EKK8011E ELAN Microelectronics Corp, EKK8011E Datasheet - Page 11

• Manufacturer Part Number: EKK8011E
• Description: Usb And Ps/2 Keyboard Encoder
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.2) 07.09.2009
(This specification is subject to change without further notice)
1. Repeat period = ( 8+A ) x ( 2
2. Delay = ( C +1 ) x 250 milliseconds
3. Default rate = 10.9 chars/sec + 20%
Read ID (F2)
Set Typematic Rate/Delay (Hex F3)
Bit 4~ Bit 0
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A : Binary value of Bits 2, 1, and 0.
B : Binary value of Bits 4 and 3.
C : Binary value of Bits 6 and 5. Bit 7 is always 0.
Default delay = 500ms ± 20%
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
Respond with ACK
Discontinue scanning
Send two ID bytes. The second byte will be sent within 500 µs after the first
byte.
Resume scanning
Respond with ACK
Receive rate/delay value byte
Respond with ACK
Set rate/delay (see Note 1)
Return to previous scanning state.
Typematic Rate ± 20%
30.0
26.7
24.0
21.8
20.0
18.5
17.1
16.0
15.0
13.3
12.0
10.9
10.0
9.2
8.6
8.0
B
) x 0.00417 seconds
NOTE
Bit 4~ Bit 0
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
USB & PS/2 Keyboard Encoder
Typematic Rate ± 20%
eKK8011E
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
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