| 摘要 |
The circuit provides various shape cursor patterns that user can select and change with a mouse in CD-I system. The circuit comprises: a mouse (10) conneting to a CPU (30) through an interrupt controller (20), a main memory (40) storing cursor patterns, a video system controller (50) connected to a data line which is between a CPU and a video system controller, a video compounding decoder (60) sending video signal connected to the output from the video system controller and containing cusor pattern RAM. |
