NXP Semiconductors
PCA9632
4-bit Fm+ I 2 C-bus low power LED driver
9. Bus transactions
slave address (1)
control register
data for register D3, D2, D1, D0 (2)
S
1
1
0
0
0 A1 A0 0
A
X
X
X
0 D3 D2 D1 D0 A
A
P
START condition
R/W
Auto-Increment options
Auto-Increment flag
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
STOP
condition
002aad043
(1) 10-pin version only.
(2) See Table 5 for register definition.
Fig 15. Write to a specific register
slave address (1)
control register
MODE1 register
MODE2 register
S
1
1
0
0
0 A1 A0 0
A
1
0
0
0
0
0
0
0
A
A
A
(cont.)
START condition
R/W
acknowledge
Auto-Increment
on all registers
MODE1
register
selection
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
from slave
SUBADR3 register
Auto-Increment on
ALLCALLADR register
(cont.)
A
acknowledge
from slave
A
acknowledge
from slave
P
STOP
condition
(1) 10-pin version only.
Fig 16. Write to all registers using the Auto-Increment feature
002aad044
PCA9632
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 27 July 2011
? NXP B.V. 2011. All rights reserved.
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