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Page 140 Epson Research and Development
Vancouver Design Center
S1D13708 Hardware Functional Specification
X39A-A-001-02 Issue Date: 02/03/07
bits 9-0 PIP
+
Window Y Start Position Bits [9:0]
These bits determine the Y start position of the PIP
+
window in relation to the origin of the
panel. Due to the S1D13708 SwivelView feature, the Y start position may not be a vertical
position value (only true in 0° and 180° SwivelView). For further information on defining
the value of the Y Start Position register, see Section 13, “Picture-in-Picture Plus (PIP+)”
on page 184.
The register is also incremented differently based on the SwivelView orientation. For 0°
and 180° SwivelView the Y start position is incremented in 1 line increments. For 90° and
270° SwivelView the Y start position is incremented by y pixels where y is relative to the
current color depth.
Depending on the color depth, some of the higher bits in this register are unused because
the maximum vertical display height is 1024 pixels.
Note
These bits have no effect unless the Picture-in-Picture Plus PIP
+
Window Enable bit is
set to 1 (REG[71h] bit 4).
Note
The effect of REG[84h] through REG[91h] takes place only after REG[91h] is written
and at the next vertical non-display period.
PIP
+
Window Y Start Position Register 0
REG[88h] Read/Write
PIP
+
Window Y Start Position Bits 7-0
76543210
PIP
+
Window Y Start Position Register 1
REG[89h] Read/Write
n/a
PIP
+
Window Y Start Position
Bits 9-8
7 6 5 4 3 210
Table 8-12: 32-bit Address Increments for Color Depth
Color Depth Pixel Increment (y)
1 bpp 32
2 bpp 16
4 bpp 8
8 bpp 4
16 bpp 2