pca9635 NXP Semiconductors, pca9635 Datasheet - Page 10

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

NXP Semiconductors
Table 4.
[1]
[2]
Table 5.
Legend: * default value.
[1]
[2]
Table 6.
Legend: * default value.
PCA9635_5
Product data sheet
Register number (hex) D4
18
19
1A
1B
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
Only D[4:0] = 0 0000 to 1 1011 are allowed and will be acknowledged. D[4:0] = 1 1100 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.
It takes 500 s max. for the oscillator to be up and running once SLEEP bit has been set to logic 1. Timings on LEDn outputs are not
guaranteed if PWMx, GRPPWM or GRPFREQ registers are accessed within the 500 s window.
No blinking or dimming is possible when the oscillator is off.
Symbol
-
-
DMBLNK
Symbol
AI2
AI1
AI0
SLEEP
SUB1
SUB2
SUB3
ALLCALL
Register summary
MODE1 - Mode register 1 (address 00h) bit description
MODE2 - Mode register 2 (address 01h) bit description
7.3.1 Mode register 1, MODE1
7.3.2 Mode register 2, MODE2
Access
read only
read only
read only
R/W
R/W
R/W
R/W
R/W
Access
read only
read only
R/W
1
1
1
1
[1][2]
D3
1
1
1
1
…continued
Value
0*
0*
0*
1
D2
0
0
0
0
Value
0
1*
0*
1
0*
1
0
1*
0*
1
0*
1
0*
1
0
1*
Description
reserved
reserved
group control = dimming.
group control = blinking.
D1
0
0
1
1
Rev. 05 — 22 March 2007
Description
Register Auto-Increment disabled.
Register Auto-Increment enabled.
Auto-Increment bit 1 = 0.
Auto-Increment bit 1 = 1.
Auto-Increment bit 0 = 0.
Auto-Increment bit 0 = 1.
Normal mode
Low power mode. Oscillator off
PCA9635 does not respond to I
PCA9635 responds to I
PCA9635 does not respond to I
PCA9635 responds to I
PCA9635 does not respond to I
PCA9635 responds to I
PCA9635 does not respond to LED All Call I
PCA9635 responds to LED All Call I
D0
0
1
0
1
Name
SUBADR1
SUBADR2
SUBADR3
ALLCALLADR
[1]
.
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
Type
read/write
read/write
read/write
read/write
[2]
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
.
2
16-bit Fm+ I
C-bus address.
Function
I
I
I
LED All Call I
2
2
2
C-bus subaddress 1
C-bus subaddress 2
C-bus subaddress 3
2
C-bus address.
PCA9635
2
© NXP B.V. 2007. All rights reserved.
C-bus LED driver
2
C-bus address
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