Instruction Manual

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DS1876
SFP Controller with Dual LDD Interface
Table 06h, Register C8h–DFh: EMPTY
Table 06h, Register E0h–E7h: HBATH LUT
FACTORY DEFAULT 00h
READ ACCESS N/A
WRITE ACCESS N/A
A2h AND B2h MEMORY N/A
MEMORY TYPE None
These registers do not exist.
FACTORY DEFAULT 00h
READ ACCESS PW2 or (PW1 and RWTBL46)
WRITE ACCESS PW2 or (PW1 and RWTBL46)
A2h AND B2h MEMORY Different A2h and B2h memory locations
MEMORY TYPE Nonvolatile (EE)
E0h–E7h 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
BIT 7 BIT 0
The high bias alarm threshold (HBATH) LUT is used to temperature compensate the bias QT threshold (HBIAS).
The table below shows the range of temperature for each byte’s location. The table shows a rising temperature;
for a falling temperature there is 1NC of hysteresis.
E0h
Less than or equal to -8NC
E1h
Greater than -8NC up to +8NC
E2h
Greater than +8NC up to +24NC
E3h
Greater than +24NC up to +40NC
E4h
Greater than +40NC up to +56NC
E5h
Greater than +56NC up to +72NC
E6h
Greater than +72NC up to +88NC
E7h
Greater than +88NC