DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 44

• Manufacturer Part Number: DS1864
• Description: SFP Laser Controller and Diagnostic IC
• Manufacturer: Maxim Integrated Products

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SFP Laser Controller and
Diagnostic IC
44
Table 01h (Table 00h in DS1859 Configuration), FAh: Warning Masks
FACTORY DEFAULT:
MEMORY TYPE:
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 of these mask sets is used to generate the MINT interrupt.
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 bytes configure a maskable interrupt, determining which warning flags assert the MINT bit (Lower Memory, byte 71h, bit 0). If
____________________________________________________________________
FAh
TMPhi
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
bit7
TMPwrnhimask: Determines if an interrupt is generated for a High Temperature Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
TMPwrnlomask: Determines if an interrupt is generated for a Low Temperature Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
V
0 = No interrupt is generated.
1 = An interrupt is generated.
V
0 = No interrupt is generated.
1 = An interrupt is generated.
MON1wrnhimask: Determines if an interrupt is generated for a High MON1 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
MONwrnlomask: Determines if an interrupt is generated for a Low MON1 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
MON2wrnhimask: Determines if an interrupt is generated for a High MON2 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
MON2wrnlomask: Determines if an interrupt is generated for a Low MON2 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
CC
CC
TMPlo
wrnhimask: Determines if an interrupt is generated for a High V
wrnlomask: Determines if an interrupt is generated for a Low V
00h
Shadowed Memory (SEE)
V
CC
hi
V
CC
lo
MON1hi
MON1lo
CC
CC
Warning Flag.
Warning Flag.
MON2hi
MON2lo
bit0