EKK8011E ELAN Microelectronics Corp, EKK8011E Datasheet - Page 3

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

Contents
Product Specification (V1.2) 07.09.2009
1
2
3
4
5
6
7
8
9
10 PS/2 Timing Diagram .............................................................................................. 28
11
12
13
A
General Description .................................................................................................. 1
Features ..................................................................................................................... 1
Application................................................................................................................. 2
Pin Assignment ......................................................................................................... 2
Pin Description.......................................................................................................... 4
Functional Description ............................................................................................. 5
6.1
6.2
6.3
Absolute Maximum Ratings ................................................................................... 26
DC Electrical Characteristics ................................................................................. 27
AC Electrical Characteristics ................................................................................. 27
Application Circuits ................................................................................................ 29
Application Matrix ................................................................................................... 30
Pad Diagram ............................................................................................................ 31
Comparison between eKK8011B and eKK8011E.................................................. 37
PS/2 Keyboard Functional Description............................................................... 5
USB Keyboard Function Description................................................................ 20
Internal-Multi Function...................................................................................... 26
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.2.1
6.2.2
6.2.3
System Commands .............................................................................................9
USB Keyboard Scan Code................................................................................23
Keyboard Buffer ..................................................................................................5
Power-on Reset and Self Test.............................................................................5
Keyboard Data Output.........................................................................................5
Keyboard Data Input ...........................................................................................5
Command from the System ................................................................................6
Keyboard Scan Code Table...............................................................................10
USB Keyboard Description ...............................................................................20
LED Report for USB Keyboard .........................................................................23
APPENDIX
Contents
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