Manual
Page 53
...Driver STAT shows the current status of the LCD controller. Mode Flag 00: During H-Blank 01: During V-Blank 10: During Searching OAM-RAM 11: During Transfering Data to LCDC LY 1: LYC = LCDC LY Bit 1-0 - Mode 01: When the flag is 01...Bit 2 - Mode 10: When the flag is 10 then the OAM is being used ($FE00-$FE9F). Mode 01 Bit 3 - Mode 00: When the flag is 00 it is the H-Blank period and the CPU can... following are typical when the display is 11 both the OAM and display RAM are being used . Game BoyTM CPU Manual 2.13.1. Mode 10 Bit 4 - The CPU cannot access the OAM during this...
...Driver STAT shows the current status of the LCD controller. Mode Flag 00: During H-Blank 01: During V-Blank 10: During Searching OAM-RAM 11: During Transfering Data to LCDC LY 1: LYC = LCDC LY Bit 1-0 - Mode 01: When the flag is 01...Bit 2 - Mode 10: When the flag is 10 then the OAM is being used ($FE00-$FE9F). Mode 01 Bit 3 - Mode 00: When the flag is 00 it is the H-Blank period and the CPU can... following are typical when the display is 11 both the OAM and display RAM are being used . Game BoyTM CPU Manual 2.13.1. Mode 10 Bit 4 - The CPU cannot access the OAM during this...
Manual
Page 55
... 36. FF45 (LYC) Name - LY Compare (R/W) The LYC compares itself with the LY. Scroll X (R/W) 8 Bit value $00-$FF to the LCD Driver. LCDC Y-Coordinate (R) The LY indicates the vertical line to which the present data is transferred to scroll BG X screen position. 35. The LY can take... the V-Blank period. If the values are the same it causes the STAT to the OAM (address $FE00-$FE9F) by DP Page 55 DMA Contents - Game BoyTM CPU Manual 2.13.1. SCX Contents - FF43 (SCX) Name - LY Contents - The values between 0 through 153. I/O Registers 34. LYC Contents - FF46 (...
... 36. FF45 (LYC) Name - LY Compare (R/W) The LYC compares itself with the LY. Scroll X (R/W) 8 Bit value $00-$FF to the LCD Driver. LCDC Y-Coordinate (R) The LY indicates the vertical line to which the present data is transferred to scroll BG X screen position. 35. The LY can take... the V-Blank period. If the values are the same it causes the STAT to the OAM (address $FE00-$FE9F) by DP Page 55 DMA Contents - Game BoyTM CPU Manual 2.13.1. SCX Contents - FF43 (SCX) Name - LY Contents - The values between 0 through 153. I/O Registers 34. LYC Contents - FF46 (...