參數(shù)資料
型號: DS1878T+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 44/101頁
文件大小: 0K
描述: IC CTLR SFP W/DGTL LDD RX 28TQFN
標準包裝: 2,500
類型: SFP+ 控制器
輸入類型: 模擬,數(shù)字
輸出類型: 數(shù)字
接口: I²C,LDD,串行
電流 - 電源: 2.5mA
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應商設備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
DS1878
SFP+ Controller with Digital LDD Interface
______________________________________________________________________________________
47
Lower Memory, Register 71h: ALARM2
POWER-ON VALUE
00h
READ ACCESS
All
WRITE ACCESS
N/A
MEMORY TYPE
Volatile
71h
MON3 HI
MON3 LO
MON4 HI
MON4 LO
RESERVED
TXFS
FETG
TXFINT
BIT 7
BIT 0
BIT 7
MON3 HI: High-alarm status for MON3 measurement. A TXD event does not clear this alarm.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 6
MON3 LO: Low-alarm status for MON3 measurement. A TXD event does not clear this alarm.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 5
MON4 HI: High-alarm status for MON4 measurement. A TXD event does not clear this alarm.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 4
MON4 LO: Low-alarm status for MON4 measurement. A TXD event does not clear this alarm.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 3
RESERVED
BIT 2
TXFS: Reflects the status of the TXF pin. The status also includes any inversion caused by the INVTXF
bit (read only).
0 = TXF pin is low (after any inversion caused by the INVTXF bit).
1 = TXF pin is high (after any inversion caused by the INVTXF bit).
BIT 1
FETG: Status of Internal Signal FETG. The FETG signal is part of the internal shutdown logic.
0 = FETG is low.
1 = FETG is high.
BIT 0
TXFINT: TXFOUT Interrupt. This bit is the wire-ORed logic of all alarms and warnings wire-ANDed with
their corresponding enable bits in addition to nonmaskable alarms TXP HI, TXP LO, BIAS MAX, and HBAL.
The enable bits are found in Table 01h/05h, Registers F8h–FFh.
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