pca9635 NXP Semiconductors, pca9635 Datasheet - Page 9

• Manufacturer Part Number: pca9635
• Description: Pca9635 16-bit Fm I2c-bus Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 4.
PCA9635_5
Product data sheet
Register number (hex) D4
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
Register summary
7.3 Register definitions
AI[2:0] = 110 is used when the LED drivers must be globally programmed with different
settings during the same I
blinking change.
AI[2:0] = 111 is used when individual and global changes must be performed during the
same I
same time.
Only the 5 least significant bits D[4:0] are affected by the AI[2:0] bits.
When the Control register is written, the register entry point determined by D[4:0] is the
first register that will be addressed (read or write operation), and can be anywhere
between 0 0000 and 1 1011 (as defined in
flag is set and the rollover value at which the register increment stops and goes to the next
one is determined by AI[2:0]. See
register = 1111 0100 (F4h), then the register addressing sequence will be (in hex):
14
as the master keeps sending or reading data.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
…
[1][2]
2
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
C-bus communication, for example, changing a color and global brightness at the
1B
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
00
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Rev. 05 — 22 March 2007
…
2
C-bus communication, for example, global brightness or
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
13
Name
MODE1
MODE2
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
PWM8
PWM9
PWM10
PWM11
PWM12
PWM13
PWM14
PWM15
GRPPWM
GRPFREQ
LEDOUT0
LEDOUT1
LEDOUT2
LEDOUT3
Table 3
02
…
for rollover values. For example, if the Control
Table
13
4). When AI[2] = 1, the Auto-Increment
Type
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
02
16-bit Fm+ I
…
Function
Mode register 1
Mode register 2
brightness control LED0
brightness control LED1
brightness control LED2
brightness control LED3
brightness control LED4
brightness control LED5
brightness control LED6
brightness control LED7
brightness control LED8
brightness control LED9
brightness control LED10
brightness control LED11
brightness control LED12
brightness control LED13
brightness control LED14
brightness control LED15
group duty cycle control
group frequency
LED output state 0
LED output state 1
LED output state 2
LED output state 3
13
PCA9635
2
© NXP B.V. 2007. All rights reserved.
C-bus LED driver
02
… as long
9 of 34