ADNS-3050 Avago Technologies US Inc., ADNS-3050 Datasheet - Page 12

• Manufacturer Part Number: ADNS-3050
• Description: Optical Sensors - Board Mount Optical Nav Sensor
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-3050

• Lead Free Status / Rohs Status: Details

Required Timing between Read and Write Commands
There are minimum timing requirements between read and write commands on the serial port.
Timing between Two Write Commands
If the rising edge of the SCLK for the last data bit of the second write command occurs before the required delay (t
then the fi rst write command may not complete correctly.
Figure 17. Timing between Write and Read Commands
Timing between Write and Read Commands
If the rising edge of SCLK for the last address bit of the read command occurs before the required delay (t
command may not complete correctly.
Figure 18. Timing between Read and Subsequent Write or Read Commands
Timing between Read and Subsequent Write or Read Commands
During a read operation SCLK should be delayed at least t
3050 has time to prepare the requested data. The falling edge of SCLK for the fi rst address bit of either the read or write
command must be at least t
12
Figure 16. Timing between Two Write Commands
SCLK
SCLK
SCLK
ADDRESS
ADDRESS
ADDRESS
WRITE OPERATION
WRITE OPERATION
SRR
DATA
or t
DATA
SRW
after the last SCLK rising edge of the last data bit of the previous read operation.
READ OPERATION
t
SRAD
SRAD
t
ADDRESS
SWR
after the last address data bit to ensure that the ADNS-
t
SWW
WRITE OPERATION
NEXT READ OPERATION
DATA
ADDRESS
DATA
t
SRW
or WRITE OPERATION
& t
SRR
NEXT READ
ADDRESS
SWR
), the write
SWW
),