ds1878 Maxim Integrated Products, Inc., ds1878 Datasheet - Page 77
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ds1878
Manufacturer Part Number
ds1878
Description
Sfp+ Controller With Digital Ldd Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS1878.pdf
(98 pages)
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Table 02h, Register C2h: MODTI
Table 02h, Register C3h: DAC1TI
C3h
C2h
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
SFP+ Controller with Digital LDD Interface
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
DAC1 temperature index (DAC1TI) defines the TempCo boundary for the DAC1 LUT. The DAC1TC bit (Table 02h,
Register C6h) defines the polarity of the TempCo. This value is compared with the adjusted memory address
used during the LUT recall, not the value in the TINDEX register (Table 02h, Register 81h).
The modulation temperature index defines the TempCo boundary for the MODULATION LUT. The MODTC bit
(Table 02h, Register C6h) defines the polarity of the TempCo.
BIT 7
BIT 7
2
______________________________________________________________________________________
2
7
7
2
2
6
6
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
2
2
5
5
DAC1TI =
MODTI =
2
2
Temp _ Value + 40°C
Temp _ Value + 40°C
4
4
2°C
4°C
2
2
3
3
+ 80h
+ 80h
2
2
2
2
2
2
1
1
BIT 0
BIT 0
2
2
0
0
77
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