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LM95235 Datasheet(PDF) 19 Page - National Semiconductor (TI) |
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LM95235 Datasheet(HTML) 19 Page - National Semiconductor (TI) |
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19 / 25 page  2.0 LM95235 Registers (Continued) 2.4 STATUS REGISTERS Status Register 1 (Read Only Address 02h): D7 D6 D5 D4 D3 D2 D1 D0 Busy 0 0 ROS 0 Diode Fault RTCRIT LOC Bits Name Description 7 Busy When set to "1" the part is converting. 6-5 Reserved Report "0" when read. 4 ROS Status Bit for Remote OS 3 Reserved Reports "0" when read. 2 Diode Fault Status bit for missing diode (Either D+ is shorted to GND, and/or V DD, and/or D-; or D+ is floating.) Note: The unsigned registers will report 0˚C if read; the signed value registers will report −128.000˚C. 1 RTCRIT Status bit for Remote TCRIT. 0 LOC Status bit for the shared Local OS and TCRIT . Status Register 2 (Read Only Address 33h): D7 D6 D5 D4 D3 D2 D1 D0 Not Ready TruTherm 3904 Detect 00000 0 Bits Name Description 7 Not Ready Waiting for 30 ms power-up sequence to end. 6 TruTherm 3904 Detect 1: MMBT3904 is connected and TruTherm technology is enabled. 0: MMBT3904 is connected and TruTherm technology is disabled. 5-0 Reserved Reports "0" when read. 2.5 LIMIT REGISTERS Unsigned Remote OS Limit - 0˚C to 255˚C (Read/Write Address 07h/0Dh or 0Dh/07h): D7 D6 D5 D4 D3 D2 D1 D0 128 64 32 16 8 4 2 1 Power on Reset default is 55h (85˚C). Unsigned Local Shared OS and T_CRIT Limit - 0˚C to 127˚C (Read/Write Address 20h): D7 D6 D5 D4 D3 D2 D1 D0 128 64 32 16 8 4 2 1 Power on Reset default is 55h (85˚C). Unsigned Remote T_CRIT Limit - 0˚C to 255˚C (Read/Write Address 19h): D7 D6 D5 D4 D3 D2 D1 D0 128 64 32 16 8 4 2 1 Power on Reset default is 6Eh (110˚C). www.national.com 19 |
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