EMC EKK8011

eKK8011
USB & PS/2
Keyboard Encoder
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
June 2003
Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2005 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes
no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN
Microelectronics makes no commitment to update, or to keep current the information and material contained in
this specification. Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall
not be liable for direct, indirect, special incidental, or consequential damages arising from the use of such
information or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR
BY ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN
MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters:
Hong Kong:
USA:
No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, Taiwan 30077
Tel: +886 3 563-9977
Fax: +886 3 563-9966
http://www.emc.com.tw
Elan (HK) Microelectronics
Corporation, Ltd.
Elan Information
Technology Group
Rm. 1005B, 10/F Empire Centre
68 Mody Road, Tsimshatsui
Kowloon , HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
elanhk@emc.com.hk
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Saratoga, CA 95070
USA
Tel: +1 408 366-8223
Fax: +1 408 366-8220
Europe:
Shenzhen:
Shanghai:
Elan Microelectronics Corp.
(Europe)
Elan Microelectronics
Shenzhen, Ltd.
Elan Microelectronics
Shanghai Corporation, Ltd.
Siewerdtstrasse 105
8050 Zurich, SWITZERLAND
Tel: +41 43 299-4060
Fax: +41 43 299-4079
http://www.elan-europe.com
SSMEC Bldg., 3F, Gaoxin S. Ave.
Shenzhen Hi-Tech Industrial Park
Shenzhen, Guandong, CHINA
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
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Shanghai, CHINA
Tel: +86 021 5080-3866
Fax: +86 021 5080-4600
Contents
Contents
1
2
3
4
5
6
General Description .................................................................................................. 1
Features ..................................................................................................................... 1
Applications............................................................................................................... 1
Pin Configuration ...................................................................................................... 2
Pin Description.......................................................................................................... 3
Function Description ................................................................................................ 4
6.1
PS/2 Keyboard Function Description ................................................................. 4
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.2
USB Keyboard Function Description................................................................ 20
6.2.1
6.2.2
6.2.3
7
8
9
Keyboard Buffer ..................................................................................................4
Power-on Reset and Self Test.............................................................................4
Keyboard Data Output.........................................................................................4
Keyboard Data Input ...........................................................................................4
Command from the System ................................................................................5
Command to the System.....................................................................................9
Keyboard Scan Code Table.................................................................................9
USB Keyboard Description ...............................................................................20
Led Report for USB Keyboard ..........................................................................25
USB Keyboard Scan Code................................................................................25
6.3 Internal-Multi Function...................................................................................... 28
Absolute Maximum Ratings ................................................................................... 28
DC Electrical Characteristics ................................................................................. 29
AC Electrical Characteristics ................................................................................. 29
Product Specification (V1.0) 06.10.2003
• iii
Contents
Specification Revision History
Doc. Version
1.0
iv •
Revision Description
Date
2003/06/10
Product Specification (V1.0) 06.10.2003
eKK8011
USB & PS/2 Keyboard Encoder
1
General Description
The eKK8011A/eKK8011B microcontroller is dedicated to an USB & PS/2 keyboard
encoder ,specially designed for IBM PC AT and all compatible machines. The
eKK8011A/eKK8011B controls all scan codes, three LEDs status, scan timing and
communications between the keyboard and PC. It is easy to implement a high
performance, low cost keyboard with the minimal external components. The Body of
eKK8011A is EM78M611, and the body of eKK8011B is EM78611.
2
Features
USB Specification Compliance
• Universal Serial Bus Specification Version 1.1
• USB Device Class Definition for Human Interface Device (HID), Firmware
Specification Version 1.1
Low cost - eliminate need external components.
Run at 6MHz frequency
Phantom key detects.
Support scan code set 1 ,2 and 3 for PS/2.
Support HID Usage ID for USB
Support PC PS/2 and USB keyboard.
Support USB Sleep Mode
Low power CMOS device technology.
Internal pull-up resistor.
Tri-state outputs for easy board application.
Support WINDOWS TM 95, 98, 2000, ME keys.
Support multi-media or other special application keyboard encoder.
WINDOWS is registered trademarks of Microsoft corporation.
3
Applications
USB Keyboard only.
USB and PS/2 both compatible with Keyboard
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
•1
eKK8011
USB & PS/2 Keyboard Encoder
4
Pin Configuration
eKK8011A (44-Pin QFP)
eKK8011B (44-Pin QFP)
2•
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
5
Pin Description
Symbol
I/O
Function
P50
P51
P52
P53
P54
P55
P56
P57
P80
P81
P82
P83
P84
P85
P86
P87
P90
P91
P92
P93
P95
VSS
SCROLL
NUM
CAPS
P60
P61
P62
P63
P64
P65
P66
P67
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
O
PWR
O
O
O
I
I
I
I
I
I
I
I
CLK/D+
I/O
DATA/D-
I/O
V DD
OSCO
OSCI
V3.3
PWR
O
I
PWR
Column 3 Low output scan line, 3-state
Column 4 Low output scan line, 3-state
Column 5 Low output scan line, 3-state
Column 6 Low output scan line, 3-state
Column 7 Low output scan line, 3-state
Column 14 Low output scan line, 3-state
Column 13 Low output scan line, 3-state
Column 12 Low output scan line, 3-state
Column 11 Low output scan line, 3-state
Column 15 Low output scan line, 3-state
Column 10 Low output scan line, 3-state
Column 8 Low output scan line, 3-state
Column 9 Low output scan line, 3-state
Column 0 Low output scan line, 3-state
Column 16 Low output scan line, 3-state
Column 17 Low output scan line, 3-state
Column 1 Low output scan line, 3-state
Column 2 Low output scan line, 3-state
Internal Multi-Function 1 selection
Internal Multi-Function 2 selection
Mode LED
Ground
Scroll Lock Indicator
NUM Lock Indicator
Caps Lock Indicator
Row 0 Input scan line, internal pull high ( 25KΩ)
Row 1 Input scan line, internal pull high ( 25KΩ)
Row 2 Input scan line, internal pull high ( 25KΩ)
Row 3 Input scan line, internal pull high ( 25KΩ)
Row 4 Input scan line, internal pull high ( 25KΩ)
Row 5 Input scan line, internal pull high ( 25KΩ)
Row 6 Input scan line, internal pull high ( 25KΩ)
Row 7 Input scan line, internal pull high ( 25KΩ)
CLOCK line for IBM communication , internal pull high ( 2.2KΩ) or
D+ line for USB communication, internal weekly pull high (2MΩ)
DATA line for IBM communication , internal pull high ( 2.2KΩ) or
D- line for USB communication, internal pull high (1.5KΩ)
+5V Power Supply
Connect 6MHz Xtal for 6MHz oscillation
Connect 6MHz Xtal for 6MHz oscillation
3.3V output
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
3
eKK8011
USB & PS/2 Keyboard Encoder
6
Function Description
The PS/2 keyboard function descriptions are provided in Section 6.1. In section 6.2,
we provide the USB keyboard function descriptions.
6.1 PS/2 Keyboard Function Description
We describe the keyboard buffer, power-on Reset and self test, input, output,
command, and scan codes in the following sections.
6.1.1 Keyboard Buffer
The keyboard will buffer 16 bytes in a first-in-first-out order when the system is able to
receive scan codes from the keyboard. The response codes and repeated codes will
not be buffered. If keystrokes generate a multiple-byte sequence, the entire
sequence must fit into the buffer or the keystroke is discarded and a buffer-overrun
condition occurs.
6.1.2 Power-on Reset and Self Test
The duration of the keyboard Power-on-Reset(POR) should be within 150
milliseconds and 2 seconds after the power is applied to the keyboard.
After executing POR , the keyboard executes a self test. The LEDs are turned on at
the beginning and off at the end of the self test. The self test takes a minimum 300
milliseconds and a maximum 500 milliseconds. If the self test is successful, a
completion code AA hex is sent to the system and the keyboard starts scanning. If
the self test fails, and error code is sent, the keyboard is disabled and waits for a
command from the system. The completion codes are sent between 450
milliseconds and 2.5 seconds after POR, and between 300 and 500 milliseconds after
a RESET command is acknowledged.
6.1.3 Keyboard Data Output
When the keyboard is ready to send data to the system, it first checks clock and data
lines. If either one is in the low state, data is stored in the keyboard buffer. If both
are in the high state, keyboard starts clocking data out. Data will be valid before the
trailing edge and after the leading edge of the clock pulse. During the transmission
the keyboard checks the clock line at least every 60 microseconds . If the system
lowers the clock lines before the leading edge of the 10th clock, the keyboard should
stop sending, then buffer the data and return clock and data lines to high state.
6.1.4 Keyboard Data Input
When the system is ready to send data to the keyboard, it first checks clock line to
see if keyboard is sending data. If keyboard is not sending data or it is sending data
but has not reached the 10th clock, the system can inhibit the interface by forcing the
clock line low for more than 60 microseconds and prepares to send data. The
4•
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
keyboard checks clock line status at least every 5 milliseconds. If a system Request
to Send(RTS) is detected, the keyboard clocks 11 bits in. After the 10th bit, the
keyboard checks for a high state in data line then pulls it low and clocks one more bit
to signal the system that data has been received. If data is low after the 10th bit, it
indicates a frame error. The keyboard should continue to count until data line goes
high, then pulls it low and issues a RESEND to the system.
6.1.5 Command from the System
The system can send commands to the keyboard at any time. The keyboard needs
to respond within 20 milliseconds, unless the system prevents keyboard output, when
doing self test or executing a RESET. The following are the keyboard input
commands and the actions that keyboard needs to take.
Set /Reset Status indicators ( Hex ED )
- Responds ACK.
- Receives option byte.
- Responds ACK.
- Updates status indicators.
- Returns to previous scanning state.
Echo ( Hex EEH )
- Responds with EE hex.
- Returns to previous scanning state.
Invalid commands ( Hex EF and F1 )
- Returns a RESEND command.
- Returns to previous scanning state.
Select Alternate Scan Codes ( Hex F0 )
- Responds ACK.
- Clears output buffer.
- Sets the default typematic rate/delay.
- Clears last typematic key.
- Receives option byte.
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
5
eKK8011
USB & PS/2 Keyboard Encoder
- Responds ACK.
- Option byte =
01 : selects scan code set 1
02 : selects scan code set 2
03 : selects scan code set 3
- Returns to previous scanning rate.
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.
6•
bit 4~ bit 0
Typematic rate ±20%
bit 4~ bit 0
typematic rate ±20%
00000
30.0
10000
7.5
00001
26.7
10001
6.7
00010
24.0
10010
6.0
00011
21.8
10011
5.5
00100
20.0
10100
5.0
00101
18.5
10101
4.6
00110
17.1
10110
4.3
00111
16.0
10111
4.0
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
bit 4~ bit 0
Typematic rate ±20%
bit 4~ bit 0
typematic rate ±20%
01000
15.0
11000
3.7
01001
13.3
11001
3.3
01010
12.0
11010
3.0
01011
10.9
11011
2.7
01100
10.0
11100
2.5
01101
9.2
11101
2.3
01110
8.6
11110
2.1
01111
8.0
11111
2.0
3. Default rate = 10.9 chars/sec + 20%
Default delay = 500 mS ±20%
Enable ( Hex F4 )
- Responds with ACK.
- Clears output buffer.
- Clears last typematic key.
- Start scanning.
Default Disable (Hex F5)
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Stops scanning,
Set Default (Hex F6 )
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Continues scanning,
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
7
eKK8011
USB & PS/2 Keyboard Encoder
Set All Keys ( Hex F7,F8,F9,FA )
- Responds ACK.
- Clears output buffer.
- Sets all key type (affect only scan code set 3 operation).
F7 : Typematic
F8 : Make/Break
F9 : Make
FA : Typematic/Make/Break
- Returns to previous scanning rate.
Set Key Type ( Hex FB,FC,FD )
- Responds ACK.
- Clears output buffer.
- Receives key ID byte
- Responds ACK.
- Sets key ID type (affect only scan code set 3 operation).
FB : Typematic
FC : Make/Break
FD : Make
- Returns to previous scanning rate.
Resend ( Hex FE )
- Sends the previous output again. If the previous byte is RESEND, the last byte
before RESEND shall be sent.
Reset ( Hex FF )
- Responds ACK.
-Checks clock and data lines - Reset in the high state for at least 500 microseconds
or receives another command.
-Default to scan code set 2.
8•
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
6.1.6 Command to the System
The following are the keyboard output commands.
Acknowledge ( Hex FA )
The keyboard sends an acknowledge in response to any valid command from the
system except for RESEND and ECHO.
BAT Completion Code ( Hex AA )
This command is issued after successful completion of keyboard self test.
Echo ( Hex EE )
The keyboard sends this code in response to an ECHO command.
Keyboards ID ( Hex 83AB )
The 2 byte ID is issued to respond to READ ID command. The low byte is sent first,
followed by the high byte.
Keyboard buffer Overrun ( Hex 00 or FF )
If keyboard buffer overflows, the overrun code will replace the last byte in the buffer.
If the keyboard is using scan code set 1 , the code is hex FF. For sets 2 and 3, the
code is hex 00.
Resend ( Hex FE )
When the keyboard receives an invalid input or any input with incorrect parity, the
RESEND command is sent.
6.1.7 Keyboard Scan Code Table
The keyboard contains 3 scan code sets. The system defaults to scan code set 2,
but can be switched to set 1 or set 3 . The following tables show the key numbers
and three scan code sets in hexadecimal values. All the keys are typematics except
for the pause key. When a key is pressed down, the make scan code is sent to the
system. When the key is released, its break code is sent. If two or more keys are
held down, only the last key pressed repeats at the typematic rate. Typematic
operation stops when the last pressed key is released, even if other keys are being
released or some other keys are still held down.
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
9
eKK8011
USB & PS/2 Keyboard Encoder
The following table shows three scan code sets used in the keyboard.
scan code set 1
10 •
Key
Make code
Break code
Key
Make code
Break code
`(~)
29
A9
X
2D
AD
1
02
82
C
2E
AE
2
03
83
V
2F
AF
3
04
84
B
30
B0
4
05
85
N
31
B1
5
06
86
M
32
B2
6
07
87
,(<)
33
B3
7
08
88
.(>)
34
B4
8
09
89
/(?)
35
B5
9
0A
8A
SHIFT_R
36
B6
0
0B
8B
CTRL_L
1D
9D
-(-)
0C
8C
ALT_L
38
B8
=(+)
0D
8D
SPACE
39
B9
BACK SPACE
0E
8E
ALT_R
E0 38
E0 B8
TAB
0F
8F
CTRL_R
E0 1D
E0 9D
Q
10
90
NUM
45
C5
W
11
91
(7)
47
C7
E
12
92
(4)
4B
CB
R
13
93
(1)
4F
CF
T
14
94
(8)
48
C8
Y
15
95
(5)
4C
CC
U
16
96
(2)
50
D0
I
17
97
(˜)
52
D2
O
18
98
(*)
37
B7
P
19
99
(9)
49
C9
[({}
1A
9A
(6)
4D
CD
](})
1B
9B
(3)
51
D1
\(¦)@1
2B
AB
(DEL)
53
D3
CAPS
3A
BA
(-)
4A
CA
A
1E
9E
(+)
4E
CE
S
1F
9F
(ENTER)
E0 1C
E0 9C
D
20
A0
ESC
01
81
F
21
A1
F1
3B
BB
G
22
A2
F2
3C
BC
H
23
A3
F3
3D
BD
J
24
A4
F4
3E
BE
K
25
A5
F5
3F
BF
L
26
A6
F6
40
C0
;(:)
27
A7
F7
41
C1
'(")
28
A8
F8
42
C2
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Key
Make code
Break code
Key
Make code
Break code
K42 @2
2B
AB
F9
43
C3
ENTER
1C
9C
F10
44
C4
SHIFT_L
2A
AA
F11
57
D7
K45 @2
56
D6
F12
58
D8
Z
2C
AC
SCROLL
46
C6
Key
Base Case,or
Shift + Nun
Lock
Make/Break
Shift Case @3
Make/Break
Num Lock
Make/Break
INS
E0 52 / E0 D2
E0 AA E0 52 / E0 D2 E0 2A
E0 2A E0 52 / E0 D2 E0 AA
DEL
E0 53 / E0 D3
E0 AA E0 53 / E0 D3 E0 2A
E0 2A E0 53 / E0 D3 E0 AA
LEFT
E0 4B / E0 CB
E0 AA E0 4B / E0 CB E0 2A
E0 2A E0 4B / E0 CB E0 AA
HOME
E0 47 / E0 C7
E0 AA E0 47 / E0 C7 E0 2A
E0 2A E0 47 / E0 C7 E0 AA
END
E0 4F / E0 CF
E0 AA E0 4F / E0 CF E0 2A
E0 2A E0 4F / E0 CF E0 AA
UP
E0 48 / E0 C8
E0 AA E0 48 / E0 C8 E0 2A
E0 2A E0 48 / E0 C8 E0 AA
DOWN
E0 50 / E0 D0
E0 AA E0 50 / E0 D0 E0 2A
E0 2A E0 50 / E0 D0 E0 AA
PAGE UP
E0 49 / E0 C9
E0 AA E0 49 / E0 C9 E0 2A
E0 2A E0 49 / E0 C9 E0 AA
PAGE
DOWN
E0 51 / E0 D1
E0 AA E0 51 / E0 D1 E0 2A
E0 2A E0 51 / E0 D1 E0 AA
RIGHT
E0 4D / ED CD
E0 AA E0 4D / E0 CD E0 2A
E0 2A E0 4D / E0 CD E0 AA
Key
Scan Code Make/Break
Shift Case Make/Break @3
(/)
E0 35 / E0 B5
E0 AA E0 35 / E0 B5 E0 2A
Key
Scan Code Make/Break
Ctrl Case, Shift Case Make/ Break
Alt Case
Make/Break
PRINT
E0 2A E0 37 / E0 B7 E0 AA
E0 37 / E0 B7
54 / D4
Key
Make Code
Ctrl Key Pressed
PAUSE @4
E1 1D 45 E1 9D C5
E0 46 E0 C6
Key
Base Case
Make Code
Num Lock Off Case
Make Code
€ @5
E1 1D 45 E1 9D C5
E0 46 E0 C6
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
11
eKK8011
USB & PS/2 Keyboard Encoder
Note .
@1 : 101-key keyboard only.
@2 : 102-key keyboard only.
@3 : If the left Shift key is held down, the AA/2A shift make and break is sent with the
other scan codes. If the right Shift key is held down, B6/36 is sent. If both Shift
keys are down, both sets of codes are sent with the other scan code.
@4 : This key is not typematic. All associated scan codes occur on the make of the
key.
@5 : This Key is Make only. When the Num Lock is off, the encoder will send the
code which is the same as depressing Alt+0+1+2+8. When the Num Lock is on,
the encoder will send the code which is the same as depressing
Num+Alt+0+1+2+8+Num, and user will see the Num Lock LED flash one time.
scan code set 2
12 •
Key
Make code
Break code
Key
Make code
Break code
`(~)
OE
F0 OE
X
22
F0 22
1
16
F0 16
C
21
F0 21
2
1E
F0 1E
V
2A
F0 2A
3
26
F0 26
B
32
F0 32
4
25
F0 25
N
31
F0 31
5
2E
F0 2E
M
3A
F0 3A
6
36
F0 36
,(<)
41
F0 41
7
3D
F0 3D
.(>)
49
F0 49
8
3E
F0 3E
/(?)
4A
F0 4A
9
46
F0 46
SHIFT_R
59
F0 59
0
45
F0 45
CTRL_L
14
F0 14
-(-)
4E
F0 4E
ALT_L
11
F0 11
=(+)
55
F0 55
SPACE
29
F0 29
BACK SPACE
66
F0 66
ALT_R
E0 11
E0 F0 11
TAB
0D
F0 0D
CTRL_R
E0 14
E0 F0 14
Q
15
F0 15
NUM
77
F0 77
W
1D
F0 1D
(7)
6C
F0 6C
E
24
F0 24
(4)
6B
F0 6B
R
2D
F0 2D
(1)
69
F0 69
T
2C
F0 2C
(8)
75
F0 75
Y
35
F0 35
(5)
73
F0 73
U
3C
F0 3C
(2)
72
F0 72
I
43
F0 43
()
70
F0 70
O
44
F0 44
(*)
7C
F0 7C
P
4D
F0 4D
(9)
7D
F0 7D
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Key
Make code
Break code
Key
Make code
Break code
[({)
54
F0 54
(6)
74
F0 74
](})
5B
F0 5B
(3)
7A
F0 7A
\(¦)@6
5D
F0 5D
(DEL)
71
F0 71
CAPS
58
F0 58
(-)
7B
F0 7B
A
1C
F0 1C
(+)
79
F0 79
S
1B
F0 1B
(ENTER)
E0 5A
E0 F0 5A
D
23
F0 23
ESC
76
F0 76
F
2B
F0 2B
F1
05
F0 05
G
34
F0 34
F2
06
F0 06
H
33
F0 33
F3
04
F0 04
J
3B
F0 3B
F4
0C
F0 0C
K
42
F0 42
F5
03
F0 03
L
4B
F0 4B
F6
0B
F0 0B
;(:)
4C
F0 4C
F7
83
F0 83
'(")
52
F0 52
F8
0A
F0 0A
K42 @7
5D
F0 5D
F9
01
F0 01
ENTER
5A
F0 5A
F10
09
F0 09
SHIFT_L
12
F0 12
F11
78
F0 78
K45 @7
61
F0 61
F12
07
F0 07
Z
1A
F0 1A
SCROLL
7E
F0 7E
Key
Base Case,or Shift + Nun Lock
Make/Break
INS
E0 70 / E0 F0 70
DEL
E0 71 / E0 F0 71
LEFT
E0 6B / E0 F0 6B
HOME
E0 6C / E0 F0 6C
END
E0 69 / E0 F0 69
UP
E0 75 / E0 F0 75
DOWN
E0 72 / E0 F0 72
PAGE UP
E0 7D / E0 F0 7D
PAGE DOWN
E0 7A / E0 F0 7A
RIGHT
E0 74 / E0 F0 74
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
Shift Case @8
Make/Break
Num Lock
Make/Break
E0 F0 12 E0 70
E0 12 E0 70
/ E0 F0 70 E0 12
/ E0 F0 70 E0 F0 12
E0 F0 12 E0 71
E0 12 E0 71
/ E0 F0 71 E0 12
/ E0 F0 71 E0 F0 12
E0 F0 12 E0 6B
E0 12 E0 6B
/ E0 F0 6B E0 12
/ E0 F0 6B E0 F0 12
E0 F0 12 E0 6C
E0 12 E0 6C
/ E0 F0 6C E0 12
/ E0 F0 6C E0 F0 12
E0 F0 12 E0 69
E0 12 E0 69
/ E0 F0 69 E0 12
/ E0 F0 69 E0 F0 12
E0 F0 12 E0 75
E0 12 E0 75
/ E0 F0 75 E0 12
/ E0 F0 75 E0 F0 12
E0 F0 12 E0 72
E0 12 E0 72
/ E0 F0 72 E0 12
/ E0 F0 72 E0 F0 12
E0 F0 12 E0 7D
E0 12 E0 7D
/ E0 F0 7D E0 12
/ E0 F0 7D E0 F0 12
E0 F0 12 E0 7A
E0 12 E0 7A
/ E0 F0 7A E0 12
/ E0 F0 7A E0 F0 12
E0 F0 12 E0 74
E0 12 E0 74
/ E0 F0 74 E0 12
/ E0 F0 74 E0 F0 12
13
eKK8011
USB & PS/2 Keyboard Encoder
Key
Scan Code Make/Break
Shift Case Make/Break @3
(/)
E0 4A / E0 F0 4A
E0 F0 12 E0 4A/E0 F0 4A E0 12
Key
Scan Code Make/Break
Ctrl Case, Shift Case
Make/ Break
Alt Case
Make/Break
PRINT
E0 12 E0 7C / E0 F0 7C E0 F0 12
E0 7C /E0 F0 7C
84/ F0 84
Key
Make Code
Ctrl Key Pressed
PAUSE @9
E1 14 77 E1 F0 14 F0 77
E0 7E E0 F0 7E
Key
Base Case
Make Code
Num Lock Off Case
Make Code
€ @10
11 70 F0 70 69 F0 69 72 F0
72 75 F0 75 F0 11
77 F0 77 11 70 F0 70 69 F0
69 72 F0 72 75 F0 75 F0 11
77 F0 77
Note :
@6 : 101-key keyboard only.
@7 : 102-key keyboard only.
@8 : If the left Shift key is held down, the F0 12/12 shift make and break is sent with
the other scan codes. If the right Shift key is held down, F0 59/59 is sent. If
both Shift keys are down, both sets of codesare sent with the other scan code.
@9 : This key is not typematic. All associated scan codes occur on the make of the
key.
@10 : This Key is Make only. When the Num Lock is off, the encoder will send the
code which is the same as depressing Alt+0+1+2+8. When the Num Lock is on,
the encoder will send the code which is the same as depressing
Num+Alt+0+1+2+8+Num, and user will see the Num Lock LED flash one time.
14 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
scan code set 3
Key
Make code
Break code
Default Key State
`(~)
OE
F0 OE
Typematic
1
16
F0 16
Typematic
2
1E
F0 1E
Typematic
3
26
F0 26
Typematic
4
25
F0 25
Typematic
5
2E
F0 2E
Typematic
6
36
F0 36
Typematic
7
3D
F0 3D
Typematic
8
3E
F0 3E
Typematic
9
46
F0 46
Typematic
0
45
F0 45
Typematic
-(_)
4E
F0 4E
Typematic
=(+)
55
F0 55
Typematic
BACK SPACE
66
F0 66
Typematic
TAB
0D
F0 0D
Typematic
Q
15
F0 15
Typematic
W
1D
F0 1D
Typematic
E
24
F0 24
Typematic
R
2D
F0 2D
Typematic
T
2C
F0 2C
Typematic
Y
35
F0 35
Typematic
U
3C
F0 3C
Typematic
I
43
F0 43
Typematic
O
44
F0 44
Typematic
Key
Make code
Break code
Default Key State
P
4D
F0 4D
Typematic
[({}
54
F0 54
Typematic
]())
5B
F0 5B
Typematic
\(¦)@11
5C
F0 5C
Typematic
CAPS
14
F0 14
Make/Break
A
1C
F0 1C
Typematic
S
1B
F0 1B
Typematic
D
23
F0 23
Typematic
F
2B
F0 2B
Typematic
G
34
F0 34
Typematic
H
33
F0 33
Typematic
J
3B
F0 3B
Typematic
K
42
F0 42
Typematic
L
4B
F0 4B
Typematic
;(:)
4C
F0 4C
Typematic
'(")
52
F0 52
Typematic
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
15
eKK8011
USB & PS/2 Keyboard Encoder
16 •
Key
Make code
Break code
Default Key State
K42 @12
53
F0 53
Typematic
ENTER
5A
F0 5A
Typematic
SHIFT_L
12
F0 12
Make/Break
K45 @12
13
F0 13
Typematic
Z
1A
F0 1A
Typematic
X
22
F0 22
Typematic
C
21
F0 21
Typematic
V
2A
F0 2A
Typematic
B
32
F0 32
Typematic
N
31
F0 31
Typematic
M
3A
F0 3A
Typematic
,(<)
41
F0 41
Typematic
.(>)
49
F0 49
Typematic
/(?)
4A
F0 4A
Typematic
SHIFT_R
59
F0 59
Make/Break
CTRL_L
11
F0 11
Make/Break
ALT_L
19
F0 19
Make/Break
SPACE
29
F0 29
Typematic
ALT_R
39
F0 39
Make only
CTRL_R
58
F0 58
Make only
INS
67
F0 67
Make only
DEL
64
F0 64
Typematic
LEFT
61
F0 61
Typematic
HOME
6E
F0 6E
Make only
END
65
F0 65
Make only
UP
63
F0 63
Typematic
DOWN
60
F0 60
Typematic
PAGE UP
6F
F0 6F
Make only
PAGE DOWN
6D
F0 6D
Make only
RIGHT
6A
F0 6A
Typematic
NUM
76
F0 76
Make only
(7)
6C
F0 6C
Make only
(4)
6B
F0 6B
Make only
(1)
69
F0 69
Make only
(/)
77
F0 77
Make only
(8)
75
F0 75
Make only
(5)
73
F0 73
Make only
(2)
72
F0 72
Make only
()
70
F0 70
Make only
(*)
7E
F0 7E
Make only
(9)
7D
F0 7D
Make only
(6)
74
F0 74
Make only
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Key
Make code
Break code
Default Key State
(3)
7A
F0 7A
Make only
(DEL)
71
F0 71
Make only
(-)
84
F0 84
Make only
(+)
7C
F0 7C
Typematic
(ENTER)
79
F0 79
Make only
ESC
08
F0 08
Make only
F1
07
F0 07
Make only
F2
0F
F0 0F
Make only
F3
17
F0 17
Make only
F4
1F
F0 1F
Make only
F5
27
F0 27
Make only
F6
2F
F0 2F
Make only
F7
37
F0 37
Make only
F8
3F
F0 3F
Make only
F9
47
F0 47
Make only
F10
4F
F0 4F
Make only
F11
56
F0 56
Make only
F12
5E
F0 5E
Make only
PRINT
57
F0 57
Make only
SCROLL
5F
F0 5F
Make only
PAUSE
62
F0 62
Make only
Note :
@11 : 101-key keyboard only
@12 : 102-key keyboard only
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
17
eKK8011
USB & PS/2 Keyboard Encoder
New key codes for scan set 1:
New key
Make
Break
LWIN
E0 5B
E0 DB
RWIN
E0 5C
E0 DC
APP
E0 5D
E0 DD
N-CHG (131)
7B
FB
CHG (132)
79
F9
ROMA (133)
70
F0
K14
7D
FD
K56
73
F3
K107
7E
FE
KL
F1
X
KR
F0
X
POWER
E0 5E
E0 DE
SLEEP
E0 5F
E0 DF
WAKE UP
E0 63
E0 E3
New key
Make
Break
LWIN
E0 1F
E0 F0 1F
RWIN
E0 27
E0 F0 27
APP
E0 2F
E0 F0 2F
N-CHG (131)
67
F0 67
CHG (132)
64
F0 64
ROMA (133)
13
F0 13
K14
6A
F0 6A
K56
51
F0 51
K107
6D
F0 6D
KL
F1
X
KR
F2
X
POWER
E0 37
E0 F0 37
SLEEP
E0 3F
E0 F0 3F
WAKE UP
E0 5E
E0 F0 5E
New key codes for scan set 2:
18 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
New key codes for scan set 3:
New key
Make
Break
LWIN
8B
F0 8B
MAKE/BREAK
RWIN
8C
F0 8C
MAKE/BREAK
APP
8D
F0 8D
MAKE/BREAK
N-CHG (131)
85
F0 85
MAKE
CHG (132)
86
F0 86
MAKE
ROMA (133)
87
F0 87
MAKE
K14
5D
F0 5D
TYPEMATIC
K56
51
F0 51
TYPEMATIC
K107
7B
F0 7B
TYPEMATIC
KL
F1
X
KR
F2
X
POWER
X
X
SLEEP
X
X
WAKE UP
X
X
Key Function
SET1
SET2
MAKE
BREAK
MAKE
BREAK
K130 : WWWBack
E06A
E0EA
E038
E0F038
K131 : WWWForward
E069
E0E9
E030
E0F030
K132 : WWWstop
E068
E0E8
E028
E0F028
K133 : WWWRefresh
E067
E0E7
E020
E0F020
K134 : WWWSearch
E065
E0E5
E010
E0F010
K135 : WWWFavorites
E066
E0E6
E018
E0F018
K136 : WWWWeb/Home
E032
E0B2
E03A
E0F03A
K137 : Mail
E06C
E0EC
E048
E0F048
K138 : Mute
E020
E0A0
E023
E0F023
K139 : Volume-
E02E
E0AE
E021
E0F021
K140 : Volume+
E030
E0B0
E032
E0F032
K141 : Play/Pause
E022
E0A2
E034
E0F034
K142 : Stop
E024
E0A4
E03B
E0F03B
K143 : PreTrack
E010
E090
E015
E0F015
K144 : Nexttrack
E019
E099
E04D
E0F04D
K145 : Media Select
E06D
E0ED
E050
E0F050
K146 : MyComputer
E06B
E0EB
E040
E0F040
K147 : Calculator
E021
E0A1
E02B
E0F02B
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
19
eKK8011
USB & PS/2 Keyboard Encoder
6.2 USB Keyboard Function Description
We describe the USB keyboard function descriptions and data transfer in the
following section.
6.2.1 USB Keyboard Description
Device Descriptor:
Descriptor size: 0X12
Descriptor type: 0X01
USB Specification release number: 0X0110
Device class: 0X00
Device subclass: 0X00
Device Protocol: 0X00
Max package for Endpoint 0 0X08
Vendor ID: 0X1267
Product ID: 0X0101
Device Release number: 0X0100
Index of string descriptor describing manufacturer: 0X00
Index of string descriptor describing product: 0X00
Index of string descriptor describing the device’s serial number: 0X00
Number of possible configurations: 0X01
Configuration Descriptor:
Descriptor size: 0X09
Descriptor type: 0X02
Total length of data return for this configuration: 0X003B
Number of interfaces: 0X02
Value used to address this configuration: 0X01
Index of string descriptor describing this configuration: 0X00
Configuration characteristic: 0XA0
Maximum power consumption : 0X32
20 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Interface Descriptor (Interface 0)
Descriptor size: 0X09
Descriptor type: 0X04
Number of this interface: 0X00
Alternate setting: 0X00
Number of endpoints used by this interface: 0X01
Class code: 0X03
Subclass code: 0X01
Protocol code : 0X01
Index of string descriptor describing this interface: 0X00
HID Descriptor
Descriptor size: 0X09
Descriptor type: 0X21
HID Specification release number: 0X0110
Country code: 0X00
Number of class descriptors: 0X01
Type of class descriptor: 0X22
Length of report descriptor: 0X0036
Endpoint Descriptor
Descriptor size: 0X07
Descriptor type: 0X05
Endpoint’s status: 0X81
Endpoint’s attributes: 0X03
Maximum package size of this endpoint: 0X08
Interval for polling endpoint for data transfers: 0X000A
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
21
eKK8011
USB & PS/2 Keyboard Encoder
Report Descriptor (Endpoint 1)
USAGE PAGE (GENERIC DESKTOP): 0X05 0x01
USAGE (KEYBOARD): 0X09 0X06
COLLECTION (APPLICATION): 0XA1 0X01
USAGE PAGE (PAGE#FOR LEDs): 0X05 0X08
USAGE MINIMUM (1): 0X19 0X01
USAGE MAXIMUM (3): 0X29 0X03
LOGICAL MINIMUM (0): 0X15 0X00
LOGICAL MAXIMUM (1): 0X25 0X01
REPORT SIZE (1): 0X75 0X01
REPORT COUNT (3): 0X95 0X03
OUTPUT (DATA,VARIABLE,ABSOLUTE): 0X91 0X02
REPORT COUNT (5): 0X95 0X05
OUTPUT (CONSTANT): 0X91 0X01
USAGE PAGE (KEY CODES): 0X05 0X07
USAGE MINIMUM (224): 0X19 0XE0
USAGE MAXIMUM (231): 0X29 0XE7
REPORT COUNT (8): 0X95 0X08
INPUT (DATA,VARIABLE,ABSOLUTE): 0X81 0X02
REPORT SIZE (8): 0X75 0X08
REPORT COUNT (1): 0X95 0X01
INPUT (CONSTANT): 0X81 0X01
USAGE MINIMUM (0): 0X19 0X00
USAGE MAXIMUM (91): 0X29 0X91
LOGICAL MAXIMUM (FF): 0X26 0XFF 0X00
REPORT COUNT (6): 0X95 0X06
INPUT (DATA, ARRAY): 0X81 0X00
END COLLECTION: 0XC0
22 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Interface Descriptor (Interface 1)
Descriptor size: 0X09
Descriptor type: 0X04
Number of this interface: 0X01
Alternate setting: 0X00
Number of endpoints used by this interface: 0X01
Class code: 0X03
Subclass code: 0X00
Protocol code : 0X00
Index of string descriptor describing this interface: 0X00
HID Descriptor
Descriptor size: 0X09
Descriptor type: 0X21
HID Specification release number: 0X0110
Country code: 0X00
Number of class descriptors: 0X01
Type of class descriptor: 0X22
Length of report descriptor: 0X0032
Endpoint Descriptor
Descriptor size: 0X07
Descriptor type: 0X05
Endpoint’s status: 0X82
Endpoint’s attributes: 0X03
Maximum package size of this endpoint: 0X03
Interval for polling endpoint for data transfers: 0X000A
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
23
eKK8011
USB & PS/2 Keyboard Encoder
Report Descriptor (Endpoint 2)
USAGE PAGE (CONSUMER): 0X05 0X0C
USAGE (CONSUMER): 0X09 0X01
COLLECTION (APPLICATION): 0XA1 0X01
REPORT ID (01): 0X85 0X01
USAGE MINIMUM (00): 0X19 0X00
USAGE MAXIMUM (023C): 0X2A 0X3C 0X02
LOGICAL MINIMUM (0): 0X15 0X00
LOGICAL MAXIMUM (023C): 0X26 0X3C 0X02
REPORT COUNT (1): 0X95 0X01
REPORT SIZE(10): 0X75 0X10
INPUT (DATA,ARRAY,ABSOLUTE): 0X81 0X00
END COLLECTION: 0XC0
USAGE PAGE (GENERIC DESKTOP): 0X05 0X01
USAGE (SYSTEM CONTROL): 0X09 0X80
COLLECTION (APPLICATION): 0XA1 0X01
REPORT ID (2): 0X85 0X02
USAGE MINIMUM (81): 0X19 0X81
USAGE MAXIMUM (83): 0X29 0X83
LOGIC MAXIMUM (1): 0X25 0X01
REPORT SIZE (1): 0X75 0X01
REPORT COUNT (3): 0X95 0X03
INPUT (DATA,VARIABLE,ABSOLUTE): 0X81 0X02
REPORT COUNT (5): 0X95 0X05
INPUT (CONSTANT): 0X81 0X01
END COLLECTION: 0XC0
24 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
6.2.2 Led Report for USB Keyboard
When one of the LED buttoms (Num, Caps, Scroll) is pressed, the host issues a
SETUP apckage with a Set_Report request to endpoint 0 and an OUT package with
1 byte data, which indicates the LED status. The format of the 1 byte dtat is:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Constant
Constant
Constant
Kana
Compose
Scroll
Lock
Caps
Lock
Num
Lock
6.2.3 USB Keyboard Scan Code
When the keys of HID usage page 07 are pressed, the scan codes will be sent using
endpoint 1. If the keys of HID usage page 01 and 0C are pressed, the scan codes
will be sent using endpoint 2.
When the host issue an IN packet to endpoint 1 to receive data from device and the
keys of HID usage page 07 are pressed, the device return 8 bytes to the host. The 8
bytes as follow:
Byte 7
Byte 6
Byte 5
Byte 4
Byte 3
Byte 2
Byte 1
Byte 0
Key 6
Key 5
Key 4
Key 3
Key 2
Key 1
Reserved
Modifier
The modifier byte as follow:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Right
GUI
Right
Alt
Right
Shift
Right
Ctrl
Left
GUI
Left
Alt
Left
Shift
Left
Ctrl
When the host issue an IN packet to endpoint 2 to receive data from device and the
keys of HID usage page 0C(or 01) are pressed, the device return 3(or 2) bytes to the
host. The 3(or 2) bytes as follow:
HID usage page 0C:
Byte 2
Byte 1
Byte 0
Usage ID
2nd Byte
Usage ID
1st Byte
Report ID
0X01
HID usage page 01:
Byte 1
Byte 0
Usage ID
Report ID
0X02
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
25
eKK8011
USB & PS/2 Keyboard Encoder
HID Usage ID table:
26 •
Key
HID Usage
Page
HID Usage
ID
Key
HID Usage
Page
HID Usage
ID
`(~)
07
35
X
07
1B
1
07
1E
C
07
06
2
07
1F
V
07
19
3
07
20
B
07
05
4
07
21
N
07
11
5
07
22
M
07
10
6
07
23
,(<)
07
36
7
07
24
.(>)
07
37
8
07
25
/(?)
07
38
9
07
26
SHIFT_R
07
E5
0
07
27
CTRL_L
07
E0
-(-)
07
2D
ALT_L
07
E2
=(+)
07
2E
SPACE
07
2C
BACK
SPACE
07
2A
ALT_R
07
E6
TAB
07
2B
CTRL_R
07
E4
Q
07
14
NUM
07
53
W
07
1A
(7)
07
5F
E
07
08
(4)
07
5C
R
07
15
(1)
07
59
T
07
17
(8)
07
60
Y
07
1C
(5)
07
5D
U
07
18
(2)
07
5A
I
07
0C
(0)
07
62
O
07
12
(*)
07
55
P
07
13
(9)
07
61
[({}
07
2F
(6)
07
5E
]())
07
30
(3)
07
5B
\(¦)@1
07
31
(DEL)
07
63
CAPS
07
39
(-)
07
56
A
07
04
(+)
07
57
S
07
16
(ENTER)
07
58
D
07
07
ESC
07
29
F
07
09
F1
07
3A
G
07
0A
F2
07
3B
H
07
0B
F3
07
3C
J
07
0D
F4
07
3D
K
07
0E
F5
07
3E
L
07
0F
F6
07
3F
;(:)
07
33
F7
07
40
'(")
07
34
F8
07
41
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
Key
HID Usage
Page
HID Usage
ID
Key
HID Usage
Page
HID Usage
ID
K42
07
32
F9
07
42
ENTER
07
28
F10
07
43
SHIFT_L
07
E1
F11
07
44
K45
07
64
F12
07
45
Z
07
1D
SCROLL
07
47
INS
07
49
(/)
07
54
DEL
07
4C
PRINT
07
46
LEFT
07
50
PAUSE
07
48
HOME
07
4A
BREAK
END
07
4D
(PAUSE+CTRL)
07
48
UP
07
52
WWW Back
0C
0224
DOWN
07
51
WWW
Forward
0C
0225
PAGE UP
07
4B
WWW stop
0C
0226
PAGE
DOWN
07
4E
0C
0227
RIGHT
07
4F
0C
0221
WIN_L
07
E3
0C
022A
WIN_R
07
E7
WWW Home
0C
0223
APP
07
65
Mail
0C
018A
N-CHG(131)
07
8B
Mute
0C
00E2
CHG(132)
07
8A
Volume +
0C
00E9
ROMA(133)
07
88
Volume -
0C
00EA
K14
07
89
Play/Pause
0C
00CD
Key
HID Usage
Page
HID Usage
ID
Key
HID Usage
Page
HID Usage
ID
K56
07
87
Stop
0C
00B7
K107
07
85
PreTrack
0C
00B6
WWW
Refresh
WWW
Search
WWW
Favorite
KL
07
91
Nexttrack
0C
00B5
KR
07
90
Media Select
0C
0183
POWER
01
81
My Computer
0C
0194
SLEEP
01
82
Calculator
0C
0192
WAKE UP
01
83
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
27
eKK8011
USB & PS/2 Keyboard Encoder
6.3 Internal-Multi Function
Internal-Multi Func. 1:
Multi-Media Function
Fn+
(M/Mode)
Internal Function
O.S. Function
Pad_2 Volume-
Pad_Enter Web/Home
Pad_0 MyComputer
Pad_3 Play/Pause
Pad_+
Mail
Pad_1 Calculator
Pad_4 PreTrack
Pad_-
Favorites
Pad_5 Media
Pad_.
Search
Pad_6 NextTrack
Right
Forward
Pad_7 Mute
Left
Back
Pad_8 Volume+
Down
Stop
Pad_9 Stop
Up
Refresh
E
Eur Key
Internal-Multi Func. 2:
Multi-Media Function
Fn+
(M/Mode)
7
O.S. Function
Pad_Enter Volume-
F1
Web/Home
F10
MyComputer
Down
Play/Pause
F8
Mail
F11
Calculator
Left
PreTrack
F2
Favorites
F9
Media
F3
Search
Right
NextTrack
F6
Forward
F12
Mute
F7
Back
Pad_+
Volume+
F5
Stop
Up
Stop
F4
Refresh
E
Eur Key
Absolute Maximum Ratings
Parameter
Sym.
Ratings
Supply Voltage
V CC
-0.5V to +6V
Input Voltage
V IN
-0.3V to +6V
V OUT
-0.3V to +6V
Temperature under bias
TB
0℃to 70℃
Storage temperature
TS
-65℃ to 150℃
Output Voltage
28 •
Internal Function
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
eKK8011
USB & PS/2 Keyboard Encoder
8
DC Electrical Characteristics
Parameter
Sym.
Min.
Typ.
Max.
Unit
Operating voltage
V CC
4.5
5
5.5
V
Operating supply current
I CCI
10
mA
Freq. =
6MHz
Input leakage
I IN
±1
µA
V IN =V CC ,V SS
Input high voltage
V IH
Input low voltage
V IL
V
0.8
V
Output low voltage
V OL1
0.4
V
I OL1 = 10 mA
Output low voltage for LEDS
V OL2
3.0
V
I OL2 = 10 mA
Output low voltage for Mode LED
V OL3
1
V
I OL3 = 10 mA
R PH1
25
Kohm
V PH1 = 0V
R PH2
4.7
Kohm
V PH2 = 0V
Internal Pull-high resistance for D-
R PH3
1.5
Kohm
V PH3 = 0V
Output low voltage for DATA CLK
V OL3
0.4
V
I OL3 = 5 mA
Typ.
Max.
Unit
Internal Pull-high resistance ( port
6,9 )
Internal Pull-high resistance for
DATA, CLK
9
2.0
Condition
AC Electrical Characteristics
Parameter
Sym.
Min.
Time from DATA transition to falling edge of CLK
T1
5
25
µS
Time from rising edge of CLK to DATA transition
T2
5
T4 - 5
µS
Duration of CLK inactive
T3
30
40
50
µS
Duration of CLK active
T4
30
40
50
µS
50
µS
25
µS
Time to auxiliary device inhibit after clock 11 to
ensure
the auxiliary device does not start another
transmission
Time from inactive to active CLK transition, used to
time
when auxiliary device samples DATA
System clock
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
T5
T6
FCLK
5
6
MHz
29
eKK8011
USB & PS/2 Keyboard Encoder
30 •
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)