Hardware Information

Allocation of the Display to Display Select Pins

The automatic configuration of one of 15 possible displays is effected via the Display Select Inputs. The Display Select inputs are fitted with Pull-Up resistors, i.e. if these inputs are not connected, they have a high level. In order to generate a low level, the input must be connected to GND.

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 bits

 

 

 

 

 

 

5

low

high

low

high

reserved

 

 

 

 

 

 

6

low

high

high

low

1024 x 768 (XGA), TFT,

 

 

 

 

 

18 bits

 

 

 

 

 

 

7

low

high

high

high

800 x 600 (SVGA), TFT,

 

 

 

 

 

18 bits

 

 

 

 

 

 

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 selec-

 

 

 

 

 

ted display

 

 

 

 

 

 

SIMATIC Box PC 620 Manual

7-21

A5E00131465-01

Page 153
Image 153
Siemens 620 appendix Allocation of the Display to Display Select Pins, Pin No, Display type