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Siemens PC 670 User Manual

Page 154

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Hardware Information

Release 04/02

7-22

Panel PC 670 Computing Unit, Equipment Manual

Assignment of display to display select pins

Automatic configuration of one of 15 possible displays is performed by means of
the Display Select inputs. The Display Select inputs have pull-up resistors – in
other words, if these inputs are not connected, they go to High. The input has to be
connected to GND for them to go Low.

Pin No.

LCD_SEL3 LCD_SEL2 LCD_SEL1 LCD_SEL0 Display type

0

Low

Low

Low

Low

reserved

1

Low

Low

Low

High

reserved

2

Low

Low

High

Low

reserved

3

Low

Low

High

High

reserved

4

Low

High

Low

Low

640 x 480 (VGA), TFT, 18
bit

5

Low

High

Low

High

reserved

6

Low

High

High

Low

1024 x 768 (XGA), TFT,
18 bit

7

Low

High

High

High

800 x 600 (SVGA), TFT,
18 bit

8

High

Low

Low

Low

reserved

9

High

Low

Low

High

reserved

10

High

Low

High

Low

reserved

11

High

Low

High

High

reserved

12

High

High

Low

Low

reserved

13

High

High

Low

High

reserved

14

High

High

High

Low

reserved

15

High

High

High

High

No display /
DDC selected display