Nintendo DMG-01 - Game Boy Console Manual page 52

2.13.1. I/O Registers
Bit 6 - Window Tile Map Display Select
Bit 5 - Window Display
Bit 4 - BG & Window Tile Data Select
Bit 3 - BG Tile Map Display Select
Bit 2 - OBJ (Sprite) Size
Bit 1 - OBJ (Sprite) Display
Bit 0 - BG & Window Display
* - Stopping LCD operation (bit 7 from 1 to 0) must
be performed during V-blank to work properly. V-
blank can be confirmed when the value of LY is
greater than or equal to 144.
32. FF41 (STAT)
Name
Contents - LCDC Status
Bits 6-3 - Interrupt Selection By LCDC Status
Page 52
0: Stop completely (no picture on screen)
1: operation
0: $9800-$9BFF
1: $9C00-$9FFF
0: off
1: on
0: $8800-$97FF
1: $8000-$8FFF <- Same area as OBJ
0: $9800-$9BFF
1: $9C00-$9FFF
0: 8*8
1: 8*16 (width*height)
0: off
1: on
0: off
1: on
- STAT
Game Boy
(R/W)
TM
CPU Manual
V 1.01