pan3401 ETC-unknow, pan3401 Datasheet - Page 9

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

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PixArt Imaging Inc.
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PixArt Imaging Inc.
PAN3401
6. Data Format
The PAN3401 supports two different PS/2-compatible packet formats, depending upon the following operational
modes:
•
•
6.1 Standard 2D Mode Format
A standard 2D PS/2-compatible mouse motion report consists of a 3-byte packet defined as below.
6.2 Standard 3D Mode Format
A standard 3D PS/2-compatible mouse motion report consists of a 4-byte packet defined as below.
Standard 2D mode (2D3B)
Standard 3D mode (3D3B)
Byte
Byte
1
2
3
4
1
2
3
[e-mail]
Bit
0-7
0-7
0-7
0-7
0-7
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
X0 ~ X7
Y0 ~ Y7
X0 ~ X7
Y0 ~ Y7
Symbol Description
Z0 ~ Z7
Symbol Description
X
Y
X
Y
BM
BM
BR
BL
BR
BL
Xs
Ys
Xs
Ys
1
1
OV
OV
OV
OV
1 = Left button pressed
1 = Right button pressed
Always = 0, reserved for middle button
Always = 1, reserved for future use
X data sign, 1 = negative
Y data sign, 1 = negative
X data overflow, 1 = overflow
Y data overflow, 1 = overflow
X data (D0 - D7). A positive value indicates motion to the right; a
negative value indicates motion to the left. Bit 0=LSB.
Y data (D0 - D7), A positive value indicates device motion upward; a
negative value indicates motion downward. Bit 0 = LSB.
1= Left button pressed
1 = Right button pressed
1= Middle button pressed
Always = 1, reserved for future use
X data sign, 1 = negative
Y data sign, 1 = negative
X data overflow, 1 = overflow
Y data overflow, 1 = overflow
X data (D0 - D7). A positive value indicates motion to the right; A
negative value indicates motion to the left. Bit 0 = LSB.
Y data (D0 - D7). A positive value indicates device motion upward; A
negative value indicates motion downward. Bit 0 = LSB.
Z-wheel motion data (D0 - D7). A positive value indicates device
motion downward; a negative value indicates motion upward. The Z0-
Z7 limit value is ±7. Bit 0 = LSB.
PS/2 Optical Mouse Single Chip
.
V1.3, Mar. 2008
9