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PAN101B Datasheet(PDF) 5 Page - Pixart Imaging Inc. |
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PAN101B Datasheet(HTML) 5 Page - Pixart Imaging Inc. |
5 / 24 page PixArt Imaging Inc. PAN101B CMOS Optical Navigation Sensor All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission . 5 PixArt Imaging Inc. E-mail: fae_service@pixart.com.tw V1.4, FEB. 2003 0x02 Motion_Status Bit 7 6 5 4 3 2 1 0 Field Motion Reserved Reserved DYOVF DXOVF Reserved Reserved RES Usage 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. 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 Reserved for future Reserved Reserved for future DYOVF Motion Delta Y overflow, ∆Y buffer has overflowed since last report 0 = no overflow (Default) 1 = Overflow has occurred DXOVF Motion Delta X overflow, ∆X buffer has overflowed since last report 0 = no overflow (Default) 1 = Overflow has occurred Reserved Reserved for future Reserved Reserved for future Notes RES Resolution in counts per inch 0 = 800 (Default @ PAN101BXX-208) 1 = 400 (Default @ PAN101BXX-204) 0x03 Delta_X Bit 7 6 5 4 3 2 1 0 Field X7 X6 X5 X4 X3 X2 X1 X0 Usage X movement is counts since last report. Absolute value is determined by resolution. Reading clears the register. Report range –128~+127. 0x04 Delta_Y Bit 7 6 5 4 3 2 1 0 Field Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 Usage 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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