DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 70

• Manufacturer Part Number: DS1864
• Description: SFP Laser Controller and Diagnostic IC
• Manufacturer: Maxim Integrated Products

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SFP Laser Controller and
Diagnostic IC
Figure 18. I
Figure 19. I
for SCL. Pullup resistor values should be chosen to
ensure that the rise and fall times listed in the AC
Electrical Characteristics table are within specification.
70
SDA
SCL
SDA
SCL
CONDITION
____________________________________________________________________
START
STOP
2
2
C Data Transfer Protocol
C AC Characteristics
t
BUF
START
MSB
1
t
HD:STA
2
t
LOW
SLAVE ADDRESS
6
t
R
t
HD:DAT
7
DIRECTION
t
F
R/W
t
BIT
HIGH
8
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
t
SU:DAT
ACK
9
REPEATED
START
1
t
SU:STA
t
2
REPEATED IF MORE BYTES
HD:STA
ARE TRANSFERRED
3–7
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
8
ACK
9
t
SP
OR REPEATED
CONDITION
CONDITION
t
START
SU:STO
STOP