Epson S1D13706 - 8 Picture-In-Picture Plus; Concept; Registers

Epson Research and Development
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Vancouver Design Center
Programming Notes and Examples S1D13706
Issue Date: 01/02/23 X31B-G-003-03
8 Picture-In-Picture Plus
8.1 Concept
Picture-in-Picture Plus enables a sub-window within the main display window. The sub-
window may be positioned anywhere within the main window and is controlled through the
Sub-Window control registers (see Section 8.2, “Registers” ). The sub-window retains the
same color depth and SwivelView orientation as the main window.
The following diagram shows an example of a sub-window within a main window.
Figure 8-1: Picture-in-Picture Plus with SwivelView disabled
8.2 Registers
These are registers which control the Picture-In-Picture Plus feature.
This bit enables a sub-window within the main window. The location of the sub-window
within the landscape window is determined by the Sub-Window X Position registers
(REG[84h], REG[85h], REG[8Ch], REG[8Dh]) and Sub-Window Y Position registers
(REG[88h], REG[89h], REG[90h], REG[91h]). The sub-window has its own Display Start
Address register (REG[7Ch, REG[7Dh], REG[7Eh]) and Memory Address Offset register
(REG[80h], REG[81h]). The sub-window shares the same color depth and SwivelView
orientation as the main window.
REG[71h] Special Effects Register
Display Data
Word Swap
Display Data
Byte Swap
n/a
Sub-Window
Enable
n/a n/a
SwivelView
Mode Select
Bit 1
SwivelView
Mode Select
Bit 0
sub-window
main-window
0° SwivelView