DS1864 datasheet(35/72 Pages) DALLAS

35 / 72 page

SFP Laser Controller and

Diagnostic IC

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Lower Memory Register 70h: Alarm Flags

POWER-ON VALUE:

Determined after each channel’s first analog-to-digital conversion.

MEMORY TYPE:

Volatile (SRAM)

70h

TMPhi

TMPlo

VCChi

VCClo

MON1hi

MON1lo

MON2hi

MON2lo

bit7

bit0

bit7

TMPalmhi: High Alarm Status for Temperature measurement.

0 = Temperature measurement is below set limit.

1 = Temperature measurement is above set limit.

bit6

TMPalmlo: Low Alarm Status for Temperature measurement.

0 = Temperature measurement is above set limit.

1 = Temperature measurement is below set limit.

bit5

VCCalmhi: High Alarm Status for VCC measurement.

0 = VCC measurement is below set limit.

1 = VCC measurement is above set limit.

bit4

VCCalmlo: Low Alarm Status for VCC measurement.

0 = VCC measurement is above set limit.

1 = VCC measurement is below set limit.

bit3

MON1almhi: High Alarm Status for MON1 measurement.

0 = MON1 measurement is below set limit.

1 = MON1 measurement is above set limit.

bit2

MON1almlo: Low Alarm Status for MON1 measurement.

0 = MON1 measurement is above set limit.

1 = MON1 measurement is below set limit.

bit1

MON2almhi: High Alarm Status for MON2 measurement.

0 = MON2 measurement is below set limit.

1 = MON2 measurement is above set limit.

bit0

MON2almlo: Low Alarm Status for MON2 measurement.

0 = MON2 measurement is above set limit.

1 = MON2 measurement is below set limit.

DS1864 Datasheet(PDF) 35 Page - Dallas Semiconductor

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