Documentation installed by upstream build into $PREFIX along with the examples. On Windows, the documentation is a bit light but the examples are in here.

SystemC(TM) addresses the need for a system design and verification language that spans hardware and software. It is a language built in standard C++ by extending the language with the use of class libraries. The language is particularly suited to model system's partitioning, to evaluate and verify the assignment of blocks to either hardware or software implementations, and to architect and measure the interactions between and among functional blocks. Leading companies in the intellectual property (IP), electronic design automation (EDA), semiconductor, electronic systems, and embedded software industries currently use SystemC for architectural exploration, to deliver high-performance hardware blocks at various levels of abstraction and to develop virtual platforms for hardware/software co-design. SystemC has been standardized by the Open SystemC Initiative (OSCI) and Accellera Systems Initiative and ratified as IEEE Std. 1666(TM)-2011.