ADNS-2610 View Datasheet(PDF) - Agilent Technologies, Inc
Part Name
Description
MFG CO.
'ADNS-2610' PDF : 27 Pages View PDF
Synchronous Serial Port
The synchronous serial port is
used to set and read parameters
in the ADNS-2610, and also to
read out the motion information.
The port is a two wire, half
duplex port. The host
microcontroller always initiates
communication; the ADNS-2610
never initiates data transfers.
SCK: The serial port clock. It is
always generated by the master
(the microcontroller).
SDIO: The data line.
Write Operation
Write operations, where data is
going from the microcontroller to
the ADNS-2610, is always initi-
ated 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.
SCK
Cycle #
SCK
SDIO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
DON'T
CARE
Figure 19. Write operation.
SDIO Driven by Microcontroller
250 ns 250 ns
SCK
SDIO
250 ns, min
tsetup = 60 ns, min
Figure 20. SDIO setup and hold times SCK pulse width.
12
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