
NXP Semiconductors
PCA9635
16-bit Fm+ I 2 C-bus LED driver
7.3.6 LEDOUT0 to LEDOUT3, LED driver output state
Table 10.
LEDOUT0 to LEDOUT3 - LED driver output state register (address 14h to 17h) bit
description
Legend: * default value.
Address
14h
15h
16h
17h
Register
LEDOUT0
LEDOUT1
LEDOUT2
LEDOUT3
Bit
7:6
5:4
3:2
1:0
7:6
5:4
3:2
1:0
7:6
5:4
3:2
1:0
7:6
5:4
3:2
1:0
Symbol
LDR3
LDR2
LDR1
LDR0
LDR7
LDR6
LDR5
LDR4
LDR11
LDR10
LDR9
LDR8
LDR15
LDR14
LDR13
LDR12
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Value
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
00*
Description
LED3 output state control
LED2 output state control
LED1 output state control
LED0 output state control
LED7 output state control
LED6 output state control
LED5 output state control
LED4 output state control
LED11 output state control
LED10 output state control
LED9 output state control
LED8 output state control
LED15 output state control
LED14 output state control
LED13 output state control
LED12 output state control
LDRx = 00 — LED driver x is off (default power-up state).
LDRx = 01 — LED driver x is fully on (individual brightness and group dimming/blinking
not controlled).
LDRx = 10 — LED driver x individual brightness can be controlled through its PWMx
register.
LDRx = 11 — LED driver x individual brightness and group dimming/blinking can be
controlled through its PWMx register and the GRPPWM registers.
PCA9635_7
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 — 16 July 2009
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