Non-technical point release:
The following documents have been updated, to reflect changes to the copyright. No technical changes have been performed.
S4000P Issue 2.2, April 2023, PDF, 11.8 MBytes
S-Series 2021 block release:
The specification S4000P Issue 2.1 can be downloaded for free using the following link:
S4000P Issue 2.1, April 2021, PDF, 7.75 MBytes
S4000P Issue 2.0, August 2018, PDF, 8.4 MBytes
S4000P Issue 1.0, May 2014, PDF, 2.6 MBytes