Datasheet

DS1886
SFP and PON ONU Controller
with Digital LDD Interface
53Maxim Integrated
A2h Lower Memory, Register 74h: WARN
3
POWER-ON VALUE 10h
READ ACCESS All
WRITE ACCESS N/A
MEMORY TYPE Volatile
74h TEMP HI TEMP LO VCC HI VCC LO TXB HI TXB LO TXP HI TXP 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
TXB HI: High warning status for TXB measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 2
TXB LO: Low warning status for TXB measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
BIT 1
TXP HI: High warning status for TXP measurement.
0 = (Default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
BIT 0
TXP LO: Low warning status for TXP measurement.
0 = (Default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.