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SA56004EDP Datasheet(PDF) 11 Page - NXP Semiconductors |
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SA56004EDP Datasheet(HTML) 11 Page - NXP Semiconductors |
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11 / 36 page  SA56004X_5 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 05 — 22 May 2008 11 of 36 NXP Semiconductors SA56004X Digital temperature sensor with overtemperature alarms [1] POR default TH = 0Ah (10 °C). 7.8.7 Programmable offset register (remote only) [1] POR default RTOHB = RTOLB = 00h. [2] POR default RTOLB = 00h. 7.8.8 ALERT mode register (AM) D[7:1] is not defined and defaults to logic 0. D0: The ALERT output is in interrupt mode when this bit is LOW. The ALERT output is in comparator mode when this bit is HIGH. 7.8.9 Other registers The Manufacturers ID register has a default value A1h (1010 0001) and a read address FEh. The Die Revision Code register has a default value 00h (0000 0000) and read address FFh. This register will increment by 1 every time there is a revision to the die. 7.8.10 One-shot register The one-shot register is used to initiate a single conversion and comparison cycle when the device is in the standby mode; upon completion of the single conversion cycle, the device returns to the standby mode. It is not a data register; it is the write operation that causes the one-shot conversion. The data written to this register is not stored; an FFh value will always be read from this register. To initiate a one-shot operation, send a standard write command with the command byte of 0Fh (One-Shot Write Address). Table 13. TH - T_CRIT hysteresis register Byte Single high byte (read/write address 21h)[1] Bit D7 D6 D5 D4 D3 D2 D1 D0 Value - - - 16 8 4 2 1 Table 14. RTOHB, RTOLB - Remote temperature offset registers Byte High byte (read/write address 11h)[1] Low byte (read/write address 12h)[2] Bit D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 Value sign 64 32 16 8421 0.5 0.25 0.125 00000 Table 15. AM - ALERT mode register Read and write address BFh. Bit D7 D6 D5 D4 D3 D2 D1 D0 Value 0 0 0 0 0 0 0 ALERT mode |
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