pan3401 ETC-unknow, pan3401 Datasheet - Page 10

• Manufacturer Part Number: pan3401
• Description: Ps/2 Optical Mouse Single Chip
• Manufacturer: ETC-unknow

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PixArt Imaging Inc.
PAN3401
7. Mouse Mode Selection
The Set Sampling Rate command is used to set the device operating modes. Whenever the mouse received
command 'FF', it will reset to standard mode (2D3B) mode. After power-on reset is initiated, the mouse is set to
standard PS/2 mode.
The Device ID is available through the PS/2 Read Device Type (0xF2) command. For a device in standard 2D
mode, the device will report an ID of 0x00. For a device in standard 3D mode, the device will report an ID of
0x03.
● Standard 3D Mouse (3D3B) Command Sequence
After Reset, the device will be in standard 2D mode. By sending the Set Sampling Rate command series as
follows, the device is set to standard 3D mode.
Notice that the Set Sampling Rate commands are valid, and the device report rate will be the value of the last
command; that is, 0x50 after this series of commands.
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Standard 2D mode (2D3B)
Standard 3D mode (3D3B)
Command
Mode
C8
F3
F3
F3
F2
64
50
Device ID
Response
FA, 03
0x00
0x03
FA
FA
FA
FA
FA
FA
PS/2 Optical Mouse Single Chip
.
V1.3, Mar. 2008
10