tza3017hw NXP Semiconductors, tza3017hw Datasheet - Page 22

• Manufacturer Part Number: tza3017hw
• Description: 30 Mbits/s Up To 3.2 Gbits/s A-rate Fibre Optic Transmitter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
The protocol for reading one or more registers is shown in Fig.17. The receiver sends the address of the slave device,
waits for an acknowledge from the slave, receives data byte(s) from slave (the TZA3017AHW starts sending data after
asserting an acknowledge), after receiving the data, the receiver sends an acknowledge or, if finished, a
not-acknowledge, followed by a stop condition.
I
The I
Address and read/write data are transferred serially via pin SDA and clocked via pin SCL when pin CS (chip select) is
HIGH. The I
2003 May 14
2
handbook, full pagewidth
C-bus registers
30 Mbits/s up to 3.2 Gbits/s
A-rate fibre optic transmitter
(1) The master receiver must signal an end of data to the slave transmitter by not generating an acknowledge on the last byte that has been clocked
2
C-bus registers are accessed in I
out of the slave.
2
C-bus registers are listed in Table 10.
S
ADDRESS
SLAVE
acknowledge
R/W
from slave
1
2
C-bus control mode by setting pin UI HIGH or leaving pin UI open circuit.
A
MSB
Fig.17 Read protocol.
first byte
DATA
from master
acknowledge
22
LSB
A
(1)
from master
acknowledge
A
MSB
(1)
last byte
DATA
from master
acknowledge
LSB
TZA3017HW
A
Product specification
MDB387
P
(1)