Rainbow Electronics DS1631 - Manual (Page 6)

DS1631
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CONFIGURATION REGISTER BIT DESCRIPTIONS Table 5
BIT NAME
(USER ACCESS)
FUNCTIONAL DESCRIPTION
DONE—Temperature
Conversion Done
(Read Only) Power-up/POR state = 1
DONE = 0—Temperature conversion is in progress.
DONE = 1—Temperature conversion is complete.
THF—Temperature High Flag
(Read/Write) Power-up/POR state = 0.
THF = 0—The measured temperature has not exceeded the value
stored in the T
H
register since power-up.
THF = 1—At some point since power-up the measured temperature
has been higher than the value stored in the T
H
register. THF will
remain a 1 until it is over-written with a 0 by the user or until the
power is cycled.
TLF—Temperature Low Flag
(Read/Write) Power-up/POR state = 0
TLF = 0—The measured temperature has not been lower than the
value stored in the T
L
register since power-up.
TLF = 1—At some point since power-up the measured temperature
has been lower than the value stored in the T
L
register. TLF will
remain a 1 until it is over-written with a 0 by the user or until the
power is cycled.
NVB—NV Memory
Busy
(Read Only) Power-up/POR state = 0
NVB = 1—A write to EEPROM
memory is in progress
NVB = 0—NV memory is not busy.
R1—Resolution Bit 1
(Read/Write) Power-up/POR state = 1
Used to set conversion, T
H
, and T
L
resolution (see Table 4)
R0—Resolution Bit 0
(Read/Write) Power-up/POR state = 1
Used to set conversion, T
H
, and T
L
resolution (see Table 4)
POL*— T
OUT
Polarity
(Read/Write)
Power-up/POR state = last value written to this bit
POL = 1—T
OUT
is active high.
POL = 0—T
OUT
is active low.
1SHOT*— Conversion Mode
(Read/Write) Power-up/POR state = last value written to this bit
1SHOT = 1—One-shot mode. The Start Convert T command will
cause a single temperature conversion and then the device will return
to a low-power standby state.
1SHOT = 0—Continuous conversion mode. The Start Convert T
command will initiate continuous temperature conversions.
*Stored in EEPROM