Datasheet

DS1878
SFP+ Controller with Digital LDD Interface
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FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS N/A
MEMORY TYPE Volatile
FBh 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
This byte is used during maunual 3-wire communication. When a manual read is initiated, the return data is
stored in this register.
FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS N/A
MEMORY TYPE Nonvolatile (SEE)
FCh 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
A 3-wire slave register. This value is read from the Maxim laser driver with the 3-wire interface every t
RR
(see the
Maxim laser driver’s electrical characteristics).
Table 02h, Register FBh: READ
Table 02h, Register FCh: TXSTAT1
Table 02h, Register FDh: TXSTAT2
FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS N/A
MEMORY TYPE Nonvolatile (SEE)
FDh 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
A 3-wire slave register. This value is read from the Maxim laser driver with the 3-wire interface every t
RR
(see the
Maxim laser driver’s electrical characteristics).