PAW3603DH-NF Datasheet, PDF (5/32 Pages) Pixart Imaging Inc. – LOW POWER WIRELESS LASER MOUSE SENSOR

PixArt Imaging Inc.
PAW3603DH-NF
CMOS Laser Mouse Sensor
0x02
Bit
Field
Usage
Motion_Status
7
6
5
4
3
2
1
0
Motion
Reserved[1:0]
DYOVF DXOVF
RES[2:0]
Register 0x02 allows the user to determine if motion has occurred since the last time it was read. If
so, then the user should read registers 0x03 and 0x04 to get the accumulated motion. It also tells if
the motion buffers have overflowed since the last reading. The current resolution is also shown.
Notes
0x03
Bit
Field
Usage
0x04
Bit
Field
Usage
Reading this register freezes the Delta_X and Delta_Y register values. Read this register before
reading the Delta_X and Delta_Y registers. If Delta_X and Delta_Y are not read before the motion
register is read a second time, the data in Delta_X and Delta_Y will be lost.
Field Name Description
Motion
Motion since last report or PD
0 = No motion (Default)
1 = Motion occurred, data ready for reading in Delta_X and Delta_Y registers
Reserved[1:0] Reserved for future use
DYOVF
DXOVF
RES[2:0]
Motion Delta Y overflow, ΔY buffer has overflowed since last report
0 = No overflow (Default)
1 = Overflow has occurred
Motion Delta X overflow, ΔX buffer has overflowed since last report
0 = No overflow (Default)
1 = Overflow has occurred
Resolution in counts per inch
000 = 800
001 = 1000
010 = 1200
011 = 1600
100 = 2000
Delta_X
7
6
5
4
3
2
1
0
X7
X6
X5
X4
X3
X2
X1
X0
X movement is counts since last report. Absolute value is determined by resolution. Reading clears
the register. Report range –128 ~ +127.
Delta_Y
7
6
5
4
3
2
1
0
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Y movement is counts since last report. Absolute value is determined by resolution. Reading clears
the register. Report range –128 ~ +127.
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PixArt Imaging Inc.
E-mail: [e-mail]
V1.0, Aug. 2007