DLPU081B January 2019 – January 2024 DLPC3479
The following table describes the write parameters.
Parameter Bytes | Description |
---|---|
Byte 1 | Pixels per line (LSByte) |
Byte 2 | Pixels per line (MSByte) |
Byte 3 | Lines per frame (LSByte) |
Byte 4 | Lines per frame (MSByte) |
This command is used in conjunction with the Write Input Source Select (05h) command. When external video is selected as the image source, this command specifies the active data size of the input image to the system for all external video interfaces. The settings for this command are retained until changed with subsequent Write Input Image Size commands. The settings for this command are retained until changed using this command. These settings automatically apply each time the external video port is selected.
The parameter values are 1-based (for example, a value of 1280 pixels specifies 1280 pixels per line).
The user must review the notes for the Write Input Source Select (05h) command to understand the concept of source-associated commands. This concept determines when source-associated commands are executed by the system. This command is a source-associated command.
The maximum and minimum input values are shown in Table 3-49. The controller flags values outside of these ranges as an error (invalid write parameter), and does not execute the command.
Parameter | Minimum Value | Maximum Value |
---|---|---|
Input source active pixels per line | 320 | 1280 |
Input source active lines per frame | 200 | 800 |