SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
This subsequence describes the video layer settings available at the pipeline level necessary when using the overlay manager (see Table 13-100).
Step | Register/Bit Field/Programming Model | Value |
---|---|---|
Set the LCD/TV output. | DISPC_GFX_ATTRIBUTES[8] CHANNELOUT | 0x– |
If DISPC_GFX_ATTRIBUTES[8] = 0, set the LCD output. | DISPC_GFX_ATTRIBUTES[31:30] CHANNELOUT2 | 0x– |
Set the Z-order priority of the layer for overlay manager. | DISPC_GFX_ATTRIBUTES[27:26] ZORDER | 0x– |
Enable the video pipeline Z-order. | DISPC_GFX_ATTRIBUTES[25] ZORDERENABLE | 0x– |
Set the Global Alpha value for the alpha blender unit. | DISPC_GLOBAL_ALPHA[7:0] GFXGLOBALALPHA | 0x– |