Datasheet

DS1878
SFP+ Controller with Digital LDD Interface
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Table 02h, Register 8Dh: RESERVED
FACTORY DEFAULT 00h
READ ACCESS N/A
WRITE ACCESS N/A
MEMORY TYPE Nonvolatile (SEE)
This register is reserved.
FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS PW2 or (PW1 and RWTBL246)
MEMORY TYPE Nonvolatile (SEE)
8Eh RESERVED MON1
2
MON1
1
MON1
0
RESERVED MON2
2
MON2
1
MON2
0
BIT 7 BIT 0
Allows for right-shifting the final answer of MON1 and MON2 voltage measurements. This allows for scaling the
measurements to the smallest full-scale voltage and then right-shifting the final result so the reading is weighted
to the correct LSB.
Table 02h, Register 8Eh: RIGHT-SHIFT
1
(RSHIFT
1
)
FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS PW2 or (PW1 and RWTBL246)
MEMORY TYPE Nonvolatile (SEE)
8Ch 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
This value becomes the I
2
C slave address for the main memory when the ASEL (Table 02h, Register 89h) bit is
set. If A0h is programmed to this register, the auxiliary memory is disabled.
Table 02h, Register 8Ch: DEVICE ADDRESS