PS/2 mouse

HT82M398A

6

February 22, 2000

(1 )

( 3 )

(3 )

( 3 )

(3 )

( 4 )

1s t

CL K

2nd

CL K

10t h

CL K

11t h

CL K

D A T A

S t a r t B i t

B i t 0

Pa r i t y B i t

St o p B i t

T5

T3

T4

T1

T2

(2 )

(5 ) ( 7 )

CL K

(6 )

T i m i n g P ar am et er

T1

D A T A t r ans i t i on t o t he f a l l i ng edge of C LK

T2

R i s i n g edge o f C L K t o D A T A t r ans i t i o n

T3

In a c ti v e C L K D u r a t i o n

T4

A c ti v e C L K D u r a t i o n

T5

M i n i m u m t i m e t o i n h i bi t M O U S E af t e r c l oc k 11

M i n ./M a x .

T6

T 6

M a x i m u m ti m e to i n h i b i t M O U S E a fte r c l o c k 1 1 to e n s u r e

M O U S E doe s n o t s t ar t an ot he r t r a n s m i s s i o n

5/ 25 m se c

5/ T 4 - 5 m se c

30/ 50 m se c

30/ 50 m se c

< 50 m se c

>0 m se c

(1 )

(3 )

(4 )

I/O

I nhi bi t

2nd

CL K

10t h

CL K

11t h

CL K

D A T A

S t a r t B i t

B i t 0

P a r i ty B i t

S t o p B i t

T7

T8

T9

(5 )

( 7 )

CL K

(6 )

T i m i n g P ar am et er

T 7

CL K Du r a t i o n , l o w

T 8

CL K Du r a t i o n , h i g h

T 9

T i m e f r o m l o w t o h i gh C L K t r ans i t i o n t o t i m e w hen

MO U S E s a mpl e s D A T A l i n e

M i n . / M ax.

1s t

CL K

(2 )

9t h

CL K

(8 )

(5 )

30/ 50 m se c

30/ 50 m se c

5/ 25 m se c