DS1620

Write TL [02h]

This command writes to the TL (LOW TEMPERATURE) register. After issuing this command the next

nine clock cycles clock in the 9–bit temperature limit which will set the threshold for operation of the

Read TH [A1h]

This command reads the value of the TH (HIGH TEMPERATURE) register. After issuing this command

the next nine clock cycles clock out the 9–bit temperature limit which sets the threshold for operation of

Read TL [A2h]

This command reads the value of the TL (LOW TEMPERATURE) register. After issuing this command

the next nine clock cycles clock out the 9–bit temperature limit which sets the threshold for operation of

Read Counter [A0h]

This command reads the value of the counter byte. The next nine clock cycles will output the contents of

this register.

Read Slope [A9h]

This command reads the value of the slope counter byte from the DS1620. The next nine clock cycles

will output the contents of this register.

Start Convert T [EEh]

This command begins a temperature conversion. No further data is required. In one–shot mode the

temperature conversion will be performed and then the DS1620 will remain idle. In continuous mode this

command will initiate continuous conversions.

Stop Convert T [22h]

This command stops temperature conversion. No further data is required. This command may be used to

halt a DS1620 in continuous conversion mode. After issuing this command the current temperature

measurement will be completed and then the DS1620 will remain idle until a Start Convert T is issued to

resume continuous operation.

Write Config [0Ch]

This command writes to the configuration register. After issuing this command the next eight clock cycles

clock in the value of the configuration register.

Read Config [ACh]

This command reads the value in the configuration register. After issuing this command the next eight

clock cycles output the value of the configuration register.

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