PixArt Imaging Inc.
PAW3402 / PAW3412
PS/2 Optical Mouse SOC
5. PS/2 Command Set
Description
There are 16 valid commands that transmit between the system and the PS/2 Mouse. All other commands will
cause an FE (Resend) response from the PS/2 Mouse. A second invalid command will cause an FC (error)
response from the PS/2 Mouse.
5.1 PS/2 Command Set
Hex Code
FF
FE
F6
F5
F4
F3, XX
F2
F0
EE
EC
EB
EA
E9
E8, XX
E7
E6
Command
Reset
Resend
Set Default
Disable
Enable
Set Sampling Rate
Read Device Type
Set Remote Mode
Set Wrap Mode
Reset Wrap Mode
Read Data
Set Stream Mode
Status Request
Set Resolution
Set Scaling 2:1
Reset Scaling
Response
FA, AA, 00
XX, (XX, XX)
FA
FA
FA
FA, FA
FA, 00
FA
FA
FA
FA, XX, XX, XX
FA
FA, XX, XX, XX
FA, FA
FA
FA
5.2 Set Sampling Rate (F3, XX)
Second Byte Hex Value (XX)
0A
14
28
3C
50
64
C8
Sampling Rate
10/sec
20/sec
40/sec
60/sec
80/sec
100/sec
200/sec
5.3 Status Request (E9)
Byte
1
Bit
0
1
2
3
4
5
6
7
0-7
0-7
Symbol
BR
BM
BL
0
Scaling
Enabled
Remote mode
0
Resolution
Sampling rate
Description
1 = Right button pressed.
1 = Middle button pressed.
1 = Left button pressed.
Always = 0, reserved for future use.
0 = Scaling 1:1; 1 = Scaling 2:1.
0 = Disabled; 1 = Enabled.
0 = Stream mode; 1 = Remote mode.
Always=0, reserved for future use.
Current resolution setting. Bit 0=LSB.
Current sampling rate. Bit 0=LSB.
2
3
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8
V1.0, Feb. 2008
PixArt Imaging Inc.
E-mail:
fae_service@pixart.com.tw
PIXART [ PIXART IMAGING INC. ]
