Ds1876 sfp controller with dual ldd interface – Rainbow Electronics DS1876 User Manual
Page 38

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DS1876
SFP Controller with Dual LDD Interface
Lower Memory, Register 73h: RESERVED
Lower Memory, Register 74h: WARN
3
POWER-ON VALUE
READ ACCESS
N/A
WRITE ACCESS
N/A
A2h AND B2h MEMORY
N/A
MEMORY TYPE
N/A
This register is reserved.
POWER-ON VALUE
10h
READ ACCESS
All
WRITE ACCESS
N/A
A2h AND B2h MEMORY
Different A2h and B2h memory locations
MEMORY TYPE
Volatile
74h
TEMP HI
TEMP LO
VCC HI
VCC LO
BMON HI
BMON LO
PMON HI
PMON LO
BIT 7
BIT 0
BIT 7
TEMP HI: High warning 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 warning 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 warning 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 warning 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
BMON HI: High warning status for BMON measurement.
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 2
BMON LO: Low warning status for BMON measurement.
0 = (default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 1
PMON HI: High warning status for PMON measurement.
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 0
PMON LO: Low warning status for PMON measurement.
0 = (default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.