DS1874 datasheet(49/88 Pages) MAXIM

49 / 88 page

SFP+ Controller with Digital LDD Interface

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Table 01h, Register F8h: ALARM EN3

POWER-ON VALUE

00h

READ ACCESS

PW2 or (PW1 and RWTBL1C) or (PW1 and RTBL1C)

WRITE ACCESS

PW2 or (PW1 and RWTBL1C)

MEMORY TYPE

Nonvolatile (SEE)

F8h

TEMP HI

TEMP LO

VCC HI

VCC LO

MON1 HI

MON1 LO

MON2 HI

MON2 LO

BIT 7

BIT 0

Layout is identical to ALARM3 in Lower Memory, Register 70h. Enables alarms to create TXFINT (Lower Memory,

or 05h.

BIT 7

TEMP HI:

0 = Disables interrupt from TEMP HI alarm.

1 = Enables interrupt from TEMP HI alarm.

BIT 6

TEMP LO:

0 = Disables interrupt from TEMP LO alarm.

1 = Enables interrupt from TEMP LO alarm.

BIT 5

VCC HI:

0 = Disables interrupt from VCC HI alarm.

1 = Enables interrupt from VCC HI alarm.

BIT 4

VCC LO:

0 = Disables interrupt from VCC LO alarm.

1 = Enables interrupt from VCC LO alarm.

BIT 3

MON1 HI:

0 = Disables interrupt from MON1 HI alarm.

1 = Enables interrupt from MON1 HI alarm.

BIT 2

MON1 LO:

0 = Disables interrupt from MON1 LO alarm.

1 = Enables interrupt from MON1 LO alarm.

BIT 1

MON2 HI:

0 = Disables interrupt from MON2 HI alarm.

1 = Enables interrupt from MON2 HI alarm.

BIT 0

MON2 LO:

0 = Disables interrupt from MON2 LO alarm.

1 = Enables interrupt from MON2 LO alarm.

DS1874 Datasheet(PDF) 49 Page - Maxim Integrated Products

DS1874 Datasheet(HTML) 49 Page - Maxim Integrated Products

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