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TMP1075 Datasheet(PDF) 24 Page - Texas Instruments |
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TMP1075 Datasheet(HTML) 24 Page - Texas Instruments |
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24 / 48 page  Note The configuration register supports single-byte read and write over I2C bus to ensure software compatibility with other xx75 standard temperature sensors like TMP75 and LM75. When a single byte write is performed, the data byte on the I2C bus updates the register bits 15-8. Similarly when a single byte read is performed, the data bits 15-8 is transferred over the I2C bus. 9.5.1.3 Low Limit Register (address = 02h) [default reset = 4B00h] The register is configured as a 12-bit, read/write register and data is represented in two's complement format. Figure 9-14 shows the layout for TLOW is the same as the temperature register. The default reset value is 4B00h and corresponds to 75°C. Figure 9-14. Low Limit Register 15 14 13 12 11 10 9 8 L11 L10 L9 L8 L7 L6 L5 L4 R/W-0 R/W-1 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1 R/W-1 7 6 5 4 3 2 1 0 L3 L2 L1 L0 0 0 0 0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 Table 9-9. Low Limit Register Field Description BIT FIELD TYPE RESET DESCRIPTION 15:4 L[11:0] R/W 4B0h 12-bit, read-write register that stores the low limit for comparison with temperature results. 3:0 — R/W 0h Not used 9.5.1.4 High Limit Register (address = 03h) [default reset = 5000h] The register is configured as a 12-bit, read/write register and data is represented in two's complement format. Figure 9-15 show the layout for THIGH is the same as the temperature register. The default reset value is 5000h and corresponds to 80°C. Figure 9-15. High Limit Register 15 14 13 12 11 10 9 8 H11 H10 H9 H8 H7 H6 H5 H4 R/W-0 R/W-1 R/W-0 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 7 6 5 4 3 2 1 0 H3 H2 H1 H0 0 0 0 0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 Table 9-10. High Limit Register Field Description BIT FIELD TYPE RESET DESCRIPTION 15:4 H[11:0] R/W 500h 12-bit, read-write register that stores the high limit for comparison with temperature results. 3:0 — R/W 0h Not used TMP1075 SBOS854E – MARCH 2018 – REVISED AUGUST 2021 www.ti.com 24 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TMP1075 |
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