data register (TX data, RX data)
+   - destination/source register (TX destination, RX source)
+ * See [README of example](https://github.com/t-crest/patmos/tree/master/c/apps/s4noc) for an example
+
+## Publications
+
+```bibtex
+@INPR@INPROCEEDINGS{t-crest:s4noc,
+author = {Martin Schoeberl and Florian Brandner and Jens Spars{\o} and Evangelia
+	Kasapaki},
+title = {A Statically Scheduled Time-Division-Multiplexed Network-on-Chip
+	for Real-Time Systems},
+booktitle = {Proceedings of the 6th International Symposium on Networks-on-Chip
+	(NOCS)},
+year = {2012},
+pages = {152--160},
+address = {Lyngby, Denmark},
+month = {May},
+publisher = {IEEE},
+doi = {10.1109/NOCS.2012.25},
+url = {http://www.jopdesign.com/doc/s4noc.pdf}
+}
+```
+
+```bibtex
+@InProceedings{s4noc:ni:isorc2024,
+  author    = {Martin Schoeberl},
+  booktitle = {Proceedings of the 2024 IEEE 27th International Symposium on Real-Time Distributed Computing (ISORC)},
+  title     = {Exploration of Network Interface Architectures for a Real-Time Network-on-Chip},
+  year      = {2024},
+  address   = {United States},
+  note      = {2024 IEEE 27th International Symposium on Real-Time Distributed Computing, ISORC ; Conference date: 22-05-2024 Through 25-05-2024},
+  publisher = {IEEE},
+  doi       = {10.1109/ISORC61049.2024.10551364},
+  isbn      = {979-8-3503-7129-1},
+}
+```
+
+```bibtex
+
+```
+## Description
+
+The S4NoC is a message passing network-on-chip (NoC) with an all-to-all
+communication pattern. S4NoC uses TDM scheduling to be time-predictable.
+
+The network interface and the S4NOC are written in Chisel and the
+source can be found in [s4noc](src/main/scala/s4noc)
+
+The tests can run from the current folder with a plain
+
+```
+sbt test
+```