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LM86 Datasheet(PDF) 15 Page - National Semiconductor (TI) |
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LM86 Datasheet(HTML) 15 Page - National Semiconductor (TI) |
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15 / 21 page ![]() 2.0 LM86 REGISTERS (Continued) 2.4 CONFIGURATION REGISTER (Read Address 03h /Write Address 09h): D7 D6 D5 D4 D3 D2 D1 D0 ALERT mask RUN/STOP 0 Remote T_CRIT_A mask 0 Local T_CRIT_A mask 0 Fault Queue Power up default is with all bits “0” (zero) D7: ALERT mask: When set to “1” ALERT interrupts are masked. D6: RUN/STOP: When set to “1” SHUTDOWN is enabled. D5: is not defined and defaults to “0”. D4: Remote T_CRIT mask: When set to “1” a diode temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D3: is not defined and defaults to “0”. D2: Local T_CRIT mask: When set to “1” a Local temperature reading that exceeds T_CRIT setpoint will not activate the T_CRIT_A pin. D1: is not defined and defaults to “0”. D0: Fault Queue: when set to “1” three consecutive remote temperature measurements outside the HIGH, LOW, or T_CRIT setpoints will trigger an “Outside Limit” condition resulting in setting of status bits and associated output pins.. 2.5 CONVERSION RATE REGISTER (Read Address 04h /Write Address 0Ah) Value Conversion Rate 00 62.5 mHz 01 125 mHz 02 250 mHz 03 500 mHz 04 1 Hz 05 2 Hz (Read Address 04h /Write Address 0Ah) Value Conversion Rate 06 4 Hz 07 8 Hz 08 16 Hz 09 32 Hz 10-255 Undefined 2.6 LOCAL and REMOTE HIGH SETPOINT REGISTERS (LHS, RHSHB, and RHSLB) (Read Address 05h, 07h /Write Address 0Bh, 0Dh): BIT D7 D6 D5 D4 D3 D2 D1 D0 Value SIGN 64 32 16 8 4 2 1 For LHS and RHSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 70˚C. 1LSB = 1˚C. Two’s complement format. (Read/Write Address 13h): BIT D7 D6 D5 D4 D3 D2 D1 D0 Value 0.5 0.25 0.125 0000 0 For RHSLB: Remote HIGH Setpoint Low Byte temperature data. Power up default is 0˚C. 1LSB = 0.125˚C. Two’s complement format. 2.7 LOCAL and REMOTE LOW SETPOINT REGISTERS (LLS, RLSHB, and RLSLB) (Read Address 06h, 08h, /Write Address 0Ch, 0Eh): BIT D7 D6 D5 D4 D3 D2 D1 D0 Value SIGN 64 32 16 8 4 2 1 For LLS and RLSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 0˚C. 1LSB = 1˚C. Two’s complement format. (Read/Write Address 14h): BIT D7 D6 D5 D4 D3 D2 D1 D0 Value 0.5 0.25 0.125 0000 0 www.national.com 15 |
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