EM84513AFP Ver la hoja de datos (PDF) - ELAN Microelectronics

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componentes Descripción

Fabricante

EM84513AFP

Mouse Controller

ELAN Microelectronics 

EM84513

Mouse Controller

to the system. EM84513 resend the 3-byte data packet prior to clearing the

counter.

A response is sent within 25 ms if

• The system requires a response

• An error is detected in the transmission

When a command requiring a response is issued by the system ,another command

should not be issue until either the response is received or 25ms has passed.

7.1.5 PS/2 Mouse Commands Description

There are 16 valid commands that transmits between the system and EM84513. The

“FA” code is always the first response to any valid input received from the system other

than a Set Wrap Mode or Resend command.

The following table list the commands:

Hex Code

Command

FF

Reset

FE

Resend

F6

Set Default

F5

Disable

F4

Enable

F3,XX

Set Sampling Rate

F2

Read Device Type

F0

Set Remote Mode

EE

Set Wrap Mode

EC

Reset Wrap Mode

EB

Read Data

EA

Set Stream Mode

E9

Status Request

E8,XX

Set Resolution

E7

Set Autospeed

E6

Reset Autospeed

EM84513 Echo Code

FA,AA,00

XX,(XX,XX)

FA

FA

FA

FA,FA

FA,00

FA

FA

FA

FA,XX,XX,XX

FA

FA,XX,XX,XX

FA,FA

FA

FA

The following describes valid commands:

• Reset ( FF )

EM84513 operation:

i). Completion the reset.

ii). Transmitted FA,AA,00 to the system.

iii). Set default:sampling rate: 100 reports/s

non-autospeed

stream mode

2 dots/count

disable

• Resend ( FE )

i). Any time EM84513 receives an invalid command, it returns a Resend

command to the system.

ii). When EM84513 receives a Resend command, it retransmits its last packet

of data. If the last packet was a Resend command, it transmits the packet just

prior to the Resend command.

Product Specification ((V0.9) 06.16.2006

•7

(This specification is subject to change without further notice)

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