Timing Diagrams

Data Output

Timing Parameter

Min/Max

T1

Data transition to the falling edge of CLK

5/25

ms

T2

Rising edge of CLK to DATA transition

5/T4-5

ms

T3

Duration of CLK low

30/50

ms

T4

Duration of CLK high

30/50

ms

T5

Minimum time to MOUSE inhibit after clock 11

>0

ms

T6

Maximum time to MOUSE inhibit after clock 11 to ensure MOUSE does not start another trans-

mission

<50

ms

Data Input

Timing Parameter

Min/Max

T7

Duration of CLK low

30/50

ms

T8

Duration of CLK high

30/50

ms

T9

Time from low to high CLK transition to time when MOUSE samples DATA line

5/25

ms

HT6523

Rev. 1.20

6

March 6, 2003

( 1 )

( 3 )

( 3 )

( 3 )

( 3 )

( 4 )

1 s t

C L K

2 n d

C L K

1 0 t h

C L K

1 1 t h

C L K

D A T A

S t a r t B i t

B i t 0

P a r i t y B i t

S t o p B i t

T 5

T 3

T 4

T 1

T 2

( 2 )

( 5 ) ( 7 )

C L K

( 6 )

T 6

( 1 )

( 3 )

( 4 )

M o u s e

I n h i b i t

2 n d

C L K

1 0 t h

C L K

1 1 t h

C L K

D A T A

S t a r t B i t

B i t 0

P a r i t y B i t

S t o p B i t

T 7

T 8

T 9

( 5 )

( 7 )

C L K

( 6 )

1 s t

C L K

( 2 )

9 t h

C L K

( 8 )

( 5 )