PS/2 Keyboard Encoder DOC. VERSION ELAN MICROELECTRONICS COR
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eKK8011
PS/2 Keyboard Encoder
DOC. VERSION
ELAN MICROELECTRONICS CORP.
June 2003
Trademark Acknowledgments: registered trademark PS/2 trademark IBM. Windows trademark Microsoft Corporation. ELAN ELAN logo trademarks ELAN Microelectronics Corporation.
Copyright 2005 ELAN Microelectronics Corporation
Rights Reserved
Printed Taiwan
contents this specification subject change without further notice. ELAN Microelectronics assumes responsibility concerning accuracy, adequacy, completeness this specification. ELAN Microelectronics makes commitment update, keep current information material contained this specification. Such information material change conform each confirmed order. event shall ELAN Microelectronics made responsible claims attributed errors, omissions, other inaccuracies information material contained this specification. ELAN Microelectronics shall liable direct, indirect, special incidental, consequential damages arising from such information material. software any) described this specification furnished under license nondisclosure agreement, used copied only accordance with terms such agreement. ELAN Microelectronics products intended life support appliances, devices, systems. ELAN Microelectronics product such applications supported prohibited. PART THIS SPECIFICATION REPRODUCED TRANSMITTED FORM MEANS WITHOUT EXPRESSED WRITTEN PERMISSION ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters: Innovation Road Hsinchu Science Park Hsinchu, Taiwan 30077 Tel: +886 563-9977 Fax: +886 563-9966 http://www.emc.com.tw Hong Kong: Elan (HK) Microelectronics Corporation, Ltd. 1005B, 10/F Empire Centre Mody Road, Tsimshatsui Kowloon HONG KONG Tel: +852 2723-3376 Fax: +852 2723-7780 elanhk@emc.com.hk Shenzhen: Elan Microelectronics Shenzhen, Ltd. SSMEC Bldg., Gaoxin Ave. Shenzhen Hi-Tech Industrial Park Shenzhen, Guandong, CHINA Tel: 2601-0565 Fax: 2601-0500 USA: Elan Information Technology Group 1821 Saratoga Ave., Suite Saratoga, 95070 Tel: 366-8223 Fax: 366-8220
Europe: Elan Microelectronics Corp. (Europe) Siewerdtstrasse 8050 Zurich, SWITZERLAND Tel: 299-4060 Fax: 299-4079 http://www.elan-europe.com
Shanghai: Elan Microelectronics Shanghai Corporation, Ltd. 23/Bldg. #115 Lane 572, Bibo Road Zhangjiang Hi-Tech Park Shanghai, CHINA Tel: 5080-3866 Fax: 5080-4600
Contents
Contents
General Description Features Applications. Configuration Description. Function Description PS/2 Keyboard Function Description
6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 6.1.7 Keyboard Buffer Power-on Reset Self Test.4 Keyboard Data Output.4 Keyboard Data Input Command from System Command System.9 Keyboard Scan Code Table.9 Keyboard Description Report Keyboard Keyboard Scan Code.25
Keyboard Function Description.
6.2.1 6.2.2 6.2.3
Internal-Multi Function. Absolute Maximum Ratings Electrical Characteristics Electrical Characteristics
Product Specification (V1.0) 06.10.2003
Contents
Specification Revision History
Doc. Version Revision Description Date 2003/06/10
Product Specification (V1.0) 06.10.2003
eKK8011
PS/2 Keyboard Encoder
General Description
eKK8011A/eKK8011B microcontroller dedicated PS/2 keyboard encoder ,specially designed compatible machines. eKK8011A/eKK8011B controls scan codes, three LEDs status, scan timing communications between keyboard easy implement high performance, cost keyboard with minimal external components. Body eKK8011A EM78M611, body eKK8011B EM78611.
Features
Specification Compliance
Universal Serial Specification Version Device Class Definition Human Interface Device (HID), Firmware
Specification Version cost eliminate need external components. 6MHz frequency Phantom detects. Support scan code PS/2. Support Usage Support PS/2 keyboard. Support Sleep Mode power CMOS device technology. Internal pull-up resistor. Tri-state outputs easy board application. Support WINDOWS 2000, keys. Support multi-media other special application keyboard encoder. WINDOWS registered trademarks Microsoft corporation.
Applications
Keyboard only. PS/2 both compatible with Keyboard
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Configuration
eKK8011A (44-Pin QFP)
eKK8011B (44-Pin QFP)
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Description
Symbol SCROLL CAPS CLK/D+ DATA/DV OSCO OSCI V3.3 Function Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Column output scan line, 3-state Internal Multi-Function selection Internal Multi-Function selection Mode Ground Scroll Lock Indicator Lock Indicator Caps Lock Indicator Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) Input scan line, internal pull high 25K) CLOCK line communication internal pull high 2.2K) line communication, internal weekly pull high (2M) DATA line communication internal pull high 2.2K) line communication, internal pull high (1.5K) Power Supply Connect 6MHz Xtal 6MHz oscillation Connect 6MHz Xtal 6MHz oscillation 3.3V output
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Function Description
PS/2 keyboard function descriptions provided Section 6.1. section 6.2, provide keyboard function descriptions.
PS/2 Keyboard Function Description
describe keyboard buffer, power-on Reset self test, input, output, command, scan codes following sections.
6.1.1 Keyboard Buffer
keyboard will buffer bytes first-in-first-out order when system able receive scan codes from keyboard. response codes repeated codes will buffered. keystrokes generate multiple-byte sequence, entire sequence must into buffer keystroke discarded buffer-overrun condition occurs.
6.1.2 Power-on Reset Self Test
duration keyboard Power-on-Reset(POR) should within milliseconds seconds after power applied keyboard. After executing keyboard executes self test. LEDs turned beginning self test. self test takes minimum milliseconds maximum milliseconds. self test successful, completion code sent system keyboard starts scanning. self test fails, error code sent, keyboard disabled waits command from system. completion codes sent between milliseconds seconds after POR, between milliseconds after RESET command acknowledged.
6.1.3 Keyboard Data Output
When keyboard ready send data system, first checks clock data lines. either state, data stored keyboard buffer. both high state, keyboard starts clocking data out. Data will valid before trailing edge after leading edge clock pulse. During transmission keyboard checks clock line least every microseconds system lowers clock lines before leading edge 10th clock, keyboard should stop sending, then buffer data return clock data lines high state.
6.1.4 Keyboard Data Input
When system ready send data keyboard, first checks clock line keyboard sending data. keyboard sending data sending data reached 10th clock, system inhibit interface forcing clock line more than microseconds prepares send data.
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
keyboard checks clock line status least every milliseconds. system Request Send(RTS) detected, keyboard clocks bits After 10th bit, keyboard checks high state data line then pulls clocks more signal system that data been received. data after 10th bit, indicates frame error. keyboard should continue count until data line goes high, then pulls issues RESEND system.
6.1.5 Command from System
system send commands keyboard time. keyboard needs respond within milliseconds, unless system prevents keyboard output, when doing self test executing RESET. following keyboard input commands actions that keyboard needs take.
/Reset Status indicators Responds ACK. Receives option byte. Responds ACK. Updates status indicators. Returns previous scanning state.
Echo Responds with hex. Returns previous scanning state.
Invalid commands Returns RESEND command. Returns previous scanning state.
Select Alternate Scan Codes Responds ACK. Clears output buffer. Sets default typematic rate/delay. Clears last typematic key. Receives option byte.
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Responds ACK. Option byte selects scan code selects scan code selects scan code Returns previous scanning rate.
Read (F2) Responds with ACK. Discontinues scanning. Sends bytes. second byte will sent within after first byte. Resumes scanning. Typematic Rate/Delay Responds ACK. Receives rate/delay value byte Responds ACK. rate/delay Note Returns previous scanning state.
Note
Repeat period 2^B) 0.00417 seconds binary value bits binary value bits Delay milliseconds binary value bits always
00000 00001 00010 00011 00100 00101 00110 00111 Typematic rate ±20% 30.0 26.7 24.0 21.8 20.0 18.5 17.1 16.0 10000 10001 10010 10011 10100 10101 10110 10111 typematic rate ±20%
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
01000 01001 01010 01011 01100 01101 01110 01111
Typematic rate ±20% 15.0 13.3 12.0 10.9 10.0
11000 11001 11010 11011 11100 11101 11110 11111
typematic rate ±20%
Default rate 10.9 chars/sec Default delay ±20%
Enable Responds with ACK. Clears output buffer. Clears last typematic key. Start scanning.
Default Disable (Hex Responds with ACK. Resets conditions power-on state. Clears output buffer. Sets default type scan code only default typematic rate/delay. Clears last typematic key. Stops scanning,
Default (Hex Responds with ACK. Resets conditions power-on state. Clears output buffer. Sets default type scan code only default typematic rate/delay. Clears last typematic key. Continues scanning,
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Keys F7,F8,F9,FA Responds ACK. Clears output buffer. Sets type (affect only scan code operation). Typematic Make/Break Make Typematic/Make/Break Returns previous scanning rate.
Type FB,FC,FD Responds ACK. Clears output buffer. Receives byte Responds ACK. Sets type (affect only scan code operation). Typematic Make/Break Make Returns previous scanning rate.
Resend Sends previous output again. previous byte RESEND, last byte before RESEND shall sent. Reset Responds ACK. -Checks clock data lines Reset high state least microseconds receives another command. -Default scan code
Product Specification (V1.0) 06.10.2003
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eKK8011
PS/2 Keyboard Encoder
6.1.6 Command System
following keyboard output commands. Acknowledge keyboard sends acknowledge response valid command from system except RESEND ECHO.
Completion Code This command issued after successful completion keyboard self test.
Echo keyboard sends this code response ECHO command.
Keyboards 83AB byte issued respond READ command. byte sent first, followed high byte.
Keyboard buffer Overrun keyboard buffer overflows, overrun code will replace last byte buffer. keyboard using scan code code sets code
Resend When keyboard receives invalid input input with incorrect parity, RESEND command sent.
6.1.7 Keyboard Scan Code Table
keyboard contains scan code sets. system defaults scan code switched following tables show numbers three scan code sets hexadecimal values. keys typematics except pause key. When pressed down, make scan code sent system. When released, break code sent. more keys held down, only last pressed repeats typematic rate. Typematic operation stops when last pressed released, even other keys being released some other keys still held down.
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
following table shows three scan code sets used keyboard. scan code
`(~) -(-) =(+) BACK SPACE [({} ](}) CAPS ;(:) '(") Make code Break code ,(<) .(>) /(?) SHIFT_R CTRL_L ALT_L SPACE ALT_R CTRL_R (DEL) (ENTER) Make code Break code
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
ENTER SHIFT_L
Make code
Break code
SCROLL
Make code
Break code
Base Case,or Shift Lock Make/Break
Shift Case Make/Break
Lock Make/Break
LEFT HOME DOWN PAGE PAGE DOWN RIGHT
Scan Code Make/Break
Shift Case Make/Break
Scan Code Make/Break
Ctrl Case, Shift Case Make/ Break
Case Make/Break
PAUSE
Make Code
Ctrl Pressed
Base Case Make Code
Lock Case Make Code
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Note 101-key keyboard only. 102-key keyboard only. left Shift held down, AA/2A shift make break sent with other scan codes. right Shift held down, B6/36 sent. both Shift keys down, both sets codes sent with other scan code. This typematic. associated scan codes occur make key. This Make only. When Lock off, encoder will send code which same depressing Alt+0+1+2+8. When Lock encoder will send code which same depressing Num+Alt+0+1+2+8+Num, user will Lock flash time.
scan code
`(~) -(-) =(+) BACK SPACE Make code Break code ,(<) .(>) /(?) SHIFT_R CTRL_L ALT_L SPACE ALT_R CTRL_R Make code Break code
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
[({) ](}) CAPS ;(:) '(") ENTER SHIFT_L
Make code
Break code
(DEL) (ENTER) SCROLL
Make code
Break code
LEFT HOME DOWN PAGE PAGE DOWN RIGHT
Base Case,or Shift Lock Make/Break
Shift Case Make/Break
Lock Make/Break
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Scan Code Make/Break
Shift Case Make/Break 4A/E0
Scan Code Make/Break
Ctrl Case, Shift Case Make/ Break
Case Make/Break
PAUSE
Make Code
Ctrl Pressed
Base Case Make Code
Lock Case Make Code
Note 101-key keyboard only. 102-key keyboard only. left Shift held down, 12/12 shift make break sent with other scan codes. right Shift held down, 59/59 sent. both Shift keys down, both sets codesare sent with other scan code. This typematic. associated scan codes occur make key. This Make only. When Lock off, encoder will send code which same depressing Alt+0+1+2+8. When Lock encoder will send code which same depressing Num+Alt+0+1+2+8+Num, user will Lock flash time.
Product Specification (V1.0) 06.10.2003
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eKK8011
PS/2 Keyboard Encoder
scan code
`(~) -(_) =(+) BACK SPACE [({} ]()) CAPS ;(:) '(") Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
Make code Make code
Break code Break code
Default State Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Default State Typematic Typematic Typematic Typematic Make/Break Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic
eKK8011
PS/2 Keyboard Encoder
ENTER SHIFT_L ,(<) .(>) /(?) SHIFT_R CTRL_L ALT_L SPACE ALT_R CTRL_R LEFT HOME DOWN PAGE PAGE DOWN RIGHT
Make code
Break code
Default State Typematic Typematic Make/Break Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Typematic Make/Break Make/Break Make/Break Typematic Make only Make only Make only Typematic Typematic Make only Make only Typematic Typematic Make only Make only Typematic Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
(DEL) (ENTER) PRINT SCROLL PAUSE
Make code
Break code
Default State Make only Make only Make only Typematic Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only Make only
Note 101-key keyboard only 102-key keyboard only
Product Specification (V1.0) 06.10.2003
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eKK8011
PS/2 Keyboard Encoder
codes scan
LWIN RWIN N-CHG (131) (132) ROMA (133) K107 POWER SLEEP WAKE Make Break
codes scan
LWIN RWIN N-CHG (131) (132) ROMA (133) K107 POWER SLEEP WAKE Make Break
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
codes scan
LWIN RWIN N-CHG (131) (132) ROMA (133) K107 POWER SLEEP WAKE Make Break MAKE/BREAK MAKE/BREAK MAKE/BREAK MAKE MAKE MAKE TYPEMATIC TYPEMATIC TYPEMATIC
Function K130 WWWBack K131 WWWForward K132 WWWstop K133 WWWRefresh K134 WWWSearch K135 WWWFavorites K136 WWWWeb/Home K137 Mail K138 Mute K139 VolumeK140 Volume+ K141 Play/Pause K142 Stop K143 PreTrack K144 Nexttrack K145 Media Select K146 MyComputer K147 Calculator
SET1 MAKE E06A E069 E068 E067 E065 E066 E032 E06C E020 E02E E030 E022 E024 E010 E019 E06D E06B E021 BREAK E0EA E0E9 E0E8 E0E7 E0E5 E0E6 E0B2 E0EC E0A0 E0AE E0B0 E0A2 E0A4 E090 E099 E0ED E0EB E0A1 MAKE E038 E030 E028 E020 E010 E018 E03A E048 E023 E021 E032 E034 E03B E015 E04D E050 E040 E02B
SET2 BREAK E0F038 E0F030 E0F028 E0F020 E0F010 E0F018 E0F03A E0F048 E0F023 E0F021 E0F032 E0F034 E0F03B E0F015 E0F04D E0F050 E0F040 E0F02B
Product Specification (V1.0) 06.10.2003
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eKK8011
PS/2 Keyboard Encoder
Keyboard Function Description
describe keyboard function descriptions data transfer following section.
6.2.1 Keyboard Description
Device Descriptor: Descriptor size: 0X12 Descriptor type: 0X01 Specification release number: 0X0110 Device class: 0X00 Device subclass: 0X00 Device Protocol: 0X00 package Endpoint 0X08 Vendor 0X1267 Product 0X0101 Device Release number: 0X0100 Index string descriptor describing manufacturer: 0X00 Index string descriptor describing product: 0X00 Index string descriptor describing device's serial number: 0X00 Number possible configurations: 0X01
Configuration Descriptor: Descriptor size: 0X09 Descriptor type: 0X02 Total length data return this configuration: 0X003B Number interfaces: 0X02 Value used address this configuration: 0X01 Index string descriptor describing this configuration: 0X00 Configuration characteristic: 0XA0 Maximum power consumption 0X32
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Interface Descriptor (Interface Descriptor size: 0X09 Descriptor type: 0X04 Number this interface: 0X00 Alternate setting: 0X00 Number endpoints used this interface: 0X01 Class code: 0X03 Subclass code: 0X01 Protocol code 0X01 Index string descriptor describing this interface: 0X00
Descriptor Descriptor size: 0X09 Descriptor type: 0X21 Specification release number: 0X0110 Country code: 0X00 Number class descriptors: 0X01 Type class descriptor: 0X22 Length report descriptor: 0X0036
Endpoint Descriptor Descriptor size: 0X07 Descriptor type: 0X05 Endpoint's status: 0X81 Endpoint's attributes: 0X03 Maximum package size this endpoint: 0X08 Interval polling endpoint data transfers: 0X000A
Product Specification (V1.0) 06.10.2003
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eKK8011
PS/2 Keyboard Encoder
Report Descriptor (Endpoint 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 COLLECTION: 0XC0
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Interface Descriptor (Interface Descriptor size: 0X09 Descriptor type: 0X04 Number this interface: 0X01 Alternate setting: 0X00 Number endpoints used this interface: 0X01 Class code: 0X03 Subclass code: 0X00 Protocol code 0X00 Index string descriptor describing this interface: 0X00
Descriptor Descriptor size: 0X09 Descriptor type: 0X21 Specification release number: 0X0110 Country code: 0X00 Number class descriptors: 0X01 Type class descriptor: 0X22 Length report descriptor: 0X0032
Endpoint Descriptor Descriptor size: 0X07 Descriptor type: 0X05 Endpoint's status: 0X82 Endpoint's attributes: 0X03 Maximum package size this endpoint: 0X03 Interval polling endpoint data transfers: 0X000A
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Report Descriptor (Endpoint USAGE PAGE (CONSUMER): 0X05 0X0C USAGE (CONSUMER): 0X09 0X01 COLLECTION (APPLICATION): 0XA1 0X01 REPORT (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 COLLECTION: 0XC0 USAGE PAGE (GENERIC DESKTOP): 0X05 0X01 USAGE (SYSTEM CONTROL): 0X09 0X80 COLLECTION (APPLICATION): 0XA1 0X01 REPORT (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 COLLECTION: 0XC0
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
6.2.2 Report Keyboard
When buttoms (Num, Caps, Scroll) pressed, host issues SETUP apckage with Set_Report request endpoint package with byte data, which indicates status. format byte dtat
Constant Constant Constant Kana Compose Scroll Lock Caps Lock Lock
6.2.3 Keyboard Scan Code
When keys usage page pressed, scan codes will sent using endpoint keys usage page pressed, scan codes will sent using endpoint When host issue packet endpoint receive data from device keys usage page pressed, device return bytes host. bytes follow:
Byte Byte Byte Byte Byte Byte Byte
Reserved
Byte Modifier
modifier byte follow:
Right Right Right Shift Right Ctrl Left Left Left Shift Left Ctrl
When host issue packet endpoint receive data from device keys usage page 0C(or pressed, device return 3(or bytes host. 3(or bytes follow: usage page
Byte Usage Byte Byte Usage Byte Byte Report 0X01
usage page
Byte Usage Byte Report 0X02
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Usage table:
`(~) -(-) =(+) BACK SPACE [({} ]()) CAPS ;(:) '(") Usage Page Usage ,(<) .(>) /(?) SHIFT_R CTRL_L ALT_L SPACE ALT_R CTRL_R (DEL) (ENTER) Usage Page Usage
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
ENTER SHIFT_L LEFT HOME DOWN PAGE PAGE DOWN RIGHT WIN_L WIN_R N-CHG(131) CHG(132) ROMA(133) K107 POWER SLEEP WAKE
Usage Page Usage Page
Usage Usage
SCROLL PRINT PAUSE
BREAK (PAUSE+CTRL)
Usage Page Usage Page
Usage 0224 0225 0226 0227 0221 022A 0223 018A 00E2 00E9 00EA 00CD Usage 00B7 00B6 00B5 0183 0194 0192
Back Forward stop Refresh Search Favorite Home Mail Mute Volume Volume Play/Pause Stop PreTrack Nexttrack Media Select
Computer
Calculator
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Internal-Multi Function
Internal-Multi Func.
Multi-Media Function (M/Mode) Pad_2 VolumePad_3 Play/Pause Pad_4 PreTrack Pad_5 Media Pad_6 NextTrack Pad_7 Mute Pad_8 Volume+ Pad_9 Stop Internal Function Pad_Enter Web/Home Pad_+ Pad_Pad_. Right Left Down Mail Favorites Search Forward Back Stop Refresh O.S. Function Pad_0 MyComputer Pad_1 Calculator
Internal-Multi Func.
Multi-Media Function (M/Mode) Pad_Enter VolumeDown Left Right Pad_+ Play/Pause PreTrack Media NextTrack Mute Volume+ Stop Internal Function Web/Home Mail Favorites Search Forward Back Stop Refresh O.S. Function MyComputer Calculator
Absolute Maximum Ratings
Parameter Supply Voltage Input Voltage Output Voltage Temperature under bias Storage temperature Sym. Ratings -0.5V -0.3V -0.3V
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Electrical Characteristics
Parameter Operating voltage Operating supply current Input leakage Input high voltage Input voltage Output voltage Output voltage LEDS Output voltage Mode Internal Pull-high resistance port Internal Pull-high resistance DATA,
Internal Pull-high resistance
Sym.
Min.
Typ.
Max.
Unit
Condition
Freq. 6MHz
Kohm Kohm Kohm
Output voltage DATA
Electrical Characteristics
Parameter Time from DATA transition falling edge Time from rising edge DATA transition Duration inactive Duration active Time auxiliary device inhibit after clock ensure auxiliary device does start another transmission Time from inactive active transition, used time when auxiliary device samples DATA System clock Sym. Min. Typ. Max.
Unit
FCLK
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
eKK8011
PS/2 Keyboard Encoder
Product Specification (V1.0) 06.10.2003
(This specification subject change without further notice)
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