PAS106BCA-323 Datasheet, PDF (8/14 Pages) Pixart Imaging Inc. – PAS106BCA-323 SINGLE-CHIP CMOS CIF COLOR DIGITAL IMAGE SENSOR PAS106BBA-323 SINGLE-CHIP CMOS CIF B&W DIGITAL IMAGE SENSOR

PixArt Imaging Inc.
PAS106BCA-323/PAS106BBA-323
CMOS Image Sensor IC
The data and A cycles is repeat until last byte write. Every control registers value inside
PAS106BCA-323/PAS106BBA-323 can be programming via this way. (Please refer to Fig 5.3.)
5.2.2 Slave transmits data to master (read cycle)
§ The sub-address was taken from previous write cycle
§ The sub-address is automatically increment after each byte read
§ Am : Acknowledge by master
§ Note there is no acknowledgment from master after last byte read
1ST BYTE
S
SLAVE ADDRESS
(7 BITS)
RW
A
2ND BYTE
DATA (8 BIT)
n BYTE
Am DATA Am DATA 1 P
NO ACK IN LAST
BYTE
During read cycle, the master generates start condition and then place the 1^st byte data that are combined
slave address (7 bits) with a read/write control bit to SDA line. After issue acknowledgment, 8 bits DATA was
also placed on SDA line by PAS106BCA-323/PAS106BBA-323. The 8 bit data was read from
PAS106BCA-323/PAS106BBA-323 internal control register that address was assigned by previous write cycle.
Follow the master acknowledgment, the PAS106BCA-323/PAS106BBA-323 place the next 8 bits data (address
is increment automatically) on SDA line and then transmit to master serially. The DATA and Am cycles is repeat
until the last byte read. After last byte read, Am is no longer generated by master but instead by keep SDA line
high. The slave (PAS106BCA-323/PAS106BBA-323) must releases SDA line to master to generate STOP
condition. (Please refer to Fig 5.3.)
Fig 5.3 Data Transfer Format
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PixArt Imaging Inc.
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V2.0, May 2002