EM84510
PS/2 SCROLLING MOUSE CONTROLLER
(B) Sending DATA
CLK
1st
CLK
2nd
CLK
10th
CLK
11th
CLK
• • • • • • • • • • •
>
<
>
<
>
<
Tsci
Tsca
Tpi
>
<
>
<
Tsdc
Tscd
DATA
• • • • • • • • •
• • • • • • • • •
Bit0 -Bit7
• • •
• • • • •
Parity
Bit
Stop
Bit
Start
Bit
AC Timing point:
DATA,
CLK PIN
VDD-2.6
VSS+0.4V
1.6V
X1,X2,Y1,Y2 PIN
CLK,DATA PIN
V
SS
V
DD-0.8V
V
SS+0.8V
V
V
DD
L,M,R PIN
SS
EM84510 I/O pin equivalent circuit :
R,M,L :
DATA :
V
CC
(R,M,L)
INTERNAL SIGNAL
VCC
(R,M,L)
DATA
PS2 MOUSE ENABLE
DATA OUTPUT SIGNAL
DATA INPUT SIGNAL
CLK :
X1,X2,Y1,Y2 :
X1,X2,Y1,Y2
-
PHASE DIGITAL SIGNAL
VCC
+
VCC
13.2K
12.5K
VDD
VDD
PS2 MOUSE ENABLE
CLK OUTPUT SIGNAL
CLK
V
4
DD
+
-
80µA
CLK INPUT SIGNAL
13.2K
12.5K
51
30K
k
* This specification are subject to be changed without notice.
5.30.2001
13
ELAN [ ELAN MICROELECTRONICS CORP ]
