Nintendo GAME BOY Programming Manual page 74

Game Boy Programming Manual
ADDRESS
NAME
BCPS
FF68
BCPD FF69
OCPS FF6A
OCPD FF6B
Note: These registers cannot be written to in DMG mode.
BIT
R/W
Specifies H/L (H: 1, L: 0)
Specifies the palette data no.
Specifies the palette no.
1: With each write, specifies the next
palette
0: Values of bits 0-5 fixed
R/W
R/W
Specifies H/l (H: 1; L: 0)
Specifies the palette data no.
Specifies the palette no.
1: With each write, specifies the next
palette
0: Values of bits 0-5 fixed
R/W
74
Specifies a BG write
Specifies the BG write
data
Specifies the OBJ write data
OBJ write data