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DS1886_V1 Datasheet - Page 71

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A2h Table 02h, Register AEh–AFh: INTERNAL TEMP OFFSET
FACTORY CALIBRATED
READ ACCESS
WRITE ACCESS
MEMORY TYPE
AEh
S
1
AFh
2
BIT 7
Allows for offset control of temp 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.
A2h Table 02h, Register B0h–B3h: PW1
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
31
B0h
2
23
B1h
2
15
B2h
2
7
B3h
2
BIT 7
The PWE value is compared against the value written to this location to enable PW1 access. At power-on, the
PWE value is set to all ones. Thus, writing these bytes to all ones grants PW1 access on power-on without writing
the password entry. All reads of this register are 00h.
SFP and PON ONU Controller
with Digital LDD Interface
PW2 or (PW1 and RWTBL246) or (PW1 and RBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
8
7
6
2
2
2
0
-1
-2
2
2
2
FFFF FFFFh
N/A
PW2 or (PW1 and WPW1)
Nonvolatile (SEE)
30
29
28
2
2
2
22
21
20
2
2
2
14
13
12
2
2
2
6
5
4
2
2
2
DS1886
5
4
3
2
2
2
-3
-4
-5
2
2
2
27
26
25
2
2
2
19
18
17
2
2
2
11
10
9
2
2
2
3
2
1
2
2
2
2
2
-6
2
BIT 0
24
2
16
2
8
2
0
2
BIT 0
71

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