EKK8301 Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EKK8301

Keyboard Encoder

ELAN Microelectronics 

eKK8301

Keyboard Encoder

Read ID (F2)

- Responds with ACK.

- Discontinues scanning.

- Sends two ID bytes. The second byte will be sent within 500 us after first byte.

- Resumes scanning.

Set Typematic Rate/Delay (Hex F3)

- Responds ACK.

- Receives rate/delay value byte.

- Responds ACK.

- Set rate/delay ( * Note 1)

- Returns to previous scanning state.

* Note 1

1. Repeat period = (8 + A) x (2 ^ B) x 0.00417 seconds

A : binary value of bits 2, 1, and 0.

B : binary value of bits 4 and 3.

2. Delay = ( C + 1 ) x 250 milliseconds

C : binary value of bits 6 and 5. Bit 7 is always 0.

bit 4~ bit 0 Typematic rate ±20% bit 4~ bit 0

00000

30.0

10000

00001

26.7

10001

00010

24.0

10010

00011

21.8

10011

00100

20.0

10100

00101

18.5

10101

00110

17.1

10110

00111

16.0

10111

01000

15.0

11000

01001

13.3

11001

01010

12.0

11010

01011

10.9

11011

01100

10.0

11100

01101

9.2

11101

01110

8.6

11110

01111

8.0

11111

typematic rate ±20%

7.5

6.7

6.0

5.5

5.0

4.6

4.3

4.0

3.7

3.3

3.0

2.7

2.5

2.3

2.1

2.0

6•

Product Specification (V1.0) 08.07.2002

(This specification is subject to change without further notice)

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