SYSTEM MANAGEMENT PRODUCTS, SCREENCODER® FAMILY DESCRIPTION ScreenCode
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ScreenCoder® UR7HCTS2-S840 SPI/Serial Interface, Low-power Touch Screen Encoder/Digitizer
SYSTEM MANAGEMENT PRODUCTS, SCREENCODER® FAMILY DESCRIPTION ScreenCoder® SPI/Serial UR7HCTS2-S840 touch screen encoder integrated digitizer works flawlessly with 4wire 8-wire resistive touch screen, regardless size manufacturer. also offers PS/2 port standard PS/2 mouse keyboard. This small-footprint single designed specifically RISCbased systems, such wireless Internet appliances. interfaces host system with either Serial Peripheral Interface (SPI) asynchronous serial. Semtech's motion algorithm highly resistant other noise, motion control smooth precise Unlike simple implementations, ScreenCoder® SPI/Serial does require complicated software drivers, processing burden placed CPU. IC's superior data processing sampling rate, ScreenCoder® SPI/Serial ideal systems requiring handwriting recognition. Thanks patented power management techniques, consumes only current most time, even with external mouse keyboard connected active. operates volts. This cost-effective solution requires external components, allowing simple real estate saving implementation. Note: External keyboard support, documented this data sheet, available only revisions 1.01 higher this FEATURES Touch screen encoder digitizer single, small footprint Exrtremely low-power operation typically consumes less than Interfaces system either Serial Peripheral Interface (SPI) asynchronous serial Works with 4-wire 8-wire resistive touch screen, regardless size, material vendor Provides high resolution 1000 points axis sampling rate Accurate, quick touch response advanced sampling technology patented algorithms APPLICATIONS Wireless Internet appliances Handheld (H/PCs) ASSIGNMENTS
RVSD1 XDAT XCLK
Highly resistant other noise sources Uses sophisticated power management maximum power savings Offers external PS/2 port hot-plug connection external PS/2 pointing device PS/2 keyboard PS/2 interfaces available Available tiny 32-pin LQFP package
phones Portable systems
RSVD2 ISEL/SCLK SOUT _PWR_DOWN
_RTS/_SS
UR7HCTS2-S840-FG LQFP
_OSCOUT OSCIN
VSS2 _RESET VREF _CTS/_ATN XPWRS
Semtech ScreenCoder registered trademarks Semtech Corporation. Self-Power Management trademark Semtech Corporation. other trademarks belong their respective companies.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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ORDERING CODE
Package Options 32-pin plastic LQFP Pitch -20° +85° UR7HCTS2-S840-FG
Other Materials ScreenCoder® SPI/Serial eval.
Type Evaluation
Order number EVK7-TS2-S840
BLOCK DIAGRAM
Left Button ASI/SPI
Right Button
ASI/SPI Communication port
Switch Interface Power Management Section
Drivers Touch Screen
Touch Panel Interface
Power-On Reset
Sense Line
Sensor Interface Timer
XCLK
8042 Emulation port Oscillator Circuit
XDAT
OSCIN
_OSCOUT
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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DEFINITIONS
Mnemonic VSS2 OSCIN Type Name Function Power supply Ground Ground Oscillator input: external clock input side ceramic resonator with built-in load capacitors Oscillator output: open external clock input other side ceramic resonator with built-in load capacitors Reset: apply provide orderly start-up External PS/2 clock: PS/2 clock signal from external PS/2 port; keep open unused External PS/2 data: PS/2 data signal from external PS/2 port; keep open unused Left button: active Right button: active Sensor's excitation driver: connect Right Sensor's excitation driver:connect Bottom Sensor's excitation driver:connect Sensor's excitation driver: connect Left Reference voltage built-in Sense line: Left Sense line: Sense line: Bottom Sense line: Right Hardware power down: high unused External PS/2 power sense: connect switched power plane external PS/2 device high external PS/2 port used; external PS/2 port unused Slave Select Ready Send: active low, host ready data Attention Clear Send: active low, request data transfer Data output: Asynchronous serial mode Interface select clock: serial Data output: mode Reserved: Keep open
_OSCOUT
_RESET XCLK XDAT XR1, YB1, YT1, XL1, VREF _PWR_DOWN XPWRS
(nd) (nd) (nd) (nd)
_SS/_RTS _ATN/_CTS SCLK/ISEL SOUT RSVD1-2
Note: underscore before mnemonic denotes active signal. Types Legend: AI=Analog Input; I=Input; O=Output; I/O=Input Output; (nd)=Input Output with N-channel Open Drain driver
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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FUNCTIONAL DESCRIPTION ScreenCoder® SPI/Serial consists functionally several major sections shown block diagram page including sensor interface, power management section, 16-bit timer, oscillator circuit, serial peripheral Interface (SPI) asynchronous serial interface (ASI). sections communicate with each other operate concurrently. OSCILLATOR ScreenCoder® SPI/Serial built-in oscillator circuit capable operating with external 4.00 clock source ceramic resonator (preferably with built-in load capacitors). Note that crystals used. ScreenCoder® SPI/Serial frequently switches oscillator order operate with least amount power consumption. very high crystal-based oscillators have exceedingly long start-up time used with ScreenCoder® SPI/Serial. EXTERNAL PS/2 INTERFACE ScreenCoder® SPI/Serial hot-pluggable, swappable, auto-detecting external PS/2 port connection standard PS/2 keyboard mouse (including wheel mouse 5-button mouse). power-up PS/2 plug, recognizes what type device plugged external device keyboard, sets keyboard default mode, scan translates incoming codes into Semtech numbers returns those host keyboard data packet. external device mouse, determines type mouse. accepts button, wheel, relative motion data from mouse returns data host relative position data packet. POWER MANAGEMENT ScreenCoder® SPI/Serial implements power management methods: Self-Power Managementand system-coordinated power management.
Self-Power ManagementSelf-Power Managementis method implemented that, independently system intervention, results lowest power consumption possible within present parameters operation. Through SelfPower ManagementTM, typically consumes only independently state host system. SelfPower Managementprimarily determines actual power consumption When host active, still operate most time only even when active external PS/2 device attached Self-Power Managementoffers three modes operation: Stop, Wait. "Stop" mode lowest power consumption mode. this mode, oscillator stopped, consumes only leakage current. This default mode which reverts when idle. "Wait" mode entered when waiting response continuation data stream from PS/2 device. Typical power consumption this mode several hundred microamperes. stays wait mode System Host request Request Send, does receive data from PS/2 device, Screen Data Packet, Mouse plug oractivity enters "Stop" mode. "Run" mode entered briefly, only process TouchButton press Screen activity, External PS/2 activity Button press event. remains this mode only while there pending tasks, such PS/2 report reception initialization PS/2 device.
STOP inactivity
Figure Self-Power ManagementState
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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POWER MANAGEMENT (CONT'D)
System-coordinated Power Management
Figure System-coordinated Power Management
Normal Operation State:
Critical Suspend
normal operation state, both _PWR_DOWN XPWRS pins high state. ScreenCoder® SPI/Serial operations controlled SelfPower ManagementTM.
_PWR_DOWN=0 _PWR_DOWN=1 XPWRS=0
_PWR_DOWN=0 _PWR_DOWN=1 XPWRS=1
Critical Suspend:
time, host negate _PWR_DOWN order force ScreenCoder® SPI/Serial into "critical suspend" mode. This signal activated (driven low) specific conditions host's operations (for example, discharged battery), actions operating system BIOS. During "critical suspend", ScreenCoder® SPI/Serial shuts down pointing activities.
Mouse power down
_PWR_DOWN=1 XPWRS=0 Normal State
_PWR_DOWN=1 XPWRS=1
External PS/2 power down:
ScreenCoder® SPI/Serial monitors state power supply rail external PS/2 pointing device through XPWRS pin. senses that external PS/2 device been powered-down host, actively eliminates shot-through current input buffers clock data lines driving both low. ScreenCoder® SPI/Serial re-initializes external PS/2 pointing device when power external PS/2 port restored.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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TOUCH SCREEN SENSOR INTERFACE ScreenCoder® SPI/Serial acquire data from four-wire eight-wire resistive touch screen sensor. sensor interface following features:
Touch detection there touch, does perform measurements does send data host system. When touch pressure detected, further qualifies determines amount pressure. Semtech's proprietary, patent-pending touch detection algorithm performs this test very quickly, accommodating sensors with various plate-to-plate capacitances. Touch Measurement Position information only collected been determined that touch pressure sufficient accurate reading. obtain position information from resistive touch screen sensor, ScreenCoder® SPI/Serial uses four internal drivers (two pins each driver) four sense lines. During sampling, drivers X-axis activated setting X-drive high other X-drive low. drivers Y-axis floating. This action produces voltage gradient across touch screen's surface direction. internal measures both voltage across activated X-plane voltage potential between planes. Next, drivers Yaxis activated while drivers X-axis floating. Again, internal measures both voltage across activated plane potential between planes. absolute position obtained from these four measurements. keeps measuring touch pressure even while positioning data being acquired. insufficient touch pressure detected during sampling position, current data rejected. Touch algorithm vibration electrical noise, data used directly. Internal data processing delivers consistent position accuracy quick touch response. Resolution ScreenCoder® SPI/Serial uses built-in converter touch position. maximum absolute position resolution 1000 points axis. Resolution varies somewhat different touch screen sensors, voltage droop connecting wires sensor's mechanical construction. Speed ScreenCoder® SPI/Serial returns reports second. Touch screen from different makers Operating parameters touch screens from different manufacturers vary depending size sensor, material made from, mechanical construction. ScreenCoder® SPI/Serial takes these properties into account, adjusts automatically plate-to-plate capacitance, intrinsic plate resistances, etc. Touch-screen's coordinates zero point touchscreen left upper corner. diagram right. Buttons ScreenCoder® SPI/Serial implements left right buttons. buttons information combined with external mouse's buttons information when sent system. Typically, buttons used, they provided development aid.
(0,0)
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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SERIAL PERIPHERAL INTERFACE (SPI) ASYNCHRONOUS SERIAL INTERFACE (SERIAL) ScreenCoder® SPI/Serial communicates using either Serial Peripheral Interface (SPI) asynchronous serial interface (Serial) depending powerup setting ISEL/SCLK pin. select asynchronous serial interface, connect ISCL/SCLK VSS. interface, SCLK must idle high. ABSOLUTE POSITION DATA PACKET
Byte Mouse Absolute Number penup penup penup penup penup
RELATIVE POSITION DATA PACKET
Data Packet Format ScreenCoder® SPI/Serial
ScreenCoder® SPI/Serial returns absolute position packets touch screen data, relative position packets external mouse data, keyboard packets external keyboard data, identification packet. each byte used synchronization; value first byte packet zero subsequent bytes.
Byte
Mouse
Relative
Number Ysign Xsign
Note bits that marked with reserved future use; currently, value these bits zero. Note data from external mouse bits. report, truncate bits. reduction based fact that increments seldom beyond range +127/-128. mouse data that exceeds this range, ScreenCoder® SPI/Serial returns +127/-128.
Mouse packets resolution absolute position bits (approximately 1000 points directions.) relative mouse data format supports operations with wheel mice 5-button mice. Keyboard packets Each keyboard packet includes 8-bit Semtech number identify key; number table this datasheet. Identification packet ScreenCoder® SPI/Serial sends special identification revision packet upon power-up. This special 4-byte packet identified first byte, 0x81.
KEYBOARD DATA PACKET
Byte Keyboard Number Caps Lock Lock Scroll Lock
Make Release
IDENTIFICATION REVISION REPORT PACKET FORMAT
Byte (See Note below) Number
Note C3-C0: Class F4-F0: Family P2-P0: Product Family V8-V0: Revision
0x0A 0x65
UR7HC S840 Current Revision 0x65 (1.01)
Note: This revision number example only. revision number subject change without change this data sheet.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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ASYNCHRONOUS SERIAL INTERFACE MODE
Baud rate:
ScreenCoder® SPI/Serial transmits data 19200 Baud, using recommended oscillator.
Protocol:
serial mode, ScreenCoder® SPI/Serial supports transmission direction only host). starts transmission system when mouse packet pending. data format start bit, data bits, parity, stop bit. ScreenCoder® SPI/Serial asserts _CTS indicate ready send packet. host asserts _RTS indicate that ready receive data. _RTS means that system receive data (e.g. UART operational). ScreenCoder® SPI/Serial places data line when detects _RTS low. When packet successfully transmitted, raises _CTS.
Notes Protocol:
assure fast transmission, system must assert _RTS soon possible. system ready receive data, need raise _RTS between packages. ScreenCoder® SPI/Serial checks _RTS after every byte transmission. _RTS returns high, means transmission unsuccessful. raises _CTS abort transmission, entire package retransmitted. maximum duration shown figure) 10ms. system cannot assert _RTS after _CTS low, raises _CTS abort transmission request. Then ScreenCoder® SPI/Serial tries start transmission again.
_CTS
_RTS
Byte
Last Byte
Figure Serial Transmission Timing
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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SERIAL PERIPHERAL INTERFACE (SPI) MODE Serial Peripheral Interface (SPI) synchronous bi-directional multi-slave protocol. mode, ScreenCoder® SPI/Serial acts slave device. supports only transmission doesn't support receiving. data transfer performed maximum clock rate kHz. SDATA outputs data every time transfer clock changes from high level.
Protocol:
ScreenCoder® SPI/Serial asserts _ATN indicate that mouse packet waiting transfer. host asserts indicate that ready receive data. means system selected ScreenCoder® SPI/Serial communication. detecting low, enables interface places data data buffer. After short delay, system supplies eight clocks data from minimum time from first clock When byte transferred successfully, system wait minimum begin clocks next byte transmission. When mouse packet been transmitted, system stops clock. needs communicate with other devices, wait _ATN return high. _ATN high means port ScreenCoder® SPI/Serial high Impedance state.
_ATN
SCLK
SDATA
Byte
Byte
Last Byte
Figure Transmission Timing: (_SS toggles every package).
Notes Protocol:
assure fast transmission, host must assert soon possible; Figure host ready receive data, need raise between packets; Figure
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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PROTOCOLS SCREENCODER® SPI/SERIAL MODE (CONT'D)
Communication Timing Parameters
Symbol Description _ATN first clock (_SS toggles every package) _ATN first clock (_SS low) Last clock transmitted byte next byte's first clock Last byte finish _ATN high 5000 5000 5000 Units
_ATN
SCLK
SDATA
Byte
Byte
Last Byte
Figure Packet Transmission Timing: (_SS always low).
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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EXT_PS2_VDD
LEFT BUTTON EXT_M_DATA EXT_M_CLOCK MDIN6_SH 47pF 47pF
RIGHT BUTTON
12µH
Notes
RSVD2 RTS/SS
_RTS
RVSD1
XDAT
SENSE_XL SENSE_YT SENSE_YB SENSE_XR XCLK
SHIELD
XPWRS
CTS/ATN
VREF
RESET
VSS2
10nF +/-10% NOT_RESET
TC54VC4502ECB
10nF +/-10%
SUGGESTED INTERFACING SCREENCODER® SPI/SERIAL ASYNCHRONOUS SERIAL MODE
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EXT_POWER_SENSE
EXT_PS2_VDD
10nF +/-10%
Notes:
S840 SCI/SPI out, 4.00 MHz, 8/4-wire Connect drive sense lines together 4-wire sensor 4.00 ceramic resonator with built-in load capacitors Crystals used
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
DRV_XL DRV_YT DRV_YB DRV_XR
UR7HCTS2-S840
ISEL/SCLK SOUT PWR_DOWN OSCOUT OSCIN 4.00MHz
_CTS
32-pin LQFP Asynchronous serial interface
Mounting holes
PWR_ON
4.7K
10µF 0.1µF
10nF +/-10%
EXT_PS2_VDD
LEFT BUTTON 12µH EXT_M_DATA EXT_M_CLOCK
RIGHT BUTTON
Notes MDIN6_SH 47pF 47pF
DRV_XL DRV_YT DRV_YB DRV_XR
RSVD2 RTS/SS ISEL/SCLK SOUT PWR_DOWN OSCOUT OSCIN VREF RESET VSS2 4.00MHz XPWRS CTS/ATN
_ATN
SHIELD
4.7K
10nF +/-10% NOT_RESET
TC54VC4502ECB
SUGGESTED INTERFACING SCREENCODER® SPI/SERIAL MODE
EXT_POWER_SENSE EXT_PS2_VDD
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10nF +/-10%
Notes:
S840 SCI/SPI out, 4.00 MHz, 8/4-wire Connect drive sense lines together 4-wire sensor 4.00 ceramic resonator with built-in load capacitors Crystals used
UR7HCTS2_S840 32-pin LQFP Interface
0.1µF 10µF
SCLK
RVSD1
XDAT
SENSE_XL SENSE_YT SENSE_YB SENSE_XR XCLK
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
Mounting holes
SOUT
PWR_ON
10nF +/-10%
10nF +/-10%
SCREENCODER® SPI/SERIAL BILL MATERIALS SCHEMATIC
UR7HCTS2-S840-FG Description Capacitors: C3-C6 ICs: Inductor: Push Buttons: SW1, Resistor Network: Resonators: Quantity Manufacturer Part# Description
Generic Generic Generic Generic
ceramic chip cap, Z5U, SMT, 1206 20V, tantalum cap, SMT, Size ceramic chip cap, SMT, NPO, X7R, 1206 10%, ceramic, NPO, Size 1206
Semtech Microchip
UR7HCTS2-S840-FG TC54VC4302EMB
ScreenCoder® SPI/Serial reset voltage detector, THD, TO-83
Generic
inductor, SMT, 1210 (3225)
Generic
Switch, 8mm, light touch,
744-083-472J
resistor, terminals,
PBRC-4.00BR
4.00 resonator,
Note: Auxiliary components shown.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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MECHANICAL INFORMATION PACKAGE
Symbol
Detail
Recommended Footprint
Dimension Millimeters 0.35 0.45 0.105 0.125 0.175
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings Ratings Supply voltage Input voltage Current drain (not including Vdd) Operating temperature UR7HCTS2-S840 Storage temperature range rating (human body model Symbol TSTG VESD Value -0.3 TLOW THIGH +125 Unit
Electrical Characteristics, Temperature range=TLOW THIGH unless otherwise noted) Characteristic Symbol Supply voltage Output voltage load) Input high voltage Input voltage Input current Supply current (VDD=5.0 VDC+/-10%, VSS=0) Control Timing (VDD=5.0 +/-10%, VSS=0 VDC, Temperature range=TLOW THIGH unless otherwise noted) Characteristic Symbol Frequency operation Ceramic resonator option fOSC External clock option fOSC
Unit
Unit
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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SEMTECH NUMBER TABLE
Name Semtech Event Overrun Error POST Fail ErrorUndefined Return Escape Backspace Space Europe (Note Scan Make None 0x00 0xFC UNASSIGNED 0x1C 0x32 0x21 0x23 0x24 0x2B 0x34 0x33 0x43 0x3B 0x42 0x4B 0x3A 0x31 0x44 0x4D 0x15 0x2D 0x1B 0x2C 0x3C 0x2A 0x1D 0x22 0x35 0x1A 0x16 0x1E 0x26 0x25 0x2E 0x36 0x3D 0x3E 0x46 0x45 0x5A 0x76 0x66 0x0D 0x29 0x4E 0x55 0x54 0x5B 0x5D 0x5D 0x4C 0x52 0x0E 0x41 0x49 Scan Break None None None UNASSIGNED 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 Name Semtech Caps Lock Print Screen (Note Scroll Lock Pause Insert Home Page Delete Page Down Right Arrow Left Arrow Down Arrow Arrow Lock Keypad Keypad Keypad Keypad Keypad Enter Keypad Keypad Down Keypad PageDn Keypad Left Keypad Keypad Right Keypad Home Keypad Keypad PageUp Keypad Insert Keypad Delete Europe (Note Keyboard Power Keypad Scan Make 0x4A 0x58 0x05 0x06 0x04 0x0C 0x03 0x0B 0x83 0x0A 0x01 0x09 0x78 0x07 0xE0 0x7E 0xE1 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0x77 0xE0 0x7C 0x7B 0x79 0xE0 0x69 0x72 0x7A 0x6B 0x73 0x74 0x6C 0x75 0x7D 0x70 0x71 0x61 0xE0 UNASSIGNED 0x0F 0x2F 0x37 0x3F UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED Scan Break 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xE0 0xF0 None 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xF0 0xE0 0xF0 0xF0 0xF0 0xE0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 0xE0 UNASSIGNED 0xF0 0xF0 0xF0 0xF0 UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED
Note These keys have various legends depending upon locale which keyboard manufactured. Europe typically AT-101 Position next Enter key. Europe typically AT-101 Position between Left Shift keys.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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SEMTECH NUMBER TABLE
Name Semtech Keyboard Execute Keyboard Help Keyboard Menu Keyboard Select Keyboard Stop Keyboard Again Keyboard Undo Keyboard Keyboard Copy Keyboard Paste Keyboard Find Keyboard Mute Keyboard Volume Up128 Keyboard Volume Dn129 Keyboard Locking Caps Lock Keyboard Locking Lock Keyboard Locking Scroll Lock Keypad (Brazilian Keypad) Keyboard Equal Sign134 Keyboard Int'l (Ro) Keyboard Intl'2 (Katakana/Hiragana) Keyboard Int'l (Yen) Keyboard Int'l (Henkan) Keyboard Int'l (Muhenkan) "Keyboard Int'l (PC9800 Keypad) Keyboard Int'l Keyboard Int'l Keyboard Int'l Keyboard Lang (Hanguel/English) Keyboard Lang (Hanja) Keyboard Lang (Katakana) Keyboard Lang (Hiragana) Keyboard Lang (Zenkaku/Hankaku) Keyboard Lang Keyboard Lang Keyboard Lang Keyboard Lang Scan Make UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0x6D UNASSIGNED 0x51 0x13 0x6A 0x64 0x67 0x27 UNASSIGNED UNASSIGNED UNASSIGNED 0xF2 0xF1 0x63 0x62 0x5F UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED Scan Break UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0xF0 UNASSIGNED 0xF0 0xF0 0xF0 0xF0 0xF0 0xF0 UNASSIGNED UNASSIGNED UNASSIGNED None None 0xF0 0xF0 0xF0 UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED Name Semtech Keyboard Alternate Erase Keyboard SysReq /Attention Keyboard Cancel Keyboard Clear Keyboard Prior Keyboard Return Keyboard Separator Keyboard Keyboard Oper Keyboard Clear /Again Keyboard CrSel /Props Keyboard ExSel Left Control Left Shift Left Left Right Control Right Shift Right Right System Power System Sleep System Wake Scan Next Track Scan Previous Track Stop Play/ Pause Mute Bass Boost Loudness Volume Volume Down Bass Bass Down Treble Treble Down Media Select Mail Calculator Computer Search Home Back Forward Stop Refresh Favorites Scan Make UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0x14 0x12 0x11 0xE0 0xE0 0x59 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 UNASSIGNED UNASSIGNED 0xE0 0xE0 UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 Scan Break UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0xF0 0xF0 0xF0 0xE0 0xE0 0xF0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 UNASSIGNED UNASSIGNED 0xE0 0xE0 UNASSIGNED UNASSIGNED UNASSIGNED UNASSIGNED 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0 0xE0
Note These keys have various legends depending upon locale which keyboard manufactured. Europe typically AT-101 Position next Enter key. Europe typically AT-101 Position between Left Shift keys.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
www.semtech.com
sales information product literature, contact: Semtech Corporation Human Interface Device (HID) System Management Division Flynn Road Camarillo, 93012-8790 sales@semtech.com http://www.semtech.com/ (805)498-2111 Telephone (805)498-3804
Copyright ©2000-2002 Semtech Corporation. rights reserved. Semtech ScreenCoder registered trademarks Semtech Corporation. Self-Power Management trademark Semtech Corporation. other trademarks belong their respective companies. INTELLECTUAL PROPERTY DISCLAIMER This specification provided with warranties whatsoever including warranty merchantability, fitness particular purpose, warranty otherwise arising proposal, specification sample. license hereby granted reproduce distribute this specification internal only. other license, expressed implied other intellectual property rights granted intended hereby. Authors this specification disclaim liability, including liability infringement proprietary rights, relating implementation information this specification. Authors this specification also warrant represent that such implementation(s) will infringe such rights.
Copyright ©2000-2002 Semtech Corporation DOC7-TS2-S840-DS-107 2002-07
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