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PCA9552

16-bit I2C-bus LED driver with programmable blink rates

NXP Semiconductors. 

Philips Semiconductors

PCA9552

16-bit I2C-bus LED driver with programmable blink rates

6.3.7 LS0 to LS3 - LED selector registers

The LSn LED select registers determine the source of the LED data.

00 = output is set LOW (LED on)

01 = output is set high-impedance (LED off; default)

10 = output blinks at PWM0 rate

11 = output blinks at PWM1 rate

Table 10: LS0 to LS3 - LED selector registers bit description

Legend: * default value

Register Bit

Value

Description

LS0 - LED0 to LED3 selector

LS0

7:6

01*

LED3 selected

5:4

01*

LED2 selected

3:2

01*

LED1 selected

1:0

01*

LED0 selected

LS1 - LED4 to LED7 selector

LS1

7:6

01*

LED7 selected

5:4

01*

LED6 selected

3:2

01*

LED5 selected

1:0

01*

LED4 selected

LS2 - LED8 to LED11 selector

LS2

7:6

01*

LED11 selected

5:4

01*

LED10 selected

3:2

01*

LED9 selected

1:0

01*

LED8 selected

LS3 - LED12 to LED15 selector

LS3

7:6

01*

LED15 selected

5:4

01*

LED14 selected

3:2

01*

LED13 selected

1:0

01*

LED12 selected

PCA9552_5

Product data sheet

Rev. 05 — 9 March 2006

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.

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