Rainbow Electronics DS1874 - Manual (Page 42)

DS1874
SFP+ Controller with Digital LDD Interface
42 ______________________________________________________________________________________
POWER-ON VALUE 10h
READ ACCESS All
WRITE ACCESS N/A
MEMORY TYPE Volatile
70h TEMP HI TEMP LO VCC HI VCC LO MON1 HI MON1 LO MON2 HI MON2 LO
BIT 7 BIT 0
BIT 7
TEMP HI: High-alarm status for temperature measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 6
TEMP LO: Low-alarm status for temperature measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 5
VCC HI: High-alarm status for V CC measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 4
VCC LO: Low-alarm status for V CC measurement. This bit is set when the V CC supply is below the POA trip
point value. It clears itself when a V CC measurement is completed and the value is above the low threshold.
0 = Last measurement was equal to or above threshold setting.
1 = (Default) Last measurement was below threshold setting.
BIT 3
MON1 HI: High-alarm status for MON1 measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 2
MON1 LO: Low-alarm status for MON1 measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 1
MON2 HI: High-alarm status for MON2 measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 0
MON2 LO: Low-alarm status for MON2 measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
Lower Memory, Register 70h: ALARM 3