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PAN3201DH Datasheet(PDF) 18 Page - Pixart Imaging Inc.

Part No. PAN3201DH
Description  LOW POWER CMOS OPTICAL MOUSE SENSOR
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Maker  PIXART [Pixart Imaging Inc.]
Homepage  http://www.pixart.com.tw
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PAN3201DH Datasheet(HTML) 18 Page - Pixart Imaging Inc.

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PixArt Imaging Inc.
PAN3201DH
CMOS Optical Mouse Sensor
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission
.
18
PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
V1.0, Mar. 2006
6.5.2 Register Power Down Mode
PAN3201DH can be placed in a power-down mode by setting bit 3 in the configuration register via a serial port
write operation. After setting the configuration register, wait at least 1frame times. To get the chip out of the
power-down mode, clear bit 3 in the configuration register via a serial port write operation. In power-down
mode, the serial interface watchdog timer is not available. But, The serial interface still can read/write normally.
For an accurate report after leave power down mode, wait about 3ms before the micro-controller is able to issue
any write/read operation to the PAN3201DH.
Figure16. Power-down configuration register writing operation
6.6 Error Detection
1.The micro-controller can verify success of write operations by issuing a read command to the same address
and comparing written data to read data.
2. The micro-controller can verify the synchronization of the serial port by periodically reading the product ID
register
7. SWKINT Timing
When the PAN3201DH is in sleep mode and the micro-controller is also in sleep mode, if the PAN3201DH
finds motion occurred at this moment, PAN3201DH will wake micro-controller up promptly via SWKINT.
Figure13. SWKINT Timing


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