pca9624 NXP Semiconductors, pca9624 Datasheet - Page 9

• Manufacturer Part Number: pca9624
• Description: 8-bit Fm+ I2c-bus 100 Ma 40 V Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 4.
[1]
[2]
PCA9624_1
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
Only D[4:0] = 0 0000 to 1 0001 are allowed and will be acknowledged. D[4:0] = 1 0010 to 1 1111 are reserved and will not be
acknowledged.
When writing to the Control register, bit 4 must be programmed with logic 0 for proper device operation.
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 0001 (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 = 1110 0100 (E4h), then the register addressing sequence will be (in hex):
04
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][2]
2
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
C-bus communication, for example, changing a color and global brightness at the
0B
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
02
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
Rev. 01 — 3 June 2009
…
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
0B
Name
MODE1
MODE2
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
GRPPWM
GRPFREQ
LEDOUT0
LEDOUT1
SUBADR1
SUBADR2
SUBADR3
ALLCALLADR
Table 3
02
for rollover values. For example, if the Control
…
Table
8-bit Fm+ I
0B
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
02
2
C-bus 100 mA 40 V LED driver
…
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
group duty cycle control
group frequency
LED output state 0
LED output state 1
I
I
I
LED All Call I
2
2
2
C-bus subaddress 1
C-bus subaddress 2
C-bus subaddress 3
0B
PCA9624
© NXP B.V. 2009. All rights reserved.
02
2
C-bus address
… as long
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