PAN301BSI-208 Datasheet, PDF (19/27 Pages) Pixart Imaging Inc. – CMOS HIGH PERFORMANCE OPTICAL MOUSE SENSOR

PixArt Imaging Inc.
PAN301BSI-208
CMOS Optical Mouse Sensor
6.5.2 Register Power Down Mode
PAN301BSI-208 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 PAN301BSI-208.
SCLK
SDIO
IDD
1234567891111111
0123456
Address=0x06
Data=0x08
1 00 0 0 1 10 0 0 0 0 1 00 0
DATA
1 frame, max
t_PDR
Figure 17. 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.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
19
PixArt Imaging Inc.
E-mail: [e-mail]
V1.1, MAY. 2004