What are the typical RAM requirements for MicroC/OS II on Nios II?

Thanks. That documentation doesn't directly answer the question, but I followed your suggestion to look further at the Using MicroC/OS-II RTOS with the Nios II Processor Tutorial. It uses the hardware from the Nios II Ethernet Standard Design Example, which appears to use an external 32 MB SDRAM chip. I certainly don't have nearly that much RAM. The Nios II Ethernet Standard Design Example is available for various development boards, and I think they all have external SDRAM, which leaves me to question if MicroC/OS-II RTOS can even run at all with only on-chip memory.