参数资料
型号: DS1877T+T&R
厂商: Maxim Integrated Products
文件页数: 33/65页
文件大小: 0K
描述: IC CTLR/MON SFP 1-2CH 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: SFP+ 控制器
输入类型: 逻辑
输出类型: 逻辑
接口: I²C
电流 - 电源: 2.5mA
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
其它名称: 90-1877T+TRL
39
Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Lower Memory, Register 7Fh: TABLE SELECT (TBL SEL)
Lower Memory, Registers 75h
–7Ah: RESERVED
Lower Memory, Registers 7Bh
–7Eh: PASSWORD ENTRY (PWE)
POWER-ON VALUE
00h
READ ACCESS
N/A
WRITE ACCESS
N/A
A2h AND B2h MEMORY
N/A
MEMORY TYPE
N/A
These registers are reserved. The value when read is 00h.
POWER-ON VALUE
FFFF FFFFh
READ ACCESS
N/A
WRITE ACCESS
All
A2h AND B2h MEMORY
Common A2h and B2h memory locations
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 device. 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.
POWER-ON VALUE
TBLSELPON (Table 02h, Register C7h)
READ ACCESS
All
WRITE ACCESS
All
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Volatile
7Fh
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The upper memory tables of the device 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 (Table 02h, Register C7h).
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