tza3017hw NXP Semiconductors, tza3017hw Datasheet - Page 21

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

Philips Semiconductors
I
Addressing
Before any data is transmitted on the I
sent after the start condition.
The master transmitter/receiver either reads from the read-registers or writes to the write-registers. It is not possible to
read from and write to the same register. Figure 15 shows how the slave and register address bytes are defined.
Read/Write protocols
The protocol for writing to a single register is shown in Fig.16. The transmitter sends the address of the slave device,
waits for an acknowledge from the slave, sends register address, waits for an acknowledge from the slave, sends data
byte, waits for an acknowledge from the slave, followed by a stop condition.
2003 May 14
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handbook, full pagewidth
C-BUS PROTOCOL
30 Mbits/s up to 3.2 Gbits/s
A-rate fibre optic transmitter
MSB
S
Slave address
ADDRESS
SLAVE
2
C-bus, the device which should respond is addressed first. The address byte is
Fig.15 Slave and register addresses.
acknowledge
from slave
R/W
0
A 1
MSB
Fig.16 Write protocol.
R/W
LSB
REGISTER
ADDRESS
21
MSB
1
acknowledge
from slave
A
MSB
one byte transferred
Register address
DATA
acknowledge
from slave
LSB
A
MDB386
P
MDB070
LSB
TZA3017HW
Product specification