Datasheet

DS1859
Dual, Temperature-Controlled Resistors with
Internally Calibrated Monitors
16 ____________________________________________________________________
MEMORY
LOCATION
(hex)
EEPROM/
SRAM
R/W
DEFAULT
SETTING
(hex)
NAME OF LOCATION
FUNCTION
4—
R/W
0 MON2U
This bit goes high after a MON2 update has
occurred for the corresponding measurement
in bytes 66h to 67h. This bit can be written to
a 0 by the user and monitored to verify that a
conversion has occurred.
3——0 MON3U
This bit goes high after a MON3 update has
occurred for the corresponding measurement
in bytes 68h to 69h. This bit can be written to
a 0 by the user and monitored to verify that a
conversion has occurred.
2——0 — —
1——0 — —
0——0 — —
70 SRAM R Alarm flags —
Bit 7 — — — TMPhi
This alarm flag goes high when the upper limit
of the temperature setting is violated.
6——— TMPlo
This alarm flag goes high when the lower limit
of the temperature setting is violated.
5——— V
CC
hi
This alarm flag goes high when the upper limit
of the V
CC
setting is violated.
4——— V
CC
lo
This alarm flag goes high when the lower limit
of the V
CC
setting is violated.
3——— MON1hi
This alarm flag goes high when the upper limit
of the MON1 setting is violated.
2——— MON1lo
This alarm flag goes high when the lower limit
of the MON1 setting is violated.
1——— MON2hi
This alarm flag goes high when the upper limit
of the MON2 setting is violated.
0——— MON2lo
This alarm flag goes high when the lower limit
of the MON2 setting is violated.
71 SRAM R — Alarm flags —
Bit 7 — — — MON3hi
This alarm flag goes high when the upper limit
of the MON3 setting is violated.
6——— MON3lo
This alarm flag goes high when the lower limit
of the MON3 setting is violated.
5——— X —
4——— X —
Main Device (continued)