VDP31XXB Datasheet, PDF (43/72 Pages) Micronas – Video Processor Family

PRELIMINARY DATA SHEET
3.2.1. Scaler Adjustment
In case of linear scaling, most of the scaler registers
need not be set. Only the scaler mode, active video
length, and the fixed scaler increments (scinc1/scinc2)
must be written.
The adjustment of the scaler for nonlinear scaling
modes should use the parameters given in Table 3–4.
Table 3–4: Set-up values for nonlinear scaler modes
Register
scinc1
scinc2
scinc
fflim
scw1 – 0
scw1 – 1
scw1 – 2
scw1 – 3
scw1 – 4
scw2 – 0
scw2 – 1
scw2 – 2
scw2 – 3
scw2 – 4
Scaler Modes
‘waterglass’
border 35%
‘panorama’
border 30%
center compression
3/4
5/6
4/3
6/5
1643 1427 1024 1024
1024 1024
376
611
90
56
85
56
945
985
921
983
110
115
83
94
156
166
147
153
317
327
314
339
363
378
378
398
473
493
461
492
110
115
122
118
156
166
186
177
384
374
354
363
430
425
418
422
540
540
540
540
VDP 31xxB
Micronas
43