Rainbow Electronics DS1620 - Manual (Page 8)

DS1620
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DS1620 COMMAND SET Table 3
INSTRUCTION DESCRIPTION PROTOCOL
3-WIRE BUS
DATA AFTER
ISSUING
PROTOCOL NOTES
TEMPERATURE CONVERSION COMMANDS
Read Temperature Reads last converted temperature
value from temperature register. AAh
Read Counter Reads value of count remaining
from counter. A0h
Read Slope Reads value of the slope
accumulator. A9h
Start Convert T Initiates temperature conversion. EEh Idle 1
Stop Convert T Halts temperature conversion. 22h Idle 1
THERMOSTAT COMMANDS
Write TH Writes high temperature limit value
into TH register. 01h 2
Write TL Writes low temperature limit value
into TL register. 02h 2
Read TH Reads stored value of high
temperature limit from TH register. A1h 2
Read TL Reads stored value of low
temperature limit from TL register. A2h 2
Write Config Writes configuration data to
configuration register. 0Ch 2
Read Config Reads configuration data from
configuration register. ACh 2
NOTES:
1. In continuous conversion mode, a Stop Convert T command will halt continuous conversion. To
restart, the Start Convert T command must be issued. In one–shot mode, a Start Convert T command
must be issued for every temperature reading desired.
2. Writing to the E
2
typically requires 10 ms at room temperature. After issuing a write command no
further writes should be requested for at least 10 ms.