Filter
Top Products
Section 27 Video Display Controller 3
R01UH0134EJ0400 Rev. 4.00 Page 1607 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
When AEN = 1 and WE = 1, the value is loaded in the internal circuits in synchronization with
Vsync.
If AMOD[1:0] = [0 0], the value specified in DEFA is applied to the control area.
If AMOD[1:0] = [0 1], the ACOEF value is added to the DEFA value according to the frame rate
(ARATE) and the result is applied to the control area as the value. When the value becomes
255 or larger, processing stops (fade-in).
If AMOD[1:0] = [1 0], the ACOEF value is subtracted from the DEFA value according to the
frame rate (ARATE) and the result is applied to the control area as the value. When the
value becomes 0 or smaller, processing stops (fade-out).
Table 27.13 Value and Blending Ratio
Value (Decimal) Current Layer Lower Layer
255 255/255 0/255
254 254/255 1/255
253 253/255 2/255
252
:
2
252/255
:
2/255
3/255
:
253/255
1 1/255 254/255
0 0/255 255/255