Lower Memory, Register 73h: ALARM0
參數(shù)資料
型號: DS1877T+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 32/65頁
文件大?。?/td> 0K
描述: IC CTLR/MON SFP 1-2CH 28TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: SFP+ 控制器
輸入類型: 邏輯
輸出類型: 邏輯
接口: I²C
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(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
其它名稱: 90-1877T+TRL
38
Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Lower Memory, Register 73h: ALARM0
Lower Memory, Register 74h: WARN3
POWER-ON VALUE
00h
READ ACCESS
All
WRITE ACCESS
N/A
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Volatile
73h
LOS HI
LOS LO
RESERVED
BIT 7
BIT 0
BIT 7
LOS HI: High alarm status for RSSI; fast comparison. A TXD event does not clear this alarm.
0 = (default) Last comparison was below threshold setting.
1 = Last comparison was above threshold setting.
BIT 6
LOS LO: Low alarm status for RSSI; fast comparison. A TXD event does not clear this alarm.
0 = (default) Last comparison was above threshold setting.
1 = Last comparison was below threshold setting.
BITS 5:0
RESERVED
POWER-ON VALUE
10h
READ ACCESS
All
WRITE ACCESS
N/A
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Volatile
74h
TEMP HI
TEMP LO
VCC HI
VCC LO
RESERVED
BIT 7
BIT 0
BIT 7
TEMP HI: High warning status for temperature measurement.
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 6
TEMP LO: Low warning status for temperature measurement.
0 = (default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 5
VCC HI: High warning status for VCC measurement.
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 4
VCC LO: Low warning status for VCC measurement. This bit is set when the VCC supply is below the
POA trip-point value. It clears itself when a VCC measurement is completed and the value is above the
low threshold.
0 = Last measurement was equal to or above threshold setting.
1 = (default) Last measurement was below threshold setting.
BITS 3:0
RESERVED
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