DS1875T+TR MAXIM [Maxim Integrated Products], DS1875T+TR Datasheet - Page 73
DS1875T+TR
Manufacturer Part Number
DS1875T+TR
Description
PON Triplexer and SFP Controller
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS1875TTR.pdf
(92 pages)
- Current page: 73 of 92
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Table 02h, Register B0h to B3h: PW1
Table 02h, Register B4h to B7h: PW2
B4h
B5h
B6h
B7h
B0h
B1h
B2h
B3h
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
The PWE value is compared against the value written to this location to enable PW2 access. At power-on, the
PWE value is set to all 1s. Thus writing these bytes to all 1s grants PW2 access on power-on without writing
the password entry. All reads of this register are 00h.
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 1s. Thus, writing these bytes to all 1s grants PW1 access on power-on without writing
the password entry. All reads of this register are 00h.
BIT 7
BIT 7
2
2
2
______________________________________________________________________________________
2
2
2
2
2
31
23
15
31
23
15
7
7
2
2
2
2
2
2
2
2
30
22
14
30
22
14
6
6
PON Triplexer and SFP Controller
FFFF FFFFh
N/A
PW2
Nonvolatile (SEE)
FFFF FFFFh
N/A
PW2
Nonvolatile (SEE)
2
2
2
2
2
2
2
2
29
21
13
29
21
13
5
5
2
2
2
2
2
2
2
2
28
20
12
28
20
12
4
4
2
2
2
2
2
2
2
2
27
19
11
27
19
11
3
3
2
2
2
2
2
2
2
2
26
18
10
26
18
10
2
2
2
2
2
2
2
2
2
2
25
17
25
17
9
1
9
1
BIT 0
BIT 0
2
2
2
2
2
2
2
2
24
16
24
16
8
0
8
0
73
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