DS1876 datasheet(29/69 Pages) MAXIM

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SFP Controller with Dual LDD Interface

Lower Memory, Register 08h–09h: VCC ALARM HI

Lower Memory, Register 0Ch–0Dh: VCC WARN HI

Lower Memory, Register 0Ah–0Bh: VCC ALARM LO

Lower Memory, Register 0Eh–0Fh: VCC WARN LO

FACTORY DEFAULT

FFFFh

READ ACCESS

All

WRITE ACCESS

PW2 or (PW1 and WLOWER)

A2h AND B2h MEMORY

Common A2h and B2h memory location

MEMORY TYPE

Nonvolatile (SEE)

08h, 0Ch

215

214

213

212

211

210

09h, 0Dh

BIT 7

BIT 0

Voltage measurement updates above this unsigned threshold set its corresponding alarm or warning bit.

Voltage measurements equal to or below this threshold clear its alarm or warning bit.

FACTORY DEFAULT

0000h

READ ACCESS

All

WRITE ACCESS

PW2 or (PW1 and WLOWER)

A2h AND B2h MEMORY

Common A2h and B2h memory location

MEMORY TYPE

Nonvolatile (SEE)

0Ah, 0Eh

215

214

213

212

211

210

0Bh, 0Fh

BIT 7

BIT 0

Voltage measurement updates below this unsigned threshold set its corresponding alarm or warning bit. Voltage

measurements equal to or above this threshold clear its alarm or warning bit.

DS1876 Datasheet(PDF) 29 Page - Maxim Integrated Products

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