5.2.6.5.9 16 bpp Memory Mapping with Transparency Bit, ARGB 1:5:5:5

Table 5-16. 16 bpp Memory Mapping, Little Endian Organization
Mem addr0x30x20x10x0
Bit313029282726252423222120191817161514131211109876543210
Pixel 4 bppA1R1[4:0]G1[4:0]B1[4:0]A0R0[4:0]G0[4:0]B0[4:0]