DS1864 datasheet(38/72 Pages) DALLAS

38 / 72 page

SFP Laser Controller and

Diagnostic IC

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Lower Memory Register 74h: Warning Flags

POWER-ON VALUE:

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

MEMORY TYPE:

Volatile (SRAM)

74h

TMPhi

TMPlo

VCChi

VCClo

MON1hi

MON1lo

MON2hi

MON2lo

bit7

bit0

bit7

TMPwrnhi: High Warning Status for Temperature measurement.

0 = Temperature measurement is below set limit.

1 = Temperature measurement is above set limit.

bit6

TMPwrnlo: Low Warning Status for Temperature measurement.

0 = Temperature measurement is above set limit.

1 = Temperature measurement is below set limit.

bit5

VCCwrnhi: High Warning Status for VCC measurement.

0 = VCC measurement is below set limit.

1 = VCC measurement is above set limit.

bit4

VCCwrnlo: Low Warning Status for VCC measurement.

0 = VCC measurement is above set limit.

1 = VCC measurement is below set limit.

bit3

MON1wrnhi: High Warning Status for MON1 measurement.

0 = MON1 measurement is below set limit.

1 = MON1 measurement is above set limit.

bit2

MON1wrnlo: Low Warning Status for MON1 measurement.

0 = MON1 measurement is above set limit.

1 = MON1 measurement is below set limit.

bit1

MON2wrnhi: High Warning Status for MON2 measurement.

0 = MON2 measurement is below set limit.

1 = MON2 measurement is above set limit.

bit0

MON2wrnlo: Low Warning Status for MON2 measurement.

0 = MON2 measurement is above set limit.

1 = MON2 measurement is below set limit.

DS1864 Datasheet(PDF) 38 Page - Dallas Semiconductor

DS1864 Datasheet(HTML) 38 Page - Dallas Semiconductor

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