PCA9622 datasheet(21/40 Pages) PHILIPS

21 / 40 page

PCA9622

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 2 June 2014

21 of 40

NXP Semiconductors

PCA9622

16-bit Fm+ I2C-bus 100 mA 40 V LED driver

Fig 14. Read all registers using the Auto-Increment feature

A5 A4 A3 A2 A1 A0 0

S A6

slave address

START condition

R/W

acknowledge

from slave

002aac151

control register

Auto-Increment on

Auto-Increment

on all registers

acknowledge

from slave

(cont.)

MODE1

selection

data from MODE1 register

acknowledge

from master

ReSTART

condition

A5 A4 A3 A2 A1 A0 1

slave address

R/W

acknowledge

from slave

data from MODE2 register

acknowledge

from master

data from PWM0

acknowledge

from master

data from

ALLCALLADR register

acknowledge

from master

data from

MODE1 register

acknowledge

from master

(cont.)

data from last read byte

not acknowledge

from master

STOP

condition

(1) In this example, several PCA9622s are used and the same sequence (A) (above) is sent to each of them.

(2) ALLCALL bit in MODE1 register is equal to 1 for this example.

(3) OCH bit in MODE2 register is equal to 1 for this example.

Fig 15. LED All Call I2C-bus address programming and LED All Call sequence example

A5 A4 A3 A2 A1 A0

S A6

slave address(1)

START condition

R/W

acknowledge

from slave

002aac152

control register

Auto-Increment on

acknowledge

from slave

ALLCALLADR

new LED All Call I2C address(2)

STOP

condition

acknowledge

from slave

LED All Call I2C address

START condition

R/W

acknowledge

from the

4 devices

control register

acknowledge

from the

4 devices

LEDOUT

LEDOUT register (LED fully ON)

STOP

condition

acknowledge

from the

4 devices

the 16 LEDs are on at the acknowledge(3)

sequence (A)

sequence (B)

PCA9622 Datasheet(PDF) 21 Page - NXP Semiconductors

PCA9622 Datasheet(HTML) 21 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Datasheet Download

Link URL