EM84510

PS/2 SCROLLING MOUSE CONTROLLER

13

* This specification are subject to be changed without notice.

5.30.2001

(B) Sending DATA

• • • • • • • • • • •

• • • • • • • • •

• • •• • • • •

CLK

DATA

1st

CLK

2nd

CLK

10th

CLK

11th

CLK

Tsci

Tsca

Tscd

Start

Bit

Bit0 -Bit7

Parity

Bit

Stop

Bit

><

><

><

Tsdc

><

Tpi

><

• • • • • • • • •

(R,M,L)

(R,M,L)

INTERNAL SIGNAL

DATA INPUT SIGNAL

DATA OUTPUT SIGNAL

PS2 MOUSE ENABLE

DATA

CLK

CLK INPUT SIGNAL

CLK OUTPUT SIGNAL

PS2 MOUSE ENABLE

AC Timing point:

EM84510 I/O pin equivalent circuit :

R,M,L :

DATA :

CLK :

X1,X2,Y1,Y2 :

PHASE DIGITAL SIGNAL

X1,X2,Y1,Y2

12.5K

80µA

30K

4

-

+

-

+

12.5K

13.2K

13.2K

1.6V

DATA,

CLK PIN

X1,X2,Y1,Y2 PIN

CLK,DATA PIN

L,M,R PIN

51k