27.11.1.1 Video Control Area - Video Module Details

Video common control command (Word Address+0)

The video common control command (address +0) is used to control the operations in the Image Unit window. The following describes the control operations

Video common control command (Word Address+1)

The video common control status (address + 1) writes the results of the operation in the Image Unit window.

Image window display control (Word Address+6)

Defines the image to display in the Image Unit window.

Internal Image Window Screens Control Flag (Word Address+11) / Internal Video Control Channel Number (Word Address+12)

This is the address area for changing the display state of a video picture.

After storing in the internal video channel number in Word Address+12, the control flag is changed to Word Address+11.

Video Channel Information (Word Address +13 to +36)/RGB Display Information (Word Address +37 to +42)

Set the display origin, brightness, contrast and color of each video channel 0 - 3 and RGB display.

Specify which part of the screen to display with the origin point's VX,VY coordinates. Base these coordinates on the video mode and window size.

Specify the Width of Video Image + Display Origin (VX) and Height of Video Image + Display Origin (VY) so as to not exceed the window size.
(Width of Video Image + VX ≦ 640, Width of Video Image + VY ≦ 480)

Specify the Double Width of Video Image + Display Origin (VX) and Double Height of Video Image + Display Origin (VY) so as to not exceed the window size.
(Width of Video Image x 2 + VX ≦ 640, Width of Video Image x 2 + VY ≦ 480)

Specify 4XWidth of Video Image + Display Origin (VX) and 4XHeight of Video Image + Display Origin (VY) so as to not exceed the window size.
(Width of Video Image x 4 + VX ≦ 640, Width of Video Image x 4 + VY ≦ 480)


(For example, Video Input = NTSC)

Example use of the Video Control Area

This section gives an example of an operation using the video control area.

Displaying the JPEG file on the CF Card

Display the video capture image "CP00005" saved on the CF Card on Channel 2.

  1. Write the JPEG file number "5" in [Video Control Start Address]+9 (Image Window2).

  2. Write the display size "2" (JPEG 1/4 extension) in bits 8 to 11 of [Video Control Start Address]+6 (Image Window Display Control).

Changing the display size of the Image Window Screen

Change the display size of Channel 2 from Standard to 1/4.

  1. Write "1" (Display Size:1/4 mode) to bits 0 to 1 in the [Video Control Start Address]+25 (Video Window Control Command).

Creating a still image

Create a still image from an image on Channel 2.

  1. Turn ON bit 2 of [Video Control Start Address]+25 (Video Window Control Command of Channel2).

Changing the Video Display position settings

Change the Channel 2 display origin from (0, 0) to (100,100).

  1. Turn ON bit 0 (Coordinate Position Update) of [Video Control Start Address]+11 (Internal Image Window Screens Control Flag).

  2. Write "100" in 2.[Video Control Start Address]+26 (Video Display position settings VX of Channel 2) and +27 (Video Display position settings VY of Channel 2).

Changing the Transparent Color

  1. Turn ON bit +0 (Transparency) of [Video Control Start Address]+0 (Video Common Control Command).

  2. Turn ON bit 1 (Specified Color in Transparency) [Video Control Start Address]+0.

  3. Write the color code in [Video Control Start Address]+3 - 5.