HT82M30A データシートの表示（PDF） - Holtek Semiconductor
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HT82M30A Datasheet PDF : 13 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 MB RO LB
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
2nd word
3rd word
4th word
YV XV YS XS 1 MB RO LB
X7 X6 X5 X4 X3 X2 X1 X0
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0
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 MB RO LB
2nd word X7 X6 X5 X4 X3 X2 X1 X0
3rd word Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
4th word 0 0 RB1 RB0 Z3 Z2 Z1 Z0
HT82M30A
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
· 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.
Command
Response From Mouse
F3h
FAh
C8h
FAh
F3h
FAh
64h
FAh
F3h
FAh
50h
FAh
F2h
FAh, 03h
· Mouse mode changes between Standard and Win2K
PS/2 mode.
Sending the commands in the following sequence will
set the mouse to Win2K PS/2 mode.
Command
Response From Mouse
F3h
FAh
C8h
FAh
F3h
FAh
C8h
FAh
F3h
FAh
50h
FAh
F2h
FAh, 04h
¨ 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.
Rev. 1.10
4
August 4, 2004
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