HT82M23B 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT82M23B Datasheet PDF : 14 Pages
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HT82M23A/HT82M23B/HT82M23C
Functional Description
PS/2 Mouse
· PS/2 status byte
¨ Byte 1
Bit 7: Reserved
Bit 6: 0=Stream Mode, 1=Remote Mode
Bit 5: 0=Disabled, 1=Enabled
Bit 4: 0=Scaling 1:1, 1=Scaling 2:1
Bit 3: 1=Wrap Mode, 0=Stream or Remote
(different from IBM specs.)
Bit 2: 1=Left Button Pressed
Bit 1: 1=Middle Button Pressed
Bit 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 (HT82M23A/HT82M23B)
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 (HT82M23A/HT82M23B)
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
4th word Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0
Note: 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 (HT82M23A)
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 RB1 RB0 Z3 Z2 Z1 Z0
Note:
X- movement towards the right is positive, mov-
ing 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
· For HT82M23A/HT82M23B, 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
F3h
C8h
F3h
64h
F3h
50h
F2h
Response From Mouse
FAh
FAh
FAh
FAh
FAh
FAh
FAh, 03h
· For HT82M23A, mouse mode changes between
Standard and Windows 2000 PS/2 mode.
Sending the commands in the following sequence will
set the mouse to Windows 2000 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.
· USB mouse data format for 3D mod
(HT82M23A/HT82M23B/HT82M23C)
Bit No. 7 6 5 4 3 2 1 0
1st word 0 0 0 0 0 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
· Data format for Windows 2000 mode (HT82M23A)
Bit No. 7 6 5 4 3 2 1 0
1st word 0 0 0 RB1 RB1 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
Note:
X- movement towards the right is positive, mov-
ing towards the left is negative
Y- upward movement is negative, moving down
is positive
Z- rolling towards the user is negative, else positive
Button status: 1=pressed, 0=released
Rev. 1.00
5
January 12, 2006
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