米6体育平台手机版

DLPU115 January 2022 DLPC3421

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3.1.5.2 Write Parameters

Table 3-3 describes the command parameters.

Table 3-3 Write Parameters

CMD Parameter	Port	Bits/Pixel	Data Type	Bus Width	Clks/Pixel	Notes
00h	DSI	Variable	DSI	N/A	N/A	Data type is automatically detected; variable bus width configured using GPIO_01 and GPIO_02
40h	Parallel	16	RGB 565	16	1	Auto-select RGB CSC
41h	Parallel	18	RGB 666	18	1	Auto-select RGB CSC
43h	Parallel	24	RGB 888	24	1	Auto-select RGB CSC
50h	Parallel	18	YCbCr 666	18	1	Auto-select YCbCr CSC
51h	Parallel	24	YCbCr 888	24	1	Auto-select YCbCr CSC
60h	Parallel	16	YCbCr 4:2:2 88	8	2	Auto-select YCbCr CSC Auto-select 4:2:2 → 4:4:4
61h	Parallel	16	YCbCr 4:2:2 88	16	1	Auto-select YCbCr CSC Auto-select 4:2:2 → 4:4:4

This command is used in conjunction with the Write Input Source Select command. This command specifies which input port displays when the Write Input Source Select command selects external video port as the image source. The settings for this command are retained until changed using this command. These settings are automatically applied each time the external video port is selected.

When the external video port is selected as the input source, the software automatically selects and loads the proper CSC, based on the selected parameter of this command (appropriate matrix for RGB, selected matrix for YCbCr including offset). The appropriate data path is also automatically selected for 4:2:2 versus 4:4:4 processing.

The user must review the notes for the Write Input Source Select 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.