pca9633 NXP Semiconductors, pca9633 Datasheet - Page 11

• Manufacturer Part Number: pca9633
• Description: Pca9633 4-bit Fm+ I2c-bus Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 7.
[1]
[2]
PCA9633_3
Product data sheet
Register number (hex)
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
Only D[3:0] = 0000 to 1100 are allowed and will be acknowledged. D[3:0] = 1101, 1110, or 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
When the Control register is written, the register entry point determined by D[3:0] is the
first register that will be addressed (read or write operation), and can be anywhere
between 0000 and 1100 (as defined in
is set and the rollover value at which the point where the register increment stops and
goes to the next one is determined by AI[2:0]. See
example, if the Control register = 1110 1000 (E8h), then the register addressing sequence
will be (in hex):
08
as the master keeps sending or reading data.
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
…
[1][2]
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
0C
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
00
Rev. 03 — 20 December 2006
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
…
Name
MODE1
MODE2
PWM0
PWM1
PWM2
PWM3
GRPPWM
GRPFREQ
LEDOUT
SUBADR1
SUBADR2
SUBADR3
ALLCALLADR
07
02
Table
…
7). When AI[2] = 1, the Auto-Increment flag
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
07
Table 6
02
4-bit Fm+ I
for rollover values. For
Function
Mode register 1
Mode register 2
brightness control LED0
brightness control LED1
brightness control LED2
brightness control LED3
group duty cycle control
group frequency
LED output state
I
I
I
LED All Call I
…
2
2
2
C-bus subaddress 1
C-bus subaddress 2
C-bus subaddress 3
07
PCA9633
2
© NXP B.V. 2006. All rights reserved.
C-bus LED driver
02
2
C-bus address
… as long
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