參數(shù)資料
型號(hào): DS1884AT+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 50/92頁(yè)
文件大?。?/td> 0K
描述: IC SFP PON ONU CTRLR 24TQFN
標(biāo)準(zhǔn)包裝: 2,500
系列: *
DS1884
SFP and PON ONU Controller
with Digital LDD Interface
54
Maxim Integrated
A2h Lower Memory, Register 7Bh–7Eh: PASSWORD ENTRY (PWE)
A2h Lower Memory, Register 7Fh: TBL SEL
POWER-ON VALUE
FFFF FFFFh
READ ACCESS
N/A
WRITE ACCESS
ALL
MEMORY TYPE
Volatile
7Bh
231
230
229
228
227
226
225
224
7Ch
223
222
221
220
219
218
217
216
7Dh
215
214
213
212
211
210
29
28
7Eh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
There are two passwords for the DS1884. Each password is 4 bytes long. The lower level password (PW1) will have all the
access of a normal user plus those made available with PW1. The higher level password (PW2) will have all of 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.
POWER-ON VALUE
TBLSELPON (A2h Table 02h, Register C7h).
READ ACCESS
All
WRITE ACCESS
All
MEMORY TYPE
Volatile
7Fh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The upper memory tables of the DS1884 are accessible by writing the desired table value in this register. The power-on
value of this register is defined by the value written to TBLSELPON (A2h Table 02, Register C7h).
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