PCA9632DP1 NXP [NXP Semiconductors], PCA9632DP1 Datasheet - Page 23

• Manufacturer Part Number: PCA9632DP1
• Description: 4-bit Fm+ I2C-bus low power LED driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9632_3
Product data sheet
Fig 19. LED All Call I
Fig 20. Software Reset (SWRST) Call sequence
(1) 10-pin version is used for this figure. Four PCA9632DP2 or PCA9632TK2 and same sequence (A) (above) is sent to each of
(2) ALLCALL bit in MODE1 register is equal to logic 1 for this example.
(3) OCH bit in MODE2 register is equal to logic 1 for this example.
sequence (A)
sequence (B)
them. A[1:0] = 00 to 11.
S
START condition
0
SWRST Call I
S
START condition
S
START condition
0
LED All Call I
2
1
1
C-bus address programming and LED All Call sequence example
0
1
0
slave address
0
2
0
1
C address
0
2
0
0
C-bus address
1
acknowledge
from slave(s)
0 A1 A0 0
1
1
(1)
R/W
0
acknowledge
acknowledge
0
from slave
1
4 devices
A
from the
R/W
R/W
0
1
A
A
Rev. 03 — 15 July 2008
0
X
X
Auto-Increment on
1
SWRST data
Byte 1 = A5h
X
X
0
control register
control register
X
X
0
0
0
1
register selection
register selection
ALLCALLADR
1
1
0
LEDOUT
1
0
1
Registers are set to default power-up values.
0
0
A
acknowledge
from slave(s)
0
0
4-bit Fm+ I
0
the 16 LEDs are on at the acknowledge
A
A
acknowledge
from slave
acknowledge
from the
4 devices
new LED All Call I
1
LEDOUT register (LED fully ON)
1
0
0
SWRST data
Byte 2 = 5Ah
0
1
1
1
0
PCA9632 is(are) reset.
2
1
C-bus low power LED driver
0
1
0
acknowledge
from slave(s)
2
C-bus address
1
0
1
0
1
acknowledge
acknowledge
0
002aad048
from slave
1
0
PCA9632
4 devices
A
from the
© NXP B.V. 2008. All rights reserved.
X
1
condition
condition
002aad047
P
(2)
STOP
STOP
A
A
(3)
P
P
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