MEMORY CONTROL DEVICE AND MOBILE TERMINAL

摘要

To prevent tearing in a case where image data is compressed to be written into a frame memory, the present invention includes (i) a compression section (33) for compressing image data for a single frame, the image data being transferred from a host processor (2), and writing the image data into a frame memory (31), (ii) an expansion section for reading image data, expanding the image data, and transferring the image data to an LCD (4), and (iii) a delay control section (32) for, until an inhibit time period Ts passes after the start of reading image data for a first frame, inhibiting the start of writing image data.

主权项

1. A memory control device, comprising:
a frame memory having a predetermined recording capacity; a compression section for (i) compressing image data for a single frame, the image data being transferred from a host, into a size not larger than the recording capacity and (ii) writing the compressed image data into the frame memory; an expansion section for (i) reading the compressed image data from the frame memory, (ii) expanding the compressed image data, and (iii) transferring the expanded image data to a display control section; and a timing control section for, until an inhibit time period Ts passes from a start of reading compressed image data for a first frame, inhibiting a start of writing compressed image data for a second frame subsequent to the first frame, the inhibit time period Ts being so preset as to prevent coincidence between a range of a move of a read position over the frame memory and a range of a move of a write position over the frame memory.