SEGA SATURN DEVELOPER'S MANUAL

● Register: Set each function of VDP2.
∙ After turning on the power or resetting, the value is cleared to 0 in most registers, so be sure to set the value.
∙ Read / write access from the CPU or DMA controller is always possible, but the image may be confused depending on the access timing.
∙ Access by CPU or DMA controller is only possible in word units and long word units. It cannot be accessed in byte units.