DS1864 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

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DS1864

SFP Laser Controller and Diagnostic IC

Dallas Semiconductor -> Maxim Integrated 

SFP Laser Controller and

Diagnostic IC

Table 01h (Table 00h in DS1859 Configuration), F9h: Alarm Masks

FACTORY DEFAULT:

00h

MEMORY TYPE:

Shadowed Memory (SEE)

F9h MON3hi

bit7

MON3lo

RESERVED

bit0

These bytes configure a maskable interrupt, determining which alarm flags assert the MINT bit (Lower Memory, byte 71h, bit 0). If

one of the interrupts is desired, its bit must be written to a 1 here. If no interrupt is desired, the bit should be written to a 0.

These bit locations do not match the register locations as called out in the SFF-8472, therefore another four byte set is also stored in

another location (Table 05h, registers F8h to FBh). The MASK configuration bit (Table 04h (Table 01h in DS1859 configuration),

register DAh, bit 0) determines which mask sets is used to generate the MINT interrupt.

bit7

bit6

bit5:0

MONalm3himask: Determines if an interrupt is generated for a High MON3 Alarm Flag.

0 = No interrupt is generated.

1 = An interrupt is generated.

MON3almlomask: Determines if an interrupt is generated for a Low MON3 Alarm Flag.

0 = No interrupt is generated.

1 = An interrupt is generated.

Reserved.

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