Epson S1D13705 technical manual Number of Pixels Panned Using Start Address

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5.2.1 Registers

REG[0Ch] Screen 1 Display Start Address 0 (LSB)

Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr
Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
REG[0Dh] Screen 1 Display Start Address 1 (MSB)
Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr	Start Addr
Bit 15	Bit 14	Bit 13	Bit 12	Bit 11	Bit 10	Bit 9	Bit 8
REG[10h] Screen 1 Display Start Address 2 (MSB)
n/a	n/a	n/a	n/a	n/a	n/a	n/a	Start Addr
							Bit 16

Screen 1 Start Address Registers

These three registers form the seventeen bit screen 1 start address. Screen 1 is displayed starting at the top left corner of the display.

In landscape mode these registers form the word offset to the first byte in display memory to be displayed in the upper left corner of the screen. Changing these registers by one will shift the display image 2 to 16 pixels, depending on the current color depth.

In portrait mode these registers form the offset to the display memory byte where screen 1 will start displaying. Changing these registers in portrait mode will result in a shift of 1 to 8 pixels depending on the color depth.

Refer to Table 5-1: “Number of Pixels Panned Using Start Address” to see the minimum number of pixels affected by a change of one to these registers

Table 5-1: Number of Pixels Panned Using Start Address

Color Depth (bpp)	Pixels per Word	Landscape Mode	Pixels Per Byte	Portrait Mode
		Number of Pixels Panned		Number of Pixels Panned
1	16	16	8	8
2	8	8	4	4
4	4	4	2	2
8	2	2	1	1

S1D13705	Programming Notes and Examples
X27A-G-002-03	Issue Date: 02/01/22