| 摘要 |
PROBLEM TO BE SOLVED: To provide a Pachinko game machine which enables one screen of correct drawing data to be drawn and displayed on a liquid crystal display device though affected by noises. SOLUTION: Each time the output of a DMA execution signal DMAFLAG from a VDP 1750c is stopped, a liquid crystal control MPU 1750a writes set values of: a field 1750g [0] write start address register to a field 1750g [3] write start address register; and a field 1750g [0] reading start address register to a field 1750g [2] reading start address register; as a group of registers 1750fa of a scaler IC1750f by a DMAFLAG interruption processing. In other words, the set values are overwritten per 16 ms in the DMAFLAG interruption, thereby drawing and displaying the one screen of the correct drawing data on the liquid crystal display device 1315 though affected by noises. COPYRIGHT: (C)2009,JPO&INPIT |
