ADNS-2610 Avago Technologies US Inc., ADNS-2610 Datasheet - Page 12

• Manufacturer Part Number: ADNS-2610
• Description: SENSOR OPTICAL MOUSE 8-DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2610

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 516-1843; ADNS-2610

Synchronous Serial Port
The synchronous serial port is used to set and read param-
eters in the ADNS-2610, and also to read out the motion
information.
The port is a two wire, half duplex port. The host micro-
controller always initiates communication; the ADNS-2610
never initiates data transfers.
SCK:
the master (the microcontroller).
SDIO:
Cycle #
Figure 19. Write operation.
SDIO
Figure 20. SDIO setup and hold times SCK pulse width.
12
SCK
SDIO
SCK
SCK
250 ns
The serial port clock. It is always generated by
The data line.
t
setu p
1
250 ns
1
= 60 ns, min
A
2
250 ns, min
6
3
A
5
4
A
4
A
5
3
6
A
2
7
A
1
SDIO Driven by Microcontroller
A
8
0
Write Operation
Write operations, where data is going from the micro-
controller to the ADNS-2610, is always initiated by the
microcontroller and consists of two bytes. The first byte
contains the address (seven bits) and has a “1” as its MSB to
indicate data direction. The second byte contains the data.
The transfer is synchronized by SCK. The microcontroller
changes SDIO on falling edges of SCK. The ADNS-2610
reads SDIO on rising edges of SCK.
9
D
7
10
D
6
11
D
5
12
D
4
13
D
3
14
D
2
15
D
1
16
D
0
DON'T
CARE