jsh-42l3ad3-5 JDS Uniphase Corporation, jsh-42l3ad3-5 Datasheet - Page 8

• Manufacturer Part Number: jsh-42l3ad3-5
• Description: Sfp Pluggable 4/2/1g Fc/gbe Fp And Dfb Transceiver Rohs 6/6 Jsh-42l3ad3-5, Jsh-42l3ad3-5g, Jsh-42l3ad3-20
• Manufacturer: JDS Uniphase Corporation


Two-wire Interface Figure 5
Two-wire Interface Figure 6
Two-wire Interface Figure 7
Two-wire Interface Figure 8
SDA OUT
S
T
A
R
T
SDA
SCL
SDA IN
SDA
SCL
S
T
A
R
T
SCL
SDA
S
T
A
R
T
SCL
(Continued from Two-Wire Interface Figure 6.)
0
(Continued from Two-Wire Interface Figure 6.)
0
1
t
SU.STA
1
t
1
An example data word.
HD.STA
0
(65 in this example)
1
An example data word.
Acknowledge from SFF
Byte entered to allow the
user to set the starting
address for an Optical
Monitoring data write.
(65 in this example)
1
1
Acknowledge from SFF
0
Acknowledge from SFF
0
0
t
F
0
0
0
1
t
AA
t
1
LOW
0
Set Data Address Sequence for Write Timing
Write Data (Single-Byte) Sequence Timing
Write Data (Multi-Byte) Sequence Timing
Critical Timings
Parameters are defined in Two-Wire Interface Timing Specifications on page 14.
SFP PlUGGABlE 4/2/1G FC/GBE FP AND DFB TRANSCEIvER ROHS 6/6
0
0
1
1
t
HD.DAT
t
HIGH
1
0
A
C
K
A
C
K
A
C
K
S
T
O
P
1
1
t
LOW
t
DH
Note: The first byte after a start condition must always be
an acknowledge.
the address byte for the transceiver (either A0 or A2 with
the low order bit indicating write/read) or there will not be
0
0
example, 0 through 255 available)
Data address to start writing
data to. (Address 128 in this
An example data word.
(9A in this example)
Acknowledge from SFF
0
0
t
SU.DAT
1
Acknowledge from SFF
0
1
0
t
SU.STO
0
0
1
0
A
C
K
0
t
R
t
S
T
O
P
BUF
A
C
K