DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 45

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

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Table 02h Register Descriptions
Table 01h (Table 00h in DS1859 Configuration), FCh to FFh: General Memory
FACTORY DEFAULT:
MEMORY TYPE:
This is memory reserved for general use.
Table 01h (Table 00h in DS1859 Configuration), FBh: Warning Masks
FACTORY DEFAULT:
MEMORY TYPE:
These bytes configure a maskable interrupt, determining which warning 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.
Table 02h, 80h to C7h: Temperature Lookup Table For DAC0
FACTORY DEFAULT:
MEMORY TYPE:
This is the lookup table (LUT) for the DAC0 settings.
FC h to FFh
80h to C7h
FBh
MON3hi
bit5:0
bit7
bit7
bit7
bit6
bit7
MON3wrnhimask: Determines if an interrupt is generated for a High MON3 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
MON3wrnlomask: Determines if an interrupt is generated for a Low MON3 Warning Flag.
0 = No interrupt is generated.
1 = An interrupt is generated.
Reserved.
MON3lo
00h
00h
00h
Shadowed Memory (SEE)
Shadowed Memory (SEE)
Nonvolatile (EEPROM)
____________________________________________________________________
SFP Laser Controller and
EEPROM
EEPROM
RESERVED
Diagnostic IC
bit0
bit0
bit0
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