pca9632 NXP Semiconductors, pca9632 Datasheet - Page 18

• Manufacturer Part Number: pca9632
• Description: Pca9632 4-bit Fm I?c-bus Low Power Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
9. Bus transactions
PCA9632_1
Objective data sheet
Fig 13. Write to a specific register
Fig 14. Write to all registers using the Auto-Increment feature
(cont.)
S
START condition
(1) See
1
1
slave address
SUBADR3 register
0
Table 4
0
S
START condition
0
1
for register definition.
1
1
acknowledge
acknowledge
slave address
from slave
from slave
0
0
Fig 12. Acknowledgement on the I
R/W
0
0
A
A
0
1
Auto-Increment on
1
Auto-Increment
on all registers
SCL from master
ALLCALLADR register
0
0
by transmitter
R/W
control register
data output
by receiver
0
data output
0
0
A
acknowledge
from slave
Rev. 01 — 28 September 2007
0
X
Auto-Increment flag
acknowledge
0
MODE1
register
selection
X
from slave
condition
START
Auto-Increment options
control register
0
X
S
condition
0
0 D3 D2 D1 D0
STOP
A
A
acknowledge
from slave
P
2
C-bus
1
MODE1 register
A
acknowledge
from slave
data for register D3, D2, D1, D0
4-bit Fm+ I
2
acknowledge
from slave
acknowledgement
not acknowledge
A
2
clock pulse for
acknowledge
C-bus low power LED driver
8
acknowledge
MODE2 register
from slave
condition
002aad043
(1)
PCA9632
STOP
A
© NXP B.V. 2007. All rights reserved.
002aaa987
9
acknowledge
P
from slave
A
002aad044
18 of 32
(cont.)