Patent ID: 7064764

Claim:
A liquid crystal display control device comprising: a CPU_I/F section controlled by a control signal, which interfaces with a CPU; a video memory which stores data from the CPU passing through the CPU_IF section; a memory control section controlled by the control signal, which performs access control for said video memory,such as to enable either the data from the CPU passing through the CPU_IF section to be written to the video memory or data stored in the video memory to be read out, wherein the memory cintrol section is connected directly between the CPU_IF section and the video memory; a FIFO section controlled by the control signal, which connects to said memory control section, and which stores the data read out from the video memory; a palette section controlled by the control signal, which connects to the FIFO section, and which reads out the data stored in the FIFO section and converts the same into color data for displaying on a liquid crystal display; and a controller generating the control signal, which allows said video memory to store the data from the CPU passing through the CPU_IF section, regardless of whether the data stored in said FIFO section is being read out by the palette section, when said FIFO section is not empty, and which inhibits storing of the data from the CPU in said video memory when said FIFO section is empty.