Arm Musca boards (
The Arm Musca development boards are a reference implementation of a system using the SSE-200 Subsystem for Embedded. They are dual Cortex-M33 systems.
QEMU provides models of the A and B1 variants of this board.
Note that (like the real hardware) the Musca-A machine is asymmetric: CPU 0 does not have the FPU or DSP extensions, but CPU 1 does. Also like the real hardware, the memory maps for the A and B1 variants differ significantly, so guest software must be built for the right variant.