pca9698 NXP Semiconductors, pca9698 Datasheet - Page 26

• Manufacturer Part Number: pca9698
• Description: 40-bit Fm+ I2c-bus Advanced I/o Port With Reset, Oe And Int
• Manufacturer: NXP Semiconductors

Fig 15. Write to the 5 output ports
OE is LOW (with OEPOL = 0) or HIGH (with OEPOL = 1) to observe a change in the outputs.
If more than 5 bytes are written, previous data are overwritten.
SDA
write to port when OCH = 0
data out from port when OCH = 0
write to port when OCH = 1
data out from port when OCH = 1
S
START condition
A6 A5 A4 A3 A2 A1 A0 0 A
slave address
acknowledge
from slave
R/W
AI = 1
1 0 0 0 1 0 0 0
command register
register bank 0
Output Port
is selected
A
acknowledge
from slave
DATA BANK 0 A
t
v(Q)
acknowledge
from slave
DATA BANK 1
data valid
bank 0
A
acknowledge
from slave
DATA BANK 2 A
data valid
bank 1
acknowledge
from slave
DATA BANK 3 A
data valid
bank 2
acknowledge
from slave
DATA BANK 4
acknowledge
from slave
data valid
bank 3
A
STOP
condition
P
data valid
all banks
data valid
t
bank 4
v(Q)
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