267
µ
PD17062
The vertical start position of the display character is determined by the vertical start position register. At
this point, the vertical start position (number of horizontal scan lines) depends on the state of the V
SYNC
and
H
SYNC
signals supplied to the
µ
PD17062, as shown in Fig. 20-15. In other words, the first H
SYNC
signal that comes
after the V
SYNC
signal rises is counted as 1 H.
Fig. 20-15 Counting the Vertical Start Position
V
SYNC
H
SYNC
H
SYNC
#
#
$
$
%
%
Each circled number corresponds to the number of scan lines.
Содержание PD17062
Страница 17: ...17 µPD17062 HSYNC VSYNC INTNC CE Hysteresis input XOUT XIN XIN XOUT EO VCO Input ...
Страница 294: ...294 µPD17062 MEMO ...