Owner's manual

DS1874
SFP+ Controller with Digital LDD Interface
64 ______________________________________________________________________________________
Table 02h, Register A2h–A3h: V
CC
OFFSET
Table 02h, Register A4h–A5h: MON1 OFFSET
Table 02h, Register A6h–A7h: MON2 OFFSET
Table 02h, Register A8h–A9h: MON3 FINE OFFSET
Table 02h, Register AAh–ABh: MON4 OFFSET
Table 02h, Register ACh–ADh: MON3 COARSE OFFSET
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)
A2h, A4h,
A6h, A8h,
AAh, ACh
S S 2
15
2
14
2
13
2
12
2
11
2
10
A3h, A5h,
A7h, A9h,
ABh, ADh
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
BIT 7 BIT 0
Allows for offset control of these voltage measurements if desired. This number is two’s complement.
FACTORY CALIBRATED
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS PW2 or (PW1 and RWTBL246)
MEMORY TYPE Nonvolatile (SEE)
AEh S 2
8
2
7
2
6
2
5
2
4
2
3
2
2
AFh 2
1
2
0
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
BIT 7 BIT 0
Allows for offset control of temperature measurement if desired. The final result must be XORed with BB40h
before writing to this register. Factory calibration contains the desired value for a reading in degrees Celsius.
Table 02h, Register AEh–AFh: INTERNAL TEMP OFFSET