DS1865T+ Maxim Integrated Products, DS1865T+ Datasheet - Page 41

• Manufacturer Part Number: DS1865T+
• Description: IC PON TRIPLEXER CTRLR 28TQFN-EP
• Manufacturer: Maxim Integrated Products

Specifications of DS1865T+

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lower Memory, Register 7Bh to 7Eh: Password Entry (PWE)
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
Password Entry. There are two passwords for the DS1865. Each password is 4 bytes long. The lower level password (PW1) will
have access to all unprotected areas plus those made available with PW1. The higher level password (PW2) will have all the
access of PW1 plus those made available with PW2. The values of the passwords reside in EEPROM inside of PW2 memory. At
power-up, all PWE bits are set to 1. All reads at this location are 0.
Lower Memory, Register 7Fh: Table Select (TBL SEL)
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
The upper memory tables (Table 01h–06h) of the DS1865 are accessible by writing the desired table value in this register.
7Fh
7Bh
7Ch
7Dh
7Eh
bit7
bit7
2
2
2
2
2
31
23
15
7
7
FFFF FFFFh
N/A
All
Volatile
2
2
2
00h
All
All
Volatile
2
2
30
22
14
6
6
____________________________________________________________________
2
2
2
2
2
29
21
13
5
5
PON Triplexer Control and
2
2
2
2
2
28
20
12
4
4
2
2
2
2
2
27
19
11
3
3
Monitoring Circuit
2
2
2
2
2
26
18
10
2
2
2
2
2
2
2
25
17
9
1
1
bit0
bit0
2
2
2
2
2
24
16
8
0
0
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