ADNS-2610 View Datasheet(PDF) - Agilent Technologies, Inc

Part Name

Description

Manufacturer

ADNS-2610

Optical Mouse Sensor

Agilent Technologies, Inc 

Power-down Mode (PD) and Timing

ADNS-2610 can be placed in a

power-down mode by setting bit 6

in the configuration register via a

serial I/O port write operation.

Note that while writing a “1” to

bit 6 of the configuration register,

all other bits must be written

with their original value in order

to keep the current configuration.

After setting the configuration

register, wait at least 32 system

clock cycles. To get the chip out

of the power-down mode, clear bit

6 in the configuration register via

a serial I/O port write operation.

(CAUTION! In power-down mode,

the SPI timeout (t ) will not

SPTT

function. Therefore, no partial

SPI command should be sent.

Otherwise, the sensor may go

into a hang-up state). While the

sensor is in power-down mode,

only the bit 6 data will be written

to the configuration register.

Writing the other configuration

register values will not have any

effect. For an accurate report

after power-up, wait for a total

period of 50 ms before the

microcontroller is able to issue

any write/read operation to the

ADNS-2610. The sensor register

settings, prior to power-down

mode, will remain during power-

down mode.

CLK

SCK

SDIO

1 A6 A5 A4 A3

IDD

Figure 12. Power-down timing.

32 clock cycles min

D5 D4 D3 D2 D1 D0

tPD

The address of the configuration

register is 0000000. Assume that

the original content of the

configuration register is 0x00.

SCK

SDIO

Write

Operation

1

0

Configuration Register Address

0

0

00

0

00

Configuration Register Data

1

00

00

00

Figure 13. Power-down configuration register writing operation.

Setting the power down bit

simply sets the analog circuitry

into a no current state.

Note: LED_CNTL, and SDIO will

be tri-stated during power down

mode.

10

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