Epson Research and Development

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Vancouver Design Center

 

 

 

REG[0Eh] Screen 2 Display Start Address 0 (LSB)

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

REG[0Fh] Screen 2 Display Start Address 1 (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

Start Addr Bit

15

14

13

12

11

10

9

8

 

 

 

 

 

 

 

 

Screen 2 Start Address Registers

These three registers form the seventeen bit Screen 2 Start Address. Screen 2 is always displayed immediately following the screen 1 data and will begin at the left-most pixel on a line. Keep in mind that if the Screen 1 Vertical Size is equal to or greater than the physical display then Screen 2 will not be shown.

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

The S1D13705 does not support split screen operation in portrait mode. Screen 2 will never be used if portrait mode is selected.

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

Screen 1 Start Address registers, REG[0C], REG[0D] and REG[10] are discussed in

Section 5.2.1 on page 28

Programming Notes and Examples

S1D13705

Issue Date: 02/01/22

X27A-G-002-03

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Image 127
Epson S1D13705 technical manual REG0Eh Screen 2 Display Start Address 0 LSB, REG0Fh Screen 2 Display Start Address 1 MSB