pca9564 NXP Semiconductors, pca9564 Datasheet - Page 17

• Manufacturer Part Number: pca9564
• Description: Parallel Bus To I2c-bus Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
I
The diagrams (Figures 9 to 12) illustrate typical timing diagrams for the PCA9564 in master/slave functions.
2006 Sep 01
2
C-BUS TIMING DIAGRAMS
SCL
SDA
INT
Parallel bus to I
SCL
SDA
INT
Master PCA9564 writes data to slave transmitter.
Master PCA9564 reads data from slave transmitter.
condition
condition
START
START
from slave receiver
from slave
7-bit address
7-bit address
2
R/W = 0
R/W = 1
C-bus controller
ACK
ACK
Figure 9. Bus timing diagram; master transmitter mode
interrupt
interrupt
Figure 10. Bus timing diagram; master receiver mode
first-byte
first-byte
17
ACK
ACK
interrupt
interrupt
from master
receiver
nbyte
nbyte
no ACK
ACK
interrupt
condition
STOP
PCA9564
Product data sheet
su01491
condition
STOP
su01490