SDA9410-B13 MICRONAS [Micronas], SDA9410-B13 Datasheet - Page 36

• Manufacturer Part Number: SDA9410-B13
• Description: Display Processor and Scan Rate Converter using Embedded DRAM Technology Units
• Manufacturer: MICRONAS [Micronas]

SDA9410
5.4.2.2
The overall reduction of the horizontal compression block can be calculated by the
formula:
The user must specify the horizontal input picture size (defined by the I²C Bus parameter
APPLIPM/APPLIPS) and the horizontal output picture size (defined by the I²C Bus
parameter APPLM/APPLS) as well as the I²C Bus parameter INTHM/INTHS (I²C Bus
parameter, 07h, 08h, 29h, 2Ah) and DEZHM/DEZHS (I²C Bus parameter, 08h, 2Ah),
which can be calculated with the algorithm listed below (C-code).
intV, dezV: variables
for( intH=4*APPLM/S, dezH=1; intH<=4*APPLIPM/S; intH*=2, dezH*=2 )
intH = ((2048*4*APPLIPM/S*2+intH/2)/intH);
if( dezH>16)
{
}
36
INTHM/S = intH
;
intH= intH*dezH/16;
dezH=16;
Horizontal compression/expansion and panorama mode
2
------------------- -
INTHM
2048
--------------------- -
DEZHM
1
Input signal processing
Preliminary Data Sheet
Micronas