SM8521 Datasheet, PDF (35/56 Pages) Sharp Electrionic Components – 8-Bit Single-Chip Microcomputer

DMA Transfer
• ROM to VRAM transfer mode
Y1
X1
256-dot
DY
DX
256-dot
ROM
Y2
160/200-dot
X2
Also, transfers between VRAMs.
• VRAM to VRAM transfer mode
160/200-dot
VRAM
Y2
X1
X2
Y1
DY
160/200-dot
DX
160/200-dot
VRAM
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SM8521