Advantech RSB-4210 Evaluation Kit Manual de usuario descargar pdf (Pagina 33)

25 RSB-4210 User Manual

Chapter 2 H/W Installation

2.2.21 Pin Header for Suspend (SUS_BTN1)

SUS_BTN1 is used to making system entering into suspend mode or resume from

suspend mode. You can connect it with an external button for applications. The pin

assignment is shown as below.

Figure 2.26 Pin Header for Suspend

2.2.22 Pin Header for Matrix Keypad (KEYPAD1)

The keypad circuitry scans a 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 gener-

ated 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

 Generates a 3-key reset interrupt as well

Pin Description Pin Description

1 nSUSPEND 2 GND

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 103 104

Sin comentarios

Advantech RSB-4210 Evaluation Kit Manual de usuario Pagina 33