Pin Header For Matrix Keypad (Keypad1) - Advantech RSB-4210 Evaluation Kit User Manual

2.2.22

Pin Header for Matrix Keypad (KEYPAD1)

The Keypad circuitry scans an 6*6 array of 36 normal-open, single-pole
switches. Any one or two keys depressed will be de-bounced and decoded.
An interrupt is generated whenever a stable set of depressed keys is
detected. The keypad interface:
Provides scanning, de-bounce, and decoding for a 36-key switch array
Scans a 6-row by 6-column matrix
May decode 2 keys at once
Generates an interrupt when a new stable key is determined
Also generate a 3-key reset interrupt
Pin
1
3
5
7
9
11
Figure 2-27 Pin Header for Matrix Keypad
Description Pin
KEY_COL2
KEY_COL3
KEY_COL4
KEY_COL5
KEY_COL6
KEY_COL7
37
Description
2
KEY_ROW2
4
KEY_ROW3
6
KEY_ROW4
8
KEY_ROW5
10 KEY_ROW6
12 KEY_ROW7
RSB-4210 Evaluation Kit User Manual