CORE-V Instruction Set Extensions

Custom instructions

CV32E40X supports the custom instruction(s) listed in Table 28.

Table 28 Custom instructions
Custom instruction	Encoding	Description
`wfe`	0x8C00_0073	Wait For Event, see WFE.

Further custom instructions can be added external to the core via the eXtension interface described in eXtension Interface.

CV32E40X does not contain custom CSRs.