RM0383 Rev 3 seems to have some errors in Chapter 22 USB on-the-go full-speed (OTG_FS)
In P687, right bottom part of Figure 248, it says "GRXFSIZ[31:16]", while P715 says that GRXFSIZ[31:16] is "Reserved, must be kept at reset value.".Besides, also in Figure 248, it says "GNPTXFSIZ", but there is no such register in this Reference Manu...