DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 47

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

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Table 04h (Table 01h in DS1859 Configuration), 82h: DAC0 Value
FACTORY DEFAULT:
MEMORY TYPE:
DAC values from 00h to FFh for DAC0 are stored here. Under normal operation, the LUTs automatically select the DAC setting
according to the values programmed into the corresponding LUT. This byte is updated automatically based on the current
temperature and is corresponding setting in the LUT.
Table 04h (Table 01h in DS1859 Configuration), 83h: DAC1 Value
FACTORY DEFAULT:
MEMORY TYPE:
DAC values from 00h to FFh for DAC1 are stored here. Under normal operation, the LUTs automatically select the DAC setting
according to the values programmed into the corresponding LUT. This byte is updated automatically based on the current
temperature and is corresponding setting in the LUT.
Table 04h (Table 01h in DS1859 Configuration), 84h to 87h: Reserved Memory
84h to 87h
82h
83h
bit7
bit7
2
2
7
7
DAC0 value is high-impedance (Hi-Z) until programmed value is recalled from
DAC1 value is high-impedance (Hi-Z) until programmed value is recalled from
Volatile (SRAM)
Volatile (SRAM)
2
2
6
6
____________________________________________________________________
2
2
5
5
SFP Laser Controller and
2
2
4
4
RESERVED
2
2
3
3
2
2
Diagnostic IC
2
2
2
2
1
1
bit0
bit0
2
2
0
0
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