Rainbow-electronics DS1616 Bedienungsanleitung PDF herunterladen (Seite 17)

DS1616

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The value in this register decrements each time the seconds register rolls over from 59 to 00 until the Start

Delay register reaches a value of 00h.

TEMPERATURE-HIGH THRESHOLD REGISTER

MSb LSb

TH7 TH6 TH5 TH4 TH3 TH2 TH1 TH0

This register determines the high threshold for interrupt generation from the thermal sensor. If the

temperature is greater than or equal to the value in this register, an interrupt will be activated if the

Temperature High Interrupt Enable (THIE) bit is set to a logic 1.

TEMPERATURE-LOW THRESHOLD REGISTER

MSb LSb

TL7 TL6 TL5 TL4 TL3 TL2 TL1 TL0

This register determines the low threshold for interrupt generation from the thermal sensor. If the

temperature is less than or equal to the value in this register, an interrupt will be activated if the

Temperature Low Interrupt Enable (TLIE) bit is set to a logic 1.

CURRENT TEMPERATURE REGISTER

MSb LSb

CT7 CT6 CT5 CT4 CT3 CT2 CT1 CT0

This register provides the most recently acquired temperature measurement if the CS0 bit in the Control 2

command. It contains either the most recently measured sample from automatic datalogging or it

contains data that was acquired in response to a user’s instruction for an immediate temperature

measurement. When the DS1615 is not on a mission, an immediate measurement is acquired by issuing

the Read Data command with CS0 set to 1.

After issuing the Read Data command, the value in this register is valid only if the Data Ready (DR) bit

in the Status 1 register is a logic 1.

CURRENT SAMPLES COUNTER

This 3-byte register set provides the number of samples that have been logged during the current data

logging operation (also known as a “mission”). The contents of this register can be used by software to

point to the most recent data sample in the Datalog NV RAM. The data in these registers are cleared by

enabling and issuing the Clear Memory command.

TOTAL SAMPLES COUNTER

This three-byte register set provides the total number of data samples that have been logged during the

life of the product. This value cannot be written by the end user. The value in this register is maintained

as long as the lithium energy source is available.

CURRENT ADC DATA REGISTERS [1-3]

MSb LSb

CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 27 28

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Rainbow-electronics DS1616 Bedienungsanleitung Seite 17