SDA9410-B13 Datasheet, PDF (32/179 Pages) Micronas – Display Processor and Scan Rate Converter using Embedded DRAM Technology Units

SDA9410
Preliminary Data Sheet
Input signal processing
5.4.2 Vertical and horizontal compression (VHCOMM/VHCOMS)
The Figure 13 shows the block diagram of the VHCOMM and VHCOMS block. The
VHCOMM and VHCOMS block are able to compress the picture in horizontal and
vertical direction continuously. The minimal step size in vertical direction is two lines, the
minimal step size in horizontal direction is four pixels. The figure below shows also the
functionality and the formula, which shows the relation between the number of input lines
(pixels) and output lines (pixels). In horizontal direction an expansion is also possible.
Panorama mode in horizontal direction will be supported.
INTVM, INTVS,
DEZVM, DEZVS,
CHFILM, CHFILS
YPEAKM, CPEAKM,
YPEAKS, CPEAKS
YUVIN
Vertical
compression
Vertical
peaking
4*APPLIPM
4*APPLIPS
pixels (CLKM/2)
2*ALPFIPM,
2*ALPFIPS
lines
INTHM, INTHS,
DEZHM, DEZHS
Horizontal
compression/
expansion
4*APPLIPM
4*APPLIPS
pixels (CLKM/2)
2*ALPFM
2*ALPFS
lines
YUVOUT
4*APPLM
4*APPLS
pixels (CLKM/2)
Number of output lines = (Number of input lines) * 512 / (512+INTVM) * 1/(DEZVM)
Number of output lines = (Number of input lines) * 2 * 2048 / (INTHM) * 1/(DEZHM)
Figure 13 Block diagram of VHCOMM/VHCOMS
INTVM = 0, ..., 511;
DEZVM = {1, 2, 4, 8, 16}
INTHM = 2048, ... , 8191;
DEZHM = {1, 2, 4, 8, 16}
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Micronas