pca9534bs3 NXP Semiconductors, pca9534bs3 Datasheet - Page 9

• Manufacturer Part Number: pca9534bs3
• Description: 8-bit I2c And Smbus, Low Power I/o Port With Interrupt
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9534_3
Product data sheet
Fig 11. Read Input Port register
data into
This figure assumes the command byte has previously been programmed with 00h.
Transfer of data can be stopped at any moment by a STOP condition.
read from
port
INT
SDA
SCL
port
S
START condition
1
t
0
v(INT_N)
2
1
slave address
3
0
4
0 A2 A1 A0 1
5
6
acknowledge
from slave
7
R/W
t
h(D)
8
9
A
Rev. 03 — 6 November 2006
DATA 2
t
rst(INT_N)
8-bit I
data from port
DATA 1
DATA 3
2
C-bus and SMBus low power I/O port with interrupt
acknowledge
from master
t
su(D)
A
DATA 4
data from port
DATA 4
no acknowledge
from master
PCA9534
© NXP B.V. 2006. All rights reserved.
NA
002aac475
P
STOP
condition
9 of 25