HT82M39A 3-Key 3D PS/2 Mouse Controller Feature · Microsoft Intelli 3D PS/2 and IBM PS/2 mouse com- · Z axis can support two kinds of scroller input patible (optomechanical and mechanical) · Supports rolling buttons in PS/2 mouse mode · 2MHz RC oscillator for system frequency with an ex- ternal pull-high resistor · X/Y axis photo input with built-in Holtek¢s special dy- · 16-pin DIP package namic photo-input resistor · Supports three buttons and three axis (X, Y, Z) in- puts General Description The HT82M39A is a Plug and Play PS/2 3D mouse controller. It is compatible with Microsoft Intelli 3D PS/2 mouse. The Z axis can support two kinds of scroller input, namely; optomechanical and mechanical. Pin Assignment Z 1 1 1 6 Y 2 Z 2 2 1 5 Y 1 V D D 3 1 4 X 2 N C 4 1 3 X 1 V S S 5 1 2 T E S T O S C I 6 1 1 L B C L K 7 1 0 R 0 D A T A 8 9 R B H T 8 2 M 3 9 A 1 6 D IP -A Pin Description Pin No. Pin Name I/O Description I ²Z² axis input supports two kinds of scroller input; optomechanical and mechanical. 1, 2 Z1, Z2 3 VDD ¾ Positive power supply 4 NC ¾ No connection 5 VSS ¾ Negative power supply, ground 6 OSCI I 2MHz RC oscillator for system frequency with external pull-high resistor and built-in C 7 CLK I/O ²CLK I/O²: PS/2 mouse CLK line. NMOS open drain output with 5kW pull-high resistor. 8 DATA I/O ²DATA I/O²: PS/2 mouse DATA line. NMOS open drain output with 5kW pull-high resistor. 9~11 RB, RO, LB I Right Button: Normal pull-low (50kW), Pressing the button connects to high. Rolling Button: Normal pull-low (50kW), Pressing the button connects to high. Left Button: Normal pull-low (50kW), Pressing the button connects to high. 12 TEST I For IC manufacture testing, user should leave it floating. 13~16 X1, X2, Y1, Y2 I X/Y axis photo input with built-in Holtek¢s special dynamic photo input resistor Rev. 1.40 1 September 23, 2005 HT82M39A Absolute Maximum Ratings Supply Voltage .........................................-0.3V to 6.5V Storage Temperature ............................-50°C to 125°C Input Voltage..............................VSS-0.3V to VDD+0.3V Operating Temperature...........................-25°C to 70°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics Symbol Ta=25°C Test Conditions Parameter VDD Conditions ¾ Min. Typ. Max. Unit 4.75 5.0 5.25 V VDD Operating Voltage ¾ IOP Operating Current 5V ROSC=130kW ¾ ¾ 15 mA fOSC RC Oscillator 5V ROSC=130kW 1.6 2 2.4 MHz VIL1 Input Low Voltage (Z1, Z2) 5V ¾ 0 ¾ 1.5 V VIH1 Input High Voltage (Z1, Z2) 5V ¾ 2.2 ¾ 5 V VIL2 Input Low Voltage (CLK, DATA) 5V ¾ 0 ¾ 0.8 V VIH2 Input High Voltage (CLK, DATA) 5V ¾ 2.0 ¾ 5.0 V RPH2 Pull-high Resistor (CLK, DATA) 5V VIL=0V 2 5 10 kW Isink Sink Current (CLK, DATA) 5V VOH=0.4V 4 ¾ ¾ mA VIL3 Input Low Voltage (RB, Ro, LB) 5V ¾ 0 ¾ 1.0 V VIH3 Input High Voltage (RB, Ro, LB) 5V ¾ 1.8 ¾ 5 V RPL3 Pull-low Resistor (RB, Ro, LB) 5V 3.0 60 125 kW VIL4 Input Low Voltage (X1,X2,Y1,Y2) 5V ¾ 0 ¾ 1.5 V VIH4 Input high Voltage (X1, X2, Y1, Y2) 5V ¾ 2.2 ¾ 5 V RPL5 Dynamic Photo-resistor (X1, X2, Y1, Y2, Z1, Z2) 5V ¾ VIL=0V See Dynamic resistor characteristics Dynamic Resistor Characteristics · R-V curve Photo_R: R-V R V Rev. 1.40 2 September 23, 2005 HT82M39A Functional Description PS/2 Mouse The x/y data report is 9-bit 2¢s complement · PS/2 status byte The z data report is 8-bit 2¢s complement Byte 1 bit 7: Reserved 6: 0=Stream Mode, 1=Remote Mode 5: 0=Disabled, 1=Enabled 4: 0=Scaling 1:1, 1=Scaling 2:1 3: 1=Wrap Mode, 0=Stream or Remote (different from IBM specs.) 2: 1=Left Button Pressed 1: 1=Middle Button Pressed 0: 1=Right Button Pressed Byte 2 Bit 0~7 current resolution setting (Bit 0=LSB) Byte 3 Bit 0~7 current sampling rate (Bit 0=LSB) X movement towards the right is positive, moving towards the left is negative Y upward movement is positive, moving down is negative Z rolling towards the user is positive, else negative Button status: 1=pressed, 0=released · Mouse mode changes between Standard and 3D PS/2 mode Sending the commands in the following sequence will set the mouse to 3D PS/2 mode. · Standard PS/2 data format Variable rps, 0, 8, 1, bidirectional, synchronous Bit No. 7 6 5 4 3 2 1 0 1 M R L 1st word YV XV YS XS 2nd word X7 X6 X5 X4 X3 X2 X1 X0 3rd word Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 · Data format for 3D PS/2 Variable rps, 0, 8, 1, bidirectional, synchronous Bit No. 7 6 5 4 1st word YV XV YS 2nd word X7 X6 X5 3rd word Y7 Y6 4th word Z7 Z6 Rev. 1.40 3 2 1 XS 1 Ro R L X4 X3 X2 X1 X0 Y5 Y4 Y3 Y2 Y1 Y0 Z5 Z4 Z3 Z2 Z1 Z0 Command Response From Mouse F3h FAh C8h FAh F3h FAh 64h FAh F3h FAh 50h FAh F2h FAh, 03h ¨ Any time the PC sends a reset ²FFh² command to the mouse, it will reset the mouse to Standard PS/2 mode. ¨ After power-on reset is initiated, the mouse is set to Standard PS/2 mode. 0 3 September 23, 2005 HT82M39A Timing Diagrams X, Y Axis Photo-Coupler Crossed Width X 1 (Y 1 ) (Z 1 ) X 2 (Y 2 ) (Z 2 ) tp tr tf N o te : F o r X , Y - a x is tr, tp , tf > 3 0 m s F o r Z - a x is tr, tp , tf > 1 m s X/Y/Z Axis Counting X 1 X 2 + 1 + 1 + 1 + 1 -1 -1 -1 -1 Z 1 Z 2 + 1 Rev. 1.40 + 1 -1 -1 4 September 23, 2005 HT82M39A PS/2 Mouse · Data output (1 ) (3 ) (3 ) 1 s t C L K C L K T 3 (3 ) (3 ) 1 0 th C L K (4 ) T 6 1 1 th C L K (5 ) T 5 T 4 (7 ) T 2 T 1 (2 ) 2 n d C L K D A T A S ta r t B it B it 0 P a r ity B it S to p B it (6 ) T im in g P a r a m e te r M in ./M a x . T 1 D A T A tr a n s itio n to th e fa llin g e d g e o f C L K 5 /2 5 m s e c T 2 R is in g e d g e o f C L K to D A T A tr a n s itio n 5 /T 4 -5 m s e c T 3 In a c tiv e C L K D u r a tio n 3 0 /5 0 m s e c T 4 A c tiv e C L K D u r a tio n M in im u m tim e to in h ib it M O U S E a fte r c lo c k 1 1 3 0 /5 0 m s e c > 0 m s e c M a x im u m tim e to in h ib it M O U S E a fte r c lo c k 1 1 to e n s u r e M O U S E d o e s n o t s ta r t a n o th e r tr a n s m is s io n < 5 0 m s e c T 5 T 6 · Data input (1 ) (2 ) I/O In h ib it C L K (4 ) 1 s t C L K 2 n d C L K T 7 1 0 th C L K 9 th C L K (8 ) T 8 T 9 D A T A S ta r t B it (3 ) 1 1 th C L K (6 ) B it 0 P a r ity B it (5 ) (5 ) S to p B it (7 ) T im in g P a r a m e te r M in ./M a x . T 7 C L K D u r a tio n , lo w 3 0 /5 0 m s e c T 8 C L K D u r a tio n , h ig h 3 0 /5 0 m s e c T 9 T im e fr o m lo w to h ig h C L K tr a n s itio n to tim e w h e n M O U S E s a m p le s D A T A lin e 5 /2 5 m s e c Rev. 1.40 5 September 23, 2005 HT82M39A Application Circuits HT82M39A Z Axis Optomechanical (This Application Circuit is for Reference Only) V 0 .1 m F IR D D 1 0 0 m F 1 3 0 k W IR R 1 2 3 4 5 7 4 7 0 p F C L K D A T A Y 2 Z 2 Y 1 V D D X 2 N C X 1 V S S 6 8 Z 1 1 5 1 4 1 3 1 2 T E S T O S C I L B C L K R o D A T A R B 1 1 S 1 1 0 S 2 9 S 3 IR R H T 8 2 M 3 9 A 6 8 W 6 8 W 1 6 4 7 0 p F HT82M39A Z Axis Mechanical (This Application Circuit is for Reference Only) V 0 .1 m F D D 1 0 0 m F 1 3 0 k W IR Z - a x is M e c h n ic a l E e n c o d e r 1 2 3 4 5 7 8 6 8 W C L K D A T A Note: 6 8 W Y 2 Z 2 Y 1 V D D X 2 N C X 1 V S S 6 4 7 0 p F Z 1 1 6 1 5 1 4 1 3 1 2 T E S T O S C I L B C L K R o D A T A R B 1 1 S 1 1 0 S 2 9 S 3 IR R H T 8 2 M 3 9 A 4 7 0 p F R depends on IR characteristics, R=1K for reference only Rev. 1.40 6 September 23, 2005 HT82M39A Package Information 16-pin DIP (300mil) Outline Dimensions A B 1 6 9 8 1 H C D a G E I F Symbol A Rev. 1.40 Dimensions in mil Min. Nom. Max. 745 ¾ 775 B 240 ¾ 260 C 125 ¾ 135 D 125 ¾ 145 E 16 ¾ 20 F 50 ¾ 70 G ¾ 100 ¾ H 295 ¾ 315 I 335 ¾ 375 a 0° ¾ 15° 7 September 23, 2005 HT82M39A Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor (China) Inc. (Dongguan Sales Office) Building No. 10, Xinzhu Court, (No. 1 Headquarters), 4 Cuizhu Road, Songshan Lake, Dongguan, China 523808 Tel: 86-769-2626-1300 Fax: 86-769-2626-1311 Holtek Semiconductor (USA), Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538, USA Tel: 1-510-252-9880 Fax: 1-510-252-9885 http://www.holtek.com Copyright Ó 2005 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.40 8 September 23, 2005