参数资料
型号: DS1875T+T&R
厂商: Maxim Integrated Products
文件页数: 52/92页
文件大小: 0K
描述: IC SFP CTRLR/TRIPLEXER 38-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 光纤
接口: I²C
电源电压: 2.85 V ~ 3.9 V
封装/外壳: 38-WFQFN 裸露焊盘
供应商设备封装: 38-TQFN(5x7)
包装: 带卷 (TR)
安装类型: 表面贴装
DS1875
PON Triplexer and SFP Controller
56
______________________________________________________________________________________
Lower Memory, Register 7Bh to 7Eh: Password Entry (PWE)
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 DS1875. Each password is 4 bytes long. The lower level password (PW1) has all the
access of a normal user plus those made available with PW1. The higher level password (PW2) has all the access of
PW1 plus those made available with PW2. The values of the passwords reside in EEPROM inside 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
00h
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 (Table 00h to 08h) of the DS1875 are accessible by writing the desired table value in this
register.
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