TP8452 Ver la hoja de datos (PDF) - Topro

Número de pieza

componentes Descripción

Fabricante

TP8452

PS/2 2D 3Key Mouse Controller

Topro 

TP8452

PS/2 2D 3Key Mouse

Controller

Function Descriptions

(1) PS/2 Mouse Mode

(A) Operating mode

There are four operating modes in PS/2 mouse :

a. Reset Mode :

In this mode a self-test is initiated during power-on or by a Reset command. After reset

signal, PS/2 mouse will send:

(a) Completion code AA & ID code 00.

(b) Set default:

sampling rate: 100 reports/s

non-autospeed

stream mode

4 counts/mm

disable

b. Stream Mode:

The maximum rate of transfer is the programmed sampling rate.

Data report is transmitted if

(a) switch is pressed

(b) movement has been detected

c. Remote Mode:

Data is transmitted only in response to a Read Data command.

d. Wrap Mode:

Any byte of data sent by the system, except hex EC ( Reset wrap mode ) or hex FF ( Reset

), is returned by TP8452.

Page 8 of 20

TOPRO CONFIDNETIAL

2003/7/31 Print

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