Datasheet

Dual, Temperature-Controlled Resistors with Inter-
nally Calibrated Monitors and Password Protection
Maxim Integrated 19
DS1856
Register Descriptions
Name of Row
• Name of Byte............. <Read/Write><Volatile><Power-On-Value>
• Name of Byte............. <Read/Write><Nonvolitile><Factory-Default-Setting>
Threshold
0
• Temp High Alarm ..... <R-all/W-pw2><NV><7FFFh> Temperature measurements above this
two's complement threshold set its corresponding alarm bit.
Measurements below this threshold clear the alarm bit.
• Temp Low Alarm....... <R-all/W-pw2><NV><8000h> Temperature measurements below this
two's complement threshold set its corresponding alarm bit.
Measurements above this threshold clear the alarm bit.
• Temp High Warning . <R-all/W-pw2><NV><7FFFh> Temperature measurements above this
two's complement threshold set its corresponding warning bit.
Measurements below this threshold clear the warning bit.
• Temp Low Warning .. <R-all/W-pw2><NV><8000h> Temperature measurements below this
two's complement threshold set its corresponding warning bit.
Measurements above this threshold clear the warning bit.
Threshold
1
• V
CC
High Alarm........ <R-all/W-pw2><NV><FFFFh> Voltage measurements of the V
CC
input above this unsigned threshold set its corresponding alarm bit.
Measurements below this threshold clear the alarm bit.
• V
CC
Low Alarm.......... <R-all/W-pw2><<NV><0000h> Voltage measurements of the V
CC
input below this unsigned threshold set its corresponding alarm bit.
Measurements above this threshold clear the alarm bit.
• V
CC
High Warning.... <R-all/W-pw2><NV><FFFFh> Voltage measurements of the V
CC
input above this unsigned threshold set its corresponding warning
bit. Measurements below this threshold clear the warning bit.
• V
CC
Low Warning..... <R-all/W-pw2><<NV><0000h> Voltage measurements of the V
CC
input below this unsigned threshold set its corresponding warning
bit. Measurements above this threshold clear the warning bit.
Threshold
2
• Mon1 High Alarm..... <R-all/W-pw2><NV><FFFFh> Voltage measurements of the Mon1
input above this unsigned threshold set its corresponding alarm bit.
Measurements below this threshold clear the alarm bit.
• Mon1 Low Alarm ...... <R-all/W-pw2><NV><0000h> Voltage measurements of the Mon1
input below this unsigned threshold set its corresponding alarm bit.
Measurements above this threshold clear the alarm bit.
• Mon1 High Warning. <R-all/W-pw2><NV><FFFFh> Voltage measurements of the Mon1
input above this unsigned threshold set its corresponding warning
bit. Measurements below this threshold clear the warning bit.
• Mon1 Low Warning .. <R-all/W-pw2><NV><0000h> Voltage measurements of the Mon1
input below this unsigned threshold set its corresponding warning
bit. Measurements above this threshold clear the warning bit.