EKT8100A datasheet, PDF - EEWORLD Datasheet

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EKT8100A: DescriptionCapacitive Touch Pad Controller; File Size769KB，37 Pages; ManufacturerEMC [ELAN Microelectronics Corp]

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EKT8100A Overview

Capacitive Touch Pad Controller

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eKT8100A

Product

Specification

. V

ERSION

1.3

ELAN MICROELECTRONICS CORP.

November 2006

Contents

Introduction ............................................................................................................. 1

Features ................................................................................................................... 1

Three-Mode State Transition................................................................................... 2

Interface Description............................................................................................... 3

4.1

UART Interface ................................................................................................. 3

4.2 SPI Interface..................................................................................................... 5

Pin Assignment ....................................................................................................... 8

Pin Description ...................................................................................................... 10

Timing Description ................................................................................................ 13

Special Pin Description......................................................................................... 13

8.1

8.2

Interface Selection Pin .................................................................................... 13

/INT Pin........................................................................................................... 14

8.3 I/O-Output Pin................................................................................................. 15

Electrical Characteristic........................................................................................ 17

9.1

9.2

Absolute Maximum Ratings ............................................................................ 17

DC Electrical Characteristic ............................................................................ 17

9.3 AC Electrical Characteristic............................................................................. 17

Application Circuit................................................................................................. 18

10.1 Mode1 (Button mode) ..................................................................................... 18

10.1.1 LQFP 64 .........................................................................................................18

10.1.2 QFN 40 .............................................................................................................19

10.2 Mode 2 (Single Scroll Mode)........................................................................... 20

10.3 Mode 3 (Double Scroll Mode) ......................................................................... 21

Protocol Description ............................................................................................. 22

11.1 Command Description .................................................................................... 22

11.1.1

11.1.2

11.1.3

11.1.4

11.1.5

11.1.6

11.1.7

11.1.8

Packet Synchronous (Host to Device, UART Mode Only) ................................22

Packet Hello (Device to Host; Mode 1 Only).....................................................22

Packet Hello (Device to Host; Mode 2 and Mode 3 Only).................................22

Packet ID #6 (Device to Host; Mode 1).............................................................23

Packet ID #8 (Device to Host; Mode 2 and Mode 3).........................................24

Packet ID #2 (Device to Host)...........................................................................25

Packet ID #3 (Host to Device)...........................................................................26

Packet ID #4 (Host to Device)...........................................................................26

11.2 Register Description........................................................................................ 26

11.2.1 Register Number = 0, Read F/W Version (Read Only) .....................................26

11.2.2 Register Number = 1, Read Button Status (Read Only) ...................................27

11.2.3 Register Number = 2, Read S1 Position (Read Only) ......................................28

Product Specification (V1.3) 11.01. 2006

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