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Section 27 Video Display Controller 3
R01UH0134EJ0400 Rev. 4.00 Page 1561 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
27.6.2 Video Recording Function
This module stores the captured video in the RGB565 format at a 1/2-field rate (NTSC: 30 fps;
PAL: 25 fps) (video recording function) after contrast and brightness adjustment. For the
capturing function, refer to section 27.6.1 (1), Capturing.
The destination address of recording is calculated according to the register settings of the base
address, line offset, field offset, and number of fields to be stored. After data has been written for
the specified number of fields, the memory is overwritten by new video from the first address. The
current field number being written can be monitored through the status register. After one field of
video data is written, an interrupt is sent to the CPU to indicate the completion of writing.
DV_CLK
Captured video
(example of video data after horizontal size reduction to 1/2)
Video area TOP
Skipped field BOTTOM
TOP
BOTTOM
Skipped field BOTTOM
Video area TOP
BT.656 code
DV_HSYNC
FF
RGB00
RGB10
RGB20
RGB01
RGB11
RGB21
00 00 EAV
. . .
. . .
. . .
RGB80 RGB81
. . .
Video area TOP
RGB40 RGB41
. . .
Field
Figure 27.9 Correspondence between Video Data and Addresses