DS1878T+ Maxim Integrated Products, DS1878T+ Datasheet - Page 69
DS1878T+
Manufacturer Part Number
DS1878T+
Description
IC CTLR SFP W/DGTL LDD RX 28TQFN
Manufacturer
Maxim Integrated Products
Type
SFP+ Controllerr
Datasheet
1.DS1878TTR.pdf
(98 pages)
Specifications of DS1878T+
Input Type
*
Output Type
*
Interface
*
Current - Supply
*
Mounting Type
Surface Mount
Package / Case
28-WFQFN exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 02h, Register B0h–B3h: PW1
Table 02h, Register B4h–B7h: PW2
B0h
B1h
B2h
B3h
B4h
B5h
B6h
B7h
SFP+ Controller with Digital LDD Interface
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
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.
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 ones. Thus, writing these bytes to all ones grants PW2 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
FFFF FFFFh
N/A
PW2 or (PW1 and WPW1)
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
69
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