ADE3800SXL View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADE3800SXL
STMicroelectronics
ADE3800SXL Datasheet PDF : 138 Pages
| |||
Register Description by Block
ADE3800
Display List:
Row Attr. 48 bits x 15 rows = 720 bits
Char Attr. 16 bits x 30 chars x 15 rows = 7200 bits
The total display list is estimated based on the current OSD size of 30x15 characters.
Total Display List Memory => 7920 bits
TOTAL OSD Estimated RAM Memory: 82008 bits (RAM selected 98304 bits)
Color LUT:
64 x 32 = 2048 bits
For a 30x15 character display the OSD block global RAM has room remaining for:
255 => 1bpp (room for 418 char, but only 255 can be addressed w/ 8bit CID) or,
209 => 2bpp or,
139 => 3bpp or,
104 => 4bpp
Global 24b RAM is programmed in the following order:
Example
WRITE 00 [Data] -> ram_addr 0 [23: 16]
WRITE 01 [Data] -> ram_addr 0 [15: 8]
WRITE 02 [Data] -> ram_addr 0 [ 7: 0]
WRITE 03 [Data] -> ram_addr 1 [23: 16]
WRITE 04 [Data] -> ram_addr 1 [15: 8]
... and so on …..
Similarly, the Color LUT 32b RAM, is programmed in the following order:
Example
WRITE 00 [Alpha] -> lut_addr 0 [27:24]
WRITE 01 [ R ] -> lut_addr 0 [23:16]
WRITE 02 [ G ] -> lut_addr 0 [15: 8]
WRITE 03 [ B ] -> lut_addr 0 [ 7: 0]
WRITE 04 [Alpha] -> lut_addr 1 [27:24]
... and so on …..
82/138
Share Link: 