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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
* Supports rolling buttons in PS/2 mouse mode * X/Y axis photo input with built-in Holteks special dy-
(optomechanical and mechanical)
* 2MHz RC oscillator for system frequency with an ex-
ternal pull-high resistor
* 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
Z1 1 2 3 4 5 6 7 8 Z2 VDD NC VSS OSCI CLK DATA 16 15 14 13 12 11 10 9 Y2 Y1 X2 X1 TEST LB R0 RB
HT82M 39A 1 6 D IP -A
Pin Description
Pin No. 1, 2 3 4 5 6 7 8 Pin Name Z1, Z2 VDD NC VSS OSCI CLK DATA I/O I Description Z axis input supports two kinds of scroller input; optomechanical and mechanical.
3/4 Positive power supply 3/4 No connection 3/4 Negative power supply, ground I I/O I/O 2MHz RC oscillator for system frequency with external pull-high resistor and built-in C CLK I/O: PS/2 mouse CLK line. NMOS open drain output with 5kW pull-high resistor. DATA I/O: PS/2 mouse DATA line. NMOS open drain output with 5kW pull-high resistor. 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. For IC manufacture testing, user should leave it floating. X/Y axis photo input with built-in Holteks special dynamic photo input resistor
9~11
RB, RO, LB
I
12 13~16
TEST X1, X2, Y1, Y2
I I
Rev. 1.20
1
August 20, 2002
HT82M39A
Absolute Maximum Ratings
Supply Voltage .........................................-0.3V to 6.5V Input Voltage..............................VSS-0.3V to VDD+0.3V Storage Temperature ............................-50C to 125C Operating Temperature...........................-25C to 70C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings 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 VDD IOP fOSC VIL1 VIH1 VIL2 VIH2 RPH2 Isink VIL3 VIH3 RPL3 VIL4 VIH4 RPL5 Parameter Operating Voltage Operating Current RC Oscillator Input Low Voltage (Z1, Z2) Input High Voltage (Z1, Z2) Input Low Voltage (CLK, DATA) Input High Voltage (CLK, DATA) Pull-high Resistor (CLK, DATA) Sink Current (CLK, DATA) Input Low Voltage (RB, Ro, LB) Input High Voltage (RB, Ro, LB) Pull-low Resistor (RB, Ro, LB) Input Low Voltage (X1,X2,Y1,Y2) Input high Voltage (X1, X2, Y1, Y2) Dynamic Photo-resistor (X1, X2, Y1, Y2, Z1, Z2) Test Conditions VDD 3/4 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V VIL=0V 3/4 3/4 3/4 VIL=0V VOH=0.4V 3/4 3/4 Conditions 3/4 ROSC=120kW ROSC=120kW 3/4 3/4 3/4 3/4 Min. 4.75 3/4 1.6 0 2.2 0 2.0 2 4 0 1.8 3.0 0 2.2 Typ. 5.0 3/4 2 3/4 3/4 3/4 3/4 5 3/4 3/4 3/4 60 3/4 3/4 Max. 5.25 15 2.2 1.5 5 0.8 5.0 10 3/4 1.0 5 125 1.5 5
Ta=25C Unit V mA V V V V V kW mA V V kW V V
See Dynamic resistor characteristics
Dynamic resistor characteristics
* R-V curve
Photo_R: R-V
R
V
Rev. 1.20
2
August 20, 2002
HT82M39A
Functional Description
PS/2 mouse
* PS/2 status byte
The x/y data report is 9-bit 2s complement The z data report is 8-bit 2s complement 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
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)
* Standard PS/2 data format
PS/2 mode Sending the commands in the following sequence will set the mouse to 3D PS/2 mode. Command F3h C8h F3h 64h 0 L X0 Y0
Response From Mouse FAh FAh FAh FAh FAh FAh FAh, 03h
Variable rps, 0, 8, 1, bidirectional, synchronous Bit No. 1st word 2nd word 3rd word 7 6 5 4 3 1 X3 Y3 2 M X2 Y2 1 R X1 Y1
F3h 50h F2h
YV XV YS XS X7 Y7 X6 Y6 X5 Y5 X4 Y4
Any time the PC sends a reset FFh 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.
* Data format for 3D PS/2
Variable rps, 0, 8, 1, bidirectional, synchronous Bit No. 1st word 2nd word 3rd word 4th word 7 YV X7 Y7 Z7 6 XV X6 Y6 Z6 5 YS X5 Y5 Z5 4 XS X4 Y4 Z4 3 1 X3 Y3 Z3 2 Ro X2 Y2 Z2 1 R X1 Y1 Z1 0 L X0 Y0 Z0
Rev. 1.20
3
August 20, 2002
HT82M39A
Timing Diagrams
X, Y axis photo-coupler crossed width
X 1 (Y 1 ) (Z 1 ) X 2 (Y 2 ) (Z 2 ) tr tp tf
N o te : . o r X , Y - a x is tr, tp , tf > 3 0 m s . o r Z - a x is tr, tp , tf > 1 m s
X/Y/Z axis counting
X1 X2 +1 Z1 Z2 +1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1
Rev. 1.20
4
August 20, 2002
HT82M39A
PS/2 mouse
* Data output
(1 ) CLK
(3 )
1st CLK
(3 )
2nd CLK
(3 )
(3 )
1 0 th CLK
(4 )
1 1 th CLK
T6
T3 (2 ) DATA T1 S ta r t B it T2
T4 B it 0 P a r ity B it
T5
(5 )
(7 )
S to p B it (6 )
T im in g P a r a m e te r
M in ./M a x . 5 /2 5 m s e c 5 /T 4 -5 m s e c 3 0 /5 0 m s e c 3 0 /5 0 m s e c >0 msec <50 msec
T1 T2 T3 T4 T5
T6
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 R is in g e d g e o f C L K to D A T A tr a n s itio n In a c tiv e C L K D u r a tio n 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 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
* Data input
(1 ) CLK (2 ) I/O In h ib it (4 ) 1 s t CLK 2nd CLK 9 th CLK 1 0 th CLK 1 1 th CLK (8 ) (6 ) P a r ity B it (5 ) S to p B it (7 )
T7 T9 DATA S ta r t B it (3 )
T8 B it 0 (5 )
T im in g P a r a m e te r T7 T8 T9 C L K D u r a tio n , lo w C L K D u r a tio n , h ig h 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
M in ./M a x . 3 0 /5 0 m s e c 3 0 /5 0 m s e c 5 /2 5 m s e c
Rev. 1.20
5
August 20, 2002
HT82M39A
Application Circuits
HT82M39A Z axis optomechanical (this application circuit is for reference only)
V 0 .1 m . IR 120kW IR R 1 2 3 4 5 6 CLK DATA 8 7 16 15 14 13 12 11 10 9 IR
DD
Z1 Z2 VDD NC VSS OSCI CLK DATA
Y2 Y1 X2 X1 TEST LB Ro RB
S1 S2 S3
R
H T82M 39A
HT82M39A Z axis mechanical (this application circuit is for reference only)
V 0 .1 m . 120kW IR Z - a x is M e c h n ic a l E encoder 1 2 3 4 5 6 CLK DATA 8 7 Z1 Z2 VDD NC VSS OSCI CLK DATA Y2 Y1 X2 X1 TEST LB Ro RB 9 16 15 14 13 12 11 10 IR
DD
S1 S2 S3
R
H T82M 39A
Note: R depends on IR characteristics, R=1K for reference only
Rev. 1.20
6
August 20, 2002
HT82M39A
Package Information
16-pin DIP (300mil) outline dimensions
A 16 B 1 9 8
H C D E . G
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 745 240 125 125 16 50 3/4 295 335 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 775 260 135 145 20 70 3/4 315 375 15
Rev. 1.20
7
August 20, 2002
HT82M39A
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (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 (Shanghai) Inc. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor (Hong Kong) Ltd. Block A, 3/F, Tin On Industrial Building, 777-779 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Holmate Semiconductor, Inc. 46712 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright O 2002 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. Holteks 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. 1.20
8
August 20, 2002

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