ST STM32L4+ Series Reference Manual page 446

Chrom-ART Accelerator controller (DMA2D)
ARGB8888 or RGB888 color mode
Bits 31:24 ALPHA[7:0]: Alpha channel value in ARGB8888 mode otherwise reserved
Bits 23:16 RED[7:0]: Red value in ARGB8888 or RGB888 mode otherwise reserved
Bits 15:8 GREEN[7:0]: Green value in ARGB8888 or RGB888
Bits 7:0 BLUE[7:0]: Blue value in ARGB8888 or RGB888
RGB565 color mode
Bits 15:11 RED[4:0]: Red value in RGB565 mode
Bits 12:5 GREEN[5:0]: Green value in RGB565 mode
Bits 4:0 BLUE[4:0]: Blue value in RGB565 mode
ARGB1555 color mode
Bit 15 A: Alpha channel value in ARGB1555 mode
Bits 14:10 RED[4:0]: Red value in ARGB1555 mode
Bits 9:5 GREEN[4:0]: Green value in ARGB1555 mode
Bits 4:0 BLUE[4:0]: Blue value in ARGB1555 mode
ARGB4444 color mode
Bits 15:12 ALPHA[3:0]: Alpha channel value in ARGB4444
446/2301
These bits define the alpha channel of the output color. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the red value of the output image. These bits can only be written when
data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the green value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the blue value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the red value of the output image. These bits can only be written when
data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the green value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the blue value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
This bit defines the alpha channel of the output color. This bit can only be written when
data transfers are disabled. Once the transfer has started, it is read-only.
These bits define the red value of the output image. These bits can only be written when
data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the green value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
These bits define the blue value of the output image. These bits can only be written
when data transfers are disabled. Once the transfer has started, they are read-only.
This bit defines the alpha channel of the output color. This bit can only be written when
data transfers are disabled. Once the transfer has started, it is read-only.
RM0432 Rev 6
RM0432