Ds1874 sfp+ controller with digital ldd interface – Rainbow Electronics DS1874 User Manual
Page 57
DS1874
SFP+ Controller with Digital LDD Interface
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57
Table 02h, Register 84h–85h: DAC1 VALUE
FACTORY
DEFAULT
0000h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS
(PW2 and DAC1 EN = 0) or (PW1 and RWTBL246 and DAC1 EN = 0)
MEMORY
TYPE Volatile
84h
0 0 0 0 0
0 0
2
8
85h 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT
7
BIT
0
The digital value used for DAC1 and recalled from Table 07h at the adjusted memory address found in TINDEX.
This register is updated at the end of the temperature conversion.
V
DAC1
=
REFIN
512
DAC1 VALUE
FACTORY
DEFAULT
0000h
READ ACCESS
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
WRITE ACCESS
(PW2 and DAC2 EN = 0) or (PW1 and RWTBL246 and DAC2 EN = 0)
MEMORY
TYPE Volatile
86h
0 0 0 0 0
0 0
2
8
87h 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT
7
BIT
0
The digital value used for DAC2 and recalled from Table 08h at the adjusted memory address found in TINDEX. This
register is updated at the end of the temperature conversion.
V
DAC2
=
REFIN
512
DAC2 VALUE
Table 02h, Register 86h–87h: DAC2 VALUE