Table 8-8: Inverse Video Mode Select Options - Epson S1D13706 Technical Manual

Page 110
bit 5
Hardware Video
Invert Enable
bit 4
S1D13706
X31B-A-001-08
Hardware Video Invert Enable
This bit allows the Video Invert feature to be controlled using the General Purpose IO pin
GPIO0. This option is not available if configured for a HR-TFT or D-TFD as GPIO0
is used as an LCD control signal by both panels.
When this bit = 0, GPIO0 has no effect on the video data.
When this bit = 1, video data may be inverted via GPIO0.
Note
The S1D13706 requires some configuration before the hardware video invert feature
can be enabled.
• CNF3 must be set to 1 at RESET#
• GPIO Pin Input Enable (REG[A9h] bit 7) must be set to 1
• GPIO0 Pin IO Configuration (REG[A8h] bit 0) must be set to 0
If Hardware Video Invert is not available (i.e. HR-TFT panel is used), the video invert
function can be controlled by software using REG[70h] bit 4. The following table summa-
rizes the video invert options available.

Table 8-8: Inverse Video Mode Select Options

Software Video
Invert
0 0
0 1
1 X
1 X
Note
Video data is inverted after the Look-Up Table.
Software Video Invert
When this bit = 0, video data is normal.
When this bit = 1, video data is inverted.
See Table 8-8: "Inverse Video Mode Select Options".
Note
Video data is inverted after the Look-Up Table
Epson Research and Development
GPIO0 Video Data
X Normal
X Inverse
0 Normal
1 Inverse
Hardware Functional Specification
Vancouver Design Center
Issue Date: 01/11/13