HT82M398A Просмотр технического описания (PDF) - Holtek Semiconductor
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HT82M398A Datasheet PDF : 7 Pages
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Functional Description
PS/2 mouse
· PS/2 status byte
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
Variable rps, 0, 8, 1, bidirectional, synchronous
Bit No. 7 6 5 4 3 2 1 0
1st word YV XV YS XS 1 M R L
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 3 2 1 0
1st word 0 0 YS XS 1 M R L
2nd word X7 X6 X5 X4 X3 X2 X1 X0
3rd word Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
4th word Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0
HT82M398A
The x/y data report is 9-bit 2¢s complement
The z data report is 8-bit 2¢s complement
· Data format for 5-button Wheel Mouse
Bit No. 7 6 5 4 3 2 1 0
1st word 0 0 YS XS 1 M R L
2nd word X7 X6 X5 X4 X3 X2 X1 X0
3rd word Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
4th word 0 0 B5 B4 Z3 Z2 Z1 Z0
X movement towards the right is positive, moving to-
wards the left is negative
Y upward movement is positive, moving down is nega-
tive
Z rolling towards the user is positive, else negative
Button status: 1=pressed, 0=released
· 5-button Wheel Mouse Mode follows the 5-button Ac-
tivation Method of Windows 2000 and the 5-button
Wheel Mouse Specification.
¨ 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.
Timing Diagrams
X, Y Axis Photo-coupler Cross Width
X 1 (Y 1 ) (Z 1 )
X 2 (Y 2 ) (Z 2 )
tr
tp
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
Rev. 1.40
3
October 12, 2006
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