SFP Laser Controller and
Diagnostic IC
Lower Memory Register 06h to 07h: Low Temperature Warning Limit
FACTORY DEFAULT:
MEMORY TYPE:
0000h
Shadowed Memory (SEE)
06h
07h
S
2 -1
2 6
2 -2
2 5
2 -3
2 4
2 -4
2 3
2 -5
2 2
2 -6
2 1
2 -7
2 0
2 -8
bit7
Temperature measurements below this threshold will set its corresponding warning bit (Lower Memory Register 74h, bit 6).
Measurements above this threshold will automatically clear its warning bit.
Lower Memory Register 08h to 09h: High V CC Alarm Limit
bit0
FACTORY DEFAULT:
MEMORY TYPE:
0000h
Shadowed Memory (SEE)
2
2
2
2
2
2
2
2
08h
09h
15
7
2 14
6
2 13
5
2 12
4
2 11
3
2 10
2
2 9
1
2 8
2 0
bit7
bit0
Voltage measurements of the V CC input above this threshold will set its corresponding alarm bit (Lower Memory Register 70h, bit 5).
Measurements below this threshold will automatically clear its alarm bit.
Lower Memory Register 0Ah to 0Bh: Low V CC Alarm Limit
FACTORY DEFAULT:
MEMORY TYPE:
0000h
Shadowed Memory (SEE)
2
2
2
2
2
2
2
0Ah
0Bh
2 15
7
2 14
6
2 13
5
2 12
4
2 11
3
2 10
2
2 9
1
2 8
2 0
bit7
bit0
Voltage measurements of the V CC input below this threshold will set its corresponding alarm bit (Lower Memory Register 70h, bit 4).
Measurements above this threshold will automatically clear its alarm bit.
Lower Memory Register 0Ch to 0Dh: High V CC Warning Limit
FACTORY DEFAULT:
MEMORY TYPE:
0000h
Shadowed Memory (SEE)
2
2
2
2
2
2
2
0Ch
0Dh
2 15
7
2 14
6
2 13
5
2 12
4
2 11
3
2 10
2
2 9
1
2 8
2 0
bit7
bit0
Voltage measurements of the V CC input above this threshold will set its corresponding warning bit (Lower Memory Register 74h, bit
5). Measurements below this threshold will automatically clear its warning bit.
28
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