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 [email protected] 1821 Saratoga Ave., Suite 250 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 23/Bldg. #115 Lane 572, Bibo Road Zhangjiang Hi-Tech Park 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)