S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 72

• Manufacturer Part Number: S1D13705
• Description: S1d13705 Embedded Memory Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Page 66
bits 4-0
bits 7-0
bit 7
bit 6
S1D13705
X27A-A-001-09
REG[19h] GPIO Status/Control Register
Address = 1FFF9h
REG[1Ah] Scratch Pad Register
Address = 1FFFAh
REG[1Bh] SwivelView Mode Register
Address = 1FFFBh
Mode Enable
Scratch bit 7
SwivelView
n/a
Scratch bit 6
Mode Select
SwivelView
n/a
GPIO[4:0] Status
When the GPIOn pin is configured as an input, the corresponding GPIO Status bit is used
to read the pin input. See REG[18h] above.
When the GPIOn pin is configured as an output, the corresponding GPIO Status bit is used
to control the pin output.
Scratch Pad Register
This register contains general use read/write bits. These bits have no effect on hardware.
SwivelView Mode Enable
When this bit = 1, SwivelView Mode is enabled. When this bit = 0, Landscape Mode is
enabled.
SwivelView Mode Select
When this bit = 0, Default SwivelView Mode is selected. When this bit = 1, Alternate
SwivelView Mode is selected. See Section 12, “SwivelView™” on page 76 for further
information on SwivelView Mode.
The following table shows the selection of SwivelView Mode.
Scratch bit 5
n/a
n/a
Mode Enable
(REG[1Bh] bit 7)
SwivelView
0
1
1
GPIO4 Pin IO
Scratch bit 4
Status
n/a
Table 8-7: Selection of SwivelView Mode
(REG[1Bh] bit 6)
Mode Select
SwivelView
X
0
1
GPIO3 Pin IO
Scratch bit 3
Status
n/a
GPIO2 Pin IO
Scratch bit 2
Alternate SwivelView
reserved
Default SwivelView
Status
Landscape
Mode
Epson Research and Development
Hardware Functional Specification
GPIO1 Pin IO
Scratch bit 1
Clock Select
SwivelView
Mode Pixel
Status
Bit 1
Vancouver Design Center
Issue Date: 01/05/22
Read/Write
GPIO0 Pin IO
Read/Write
Read/Write
Scratch bit 0
Clock Select
SwivelView
Mode Pixel
Status
Bit 0