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DS1864 Datasheet, PDF (31/72 Pages) Dallas Semiconductor – SFP Laser Controller and Diagnostic IC
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SFP Laser Controller and
Diagnostic IC
Lower Memory Register 1Eh to 1Fh: Low MON2 Warning Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
1Eh
215
214
213
212
211
210
29
28
1Fh
27
26
25
24
23
22
21
20
bit7
bit0
Voltage measurements of the MON2 input below this threshold will set its corresponding warning bit (Lower Memory Register 74h, bit 0).
Measurements above this threshold will automatically clear its warning bit.
Lower Memory Register 20h to 21h: High MON3 Alarm Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
20h
215
214
213
212
211
210
29
28
21h
27
26
25
24
23
22
21
20
bit7
bit0
Voltage measurements of the MON3 input above this threshold will set its corresponding alarm bit (Lower Memory Register 71h, bit 7).
Measurements below this threshold will automatically clear its alarm bit.
Lower Memory Register 22h to 23h: Low MON3 Alarm Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
22h
215
214
213
212
211
210
29
28
23h
27
26
25
24
23
22
21
20
bit7
bit0
Voltage measurements of the MON3 input below this threshold will set its corresponding alarm bit (Lower Memory Register 71h, bit 6).
Measurements above this threshold will automatically clear its alarm bit.
Lower Memory Register 24h to 25h: High MON3 Warning Limit
FACTORY DEFAULT:
0000h
MEMORY TYPE:
Shadowed Memory (SEE)
24h
215
214
213
212
211
210
29
28
25h
27
26
25
24
23
22
21
20
bit7
bit0
Voltage measurements of the MON3 input above this threshold will set its corresponding warning bit (Lower Memory Register 75h, bit 7).
Measurements below this threshold will automatically clear its warning bit.
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