JAJSD83C May 2017 – October 2019 TMP464
PRODUCTION DATA.
The THERM2 Status register reports the state of the THERM2 limit comparators for local and remote 1-4 temperatures. Table 6 lists the status register bits. The THERM2 Status register is read-only and is read by accessing pointer address 22h.
THERM2 STATUS REGISTER (READ = 22h, WRITE = N/A) | ||
---|---|---|
BIT NUMBER | BIT NAME | FUNCTION |
15:12 | 0 | Reserved for future use; always reports 0. |
11 | R4TH2 | 1 when Remote 4 exceeds the THERM2 limit |
10 | R3TH2 | 1 when Remote 3 exceeds the THERM2 limit |
9 | R2TH2 | 1 when Remote 2 exceeds the THERM2 limit |
8 | R1TH2 | 1 when Remote 1 exceeds the THERM2 limit |
7 | LTH2 | 1 when Local Sensor exceeds the THERM2 limit |
6:0 | 0 | Reserved for future use; always reports 0. |
The R4TH2:R1TH2 and LTH2 flags are set when the corresponding temperature exceeds the respective programmed THERM2 limit (3Ah, 43h, 4Bh, 53h, 5Bh, 63h, 6Bh, 73h, 7Bh). These flags are reset automatically when the temperature returns below the THERM2 limit minus the value set in the THERM Hysteresis register (38h). The THERM2 output goes low in the case of overtemperature on either the local or remote channels, and goes high as soon as the measurements are less than the THERM2 limit minus the value set in the THERM Hysteresis register. The THERM Hysteresis register (38h) allows hysteresis to be added so that the flag resets and the output goes high when the temperature returns to or goes below the limit value minus the hysteresis value.