Epson S1D13705 technical manual Selection of SwivelView Mode, SwivelView Mode Enable Mode Select

Epson Research and Development	Page 67
Vancouver Design Center

REG[19h] GPIO Status/Control Register
Address = 1FFF9h								Read/Write
n/a	n/a		n/a	GPIO4 Pin IO	GPIO3 Pin IO	GPIO2 Pin IO	GPIO1 Pin IO	GPIO0 Pin IO
				Status	Status	Status	Status	Status
bits 4-0		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.

REG[1Ah] Scratch Pad Register
Address = 1FFFAh	Read/Write

Scratch bit 7 Scratch bit 6 Scratch bit 5 Scratch bit 4 Scratch bit 3 Scratch bit 2 Scratch bit 1

Scratch bit 0

bits 7-0	Scratch Pad Register
	This register contains general use read/write bits. These bits have no effect on hardware.
REG[1Bh] SwivelView Mode Register
Address = 1FFFBh							Read/Write
						SwivelView	SwivelView
SwivelView	SwivelView	n/a	n/a	n/a	reserved	Mode Pixel	Mode Pixel
Mode Enable	Mode Select					Clock Select	Clock Select
						Bit 1	Bit 0
bit 7	SwivelView Mode Enable
	When this bit = 1, SwivelView Mode is enabled. When this bit = 0, Landscape Mode is
	enabled.
bit 6	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 77 for further information on SwivelView Mode.

The following table shows the selection of SwivelView Mode.

Table 8-7: Selection of SwivelView Mode

SwivelView	SwivelView
Mode Enable	Mode Select	Mode
(REG[1Bh] bit 7)	(REG[1Bh] bit 6)
0	X	Landscape
1	0	Default SwivelView
1	1	Alternate SwivelView

Hardware Functional Specification	S1D13705
Issue Date: 02/02/01	X27A-A-001-10