SC84520DP Ver la hoja de datos (PDF) - Silan Microelectronics

Número de pieza

componentes Descripción

Fabricante

SC84520DP

TWO IN ONE SCROLLING MOUSE CONTROLLER

Silan Microelectronics 

Silan

Semiconductors

SC84520

l. Status Request (E9)

When this command is issued by the system, SC84520 respond with a 3-byte status report as follows:

Byte

1

2

3

m. Set Resolution (E8, XX)

Bit

Description

0

1 = Right button pressed

1

1 = Middle button pressed

2

1 = Left button pressed

3

Reserved

4

0 = Normal speed, 1 = Autospeed

5

0 = Disabled, 1 = Enable

6

0 = Stream mode, 1 = Remote mode

7

Reserved

0-7

Current resolution setting (D0 – D7)

0-7

Current sampling rate (D0 – D7)

SC84520 provides four resolutions selected by the second byte of this command as follows:

Second Byte XX

00

01

02

03

n. Set Autospeed (E7)

Resolution

8 dots/count

4 dots/count

2 dots/count

1 dot/count

At the end of a sample interval in the stream mode, The current X and Y data values are converted new

values. The sign bits are not involved in this conversion. The conversion is only in stream mode. The

relationship between the input and output count follows:

o. Reset Autospeed (E6)

Input

0

1

2

3

4

5

N( ≥6)

Output

0

1

1

3

6

9

2.0*N

This command restore normal speed.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

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