The VFP11 coprocessor is integrated with an ARM1136JF-S processor through a dedicated VFP coprocessor interface.

The VFP11 coprocessor uses coprocessor ID number 10 for single-precision instructions and coprocessor ID number 11 for double-precision instructions. In some cases, such as mixed-precision instructions, the coprocessor ID represents the destination precision. In a system containing a VFP11 coprocessor, coprocessor IDs 10 and 11 must not be used by any other coprocessor.

The ARM1136JF-S Coprocessor Access Control Register controls access to the VFP11 coprocessor. You must configure the coprocessor access rights correctly before executing any VFP11 instructions. For more information see the ARM1136JF-S and ARM1136J-S Technical Reference Manual.