DS1626_07 Datasheet, PDF (10/14 Pages) Dallas Semiconductor – High-Precision 3-Wire Digital Thermometer and Thermostat

Figure 5. THERMOSTAT OUTPUT OPERATION
T_L
T_H
LOGIC 1
T_COM
LOGIC 0
LOGIC 1
T_HIGH
LOGIC 0
LOGIC 1
T_LOW
LOGIC 0
TEMP
TEMP
TEMP
DS1626/DS1726
CONFIGURATION REGISTER
The configuration register allows the user to customize the DS1626/DS1726 conversion and
thermostat options. It also provides information to the user about conversion status, EEPROM activity,
and thermostat activity. The configuration register is arranged as shown in Figure 6 and detailed
descriptions of each bit are provided in Table 5. This register can be accessed using the Read Config
and Write Config commands. Note that the R1, R0, CPU, and 1SHOT bits are stored in EEPROM and
all other configuration register bits are SRAM.
Figure 6. CONFIGURATION REGISTER
MSb
bit 6
bit 5
bit 4
bit 3
DONE THF TLF NVB R1*
*NV (EEPROM)
bit 2
bit 1
LSb
R0* CPU* 1SHOT*
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