DS1620

FUNCTION EXAMPLE

Example: CPU sets up DS1620 for continuous conversion and thermostatic function.

CPU MODE

DS1620 MODE

(3-WIRE)

DATA (LSB FIRST)

COMMENTS

TX

RX

0Ch

CPU issues Write Config command

TX

RX

00h

CPU sets DS1620 up for continuous

conversion

TX

RX

CPU issues Reset to DS1620

TX

RX

01h

CPU issues Write TH command

TX

RX

0050h

CPU sends data for TH limit of +40˚C

TX

RX

CPU issues Reset to DS1620

TX

RX

02h

CPU issues Write TL command

TX

RX

0014h

CPU sends data for TL limit of +10˚C

TX

RX

CPU issues Reset to DS1620

TX

RX

A1h

CPU issues Read TH command

RX

TX

0050h

DS1620 sends back stored value of TH for

CPU to verify

TX

RX

CPU issues Reset to DS1620

TX

RX

A2h

CPU issues Read TL command

RX

TX

0014h

DS1620 sends back stored value of TL for

CPU to verify

TX

RX

CPU issues Reset to DS1620

TX

RX

EEh

CPU issues Start Convert T command

TX

RX

CPU issues Reset to DS1620

READ DATA TRANSFER Figure 4

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