DS1864 datasheet(36/72 Pages) DALLAS

36 / 72 page

SFP Laser Controller and

Diagnostic IC

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Lower Memory Register 71h: Alarm Flags

POWER-ON VALUE:

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

MEMORY TYPE:

Volatile (SRAM)

71h

MON3hi

MON3lo

RESERVED

MINT

bit7

bit0

bit7

MON3almhi: High Alarm Status for MON3 measurement.

0 = MON3 measurement is below set limit.

1 = MON3 measurement is above set limit.

bit6

MON3almlo: Low Alarm Status for MON3 measurement.

0 = MON3 measurement is above set limit.

1 = MON3 measurement is below set limit.

bit5:1

Reserved

bit0

MINT: Maskable Interrupt. An interrupt output signal that is determined by unmasked alarm and

warning flags. Masks of alarm and warning flags are located in Table 01h (Table 00h in DS1859

configuration), bytes F8h through FBh, or Table 05h, bytes F8h through FBh, depending on the state

of the MASK bit (Table 04h (Table 01h in DS1859 configuration), byte DAh, bit 0), and determine the

state of MINT. MINT is maskable to 0 if no interrupt is desired by setting bytes F8h through FBh to a

value of 00h.

Lower Memory Register 72h: Reserved Memory

72h

RESERVED

DS1864 Datasheet(PDF) 36 Page - Dallas Semiconductor