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TMP1827 Datasheet(PDF) 49 Page - Texas Instruments |
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TMP1827 Datasheet(HTML) 49 Page - Texas Instruments |
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49 / 65 page  9.6.9 Temperature Alert High LSB Register (Scratchpad-1 offset = 0Ah) [reset = F0h] This register provides the LSB for the high temperature alert threshold to compare with the latest temperature conversion result. The register on the first power up has the alert threshold set in legacy format. If there is a change of format, then the application must update the register in the new format. If the latest temperature conversion result is more than the threshold set, then the device shall update the alert high status flag in the status register, respond with the status bit flagged for an alert during the ALERTSEARCH command, and set the alert pin low if the device is in VDD powered mode. The factory state format for the register is legacy mode. The host can store the updated setting to the configuration EEPROM using the COPY SCRATCHPAD-1 function command. At power-on reset, the register setting is automatically restored from the configuration EEPROM. Return to Register Map. Figure 9-32. Temperature Alert High LSB Register 7 6 5 4 3 2 1 0 ALERT_HIGH[7:0] RW-F0h Table 9-23. Temperature Alert High LSB Register Field Descriptions Bit Field Type Reset Description 7:0 ALERT_HIGH[7:0] RW F0h Stores the LSB of the alert high limit for comparison with the last temperature conversion result 9.6.10 Temperature Alert High MSB Register (Scratchpad-1 offset = 0Bh) [reset = 07h] This register provides the MSB for the high temperature alert threshold to compare with the latest temperature conversion result. The register on the first power up has the alert threshold set in legacy format. If there is a change of format, then the application must update the register in the new format. If the latest temperature conversion result is more than the threshold set, then the device shall update the alert high status flag in the status register, respond with the status bit flagged for an alert during the ALERTSEARCH command, and set the alert pin low if the device is in VDD powered mode. The factory state format for the register is legacy mode. The host can store the updated setting to the configuration EEPROM using the COPY SCRATCHPAD-1 function command. At power-on reset, the register setting is automatically restored from the configuration EEPROM. Return to Register Map. Figure 9-33. Temperature Alert High MSB Register 7 6 5 4 3 2 1 0 ALERT_HIGH[15:8] RW-07h Table 9-24. Temperature Alert High MSB Register Field Description Bit Field Type Reset Description 7:0 ALERT_HIGH[15:8] RW 07h Stores the MSB of the alert high limit for comparison with the last temperature conversion result www.ti.com TMP1827 SBOSA15A – SEPTEMBER 2022 – REVISED MAY 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 49 Product Folder Links: TMP1827 |
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