VBR=B_0x0, IMR=B_0x0, GRMSK=B_0x0
LTDC layerx reload control register
| IMR | immediate reload trigger 0 (B_0x0): no effect 1 (B_0x1): The shadow registers are reloaded immediately.  |  
| VBR | vertical blanking reload request 0 (B_0x0): no effect 1 (B_0x1): The shadow registers are reloaded during the vertical blanking period (at the beginning of the first line after the active display area).  |  
| GRMSK | shadow reload control, global (centralized) reload masked 0 (B_0x0): global reload active for this layer (control from LTDC_SRCR enabled) 1 (B_0x1): global reload masked for this layer (control from LTDC_SRCR disabled)  |