ARM ARM DUI 0224I manual 5 A/D and keypad connector, Table C-8 A/D and keypad J13 Signal Pin

Models: ARM DUI 0224I

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CLCD Display and Adaptor Board

C.4.5 A/D and keypad connector

The signals on the connector J13 are shown in Table C-7 on page C-17.

This connector enables the connection of an external keypad (R[4:1] are the keypad row scan output signals and C[4:1] are the column detect input signals). There are also connections to the analog to digital converter inputs on the CLCD adaptor board (AUX[2:1] and VBAT[2:1]).

Table C-8 A/D and keypad J13

Signal

Pin

Pin

Signal

 

 

 

 

3V3

1

20

3V3

 

 

 

 

AUX1

2

19

GND

 

 

 

 

AUX2

3

18

GND

 

 

 

 

VBAT1

4

17

GND

 

 

 

 

VBAT2

5

16

GND

 

 

 

 

R1

6

15

C1

 

 

 

 

R2

7

14

C2

 

 

 

 

R3

8

13

C3

 

 

 

 

R4

9

12

C4

 

 

 

 

GND

10

11

GND

 

 

 

 

C-18

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ARM DUI 0224I

Page 336
Image 336
ARM ARM DUI 0224I manual 5 A/D and keypad connector, Table C-8 A/D and keypad J13 Signal Pin, AUX1 GND AUX2 VBAT1 VBAT2