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0x2f Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ ”h]”(hÌ)”}”(hŒNational Semiconductor LM96080”h]”hŒNational Semiconductor LM96080”…””}”(hjRh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhjNubhÌ)”}”(hŒPrefix: 'lm96080'”h]”hŒPrefix: ‘lm96080’”…””}”(hj`h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhjNubhÌ)”}”(hŒ"Addresses scanned: I2C 0x28 - 0x2f”h]”hŒ"Addresses scanned: I2C 0x28 - 0x2f”…””}”(hjnh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhjNubhÌ)”}”(hŒCDatasheet: Publicly available at the National Semiconductor website”h]”hŒCDatasheet: Publicly available at the National Semiconductor website”…””}”(hj|h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhjNubhÜ)”}”(hŒhttp://www.national.com/ ”h]”hÌ)”}”(hŒhttp://www.national.com/”h]”j-)”}”(hjh]”hŒhttp://www.national.com/”…””}”(hj’h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”juh1j,hjŽubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhjŠubah}”(h]”h ]”h"]”h$]”h&]”uh1hÛh³hÊh´KhjNubeh}”(h]”h ]”h"]”h$]”h&]”uh1hæhhãubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1háh³hÊh´KhhÝubah}”(h]”h ]”h"]”h$]”h&]”uh1hÛh³hÊh´Khh·h²hubhŒdefinition_list”“”)”}”(hhh]”hŒdefinition_list_item”“”)”}”(hŒTAuthors: - Frodo Looijaard , - Philip Edelbrock ”h]”(hŒterm”“”)”}”(hŒAuthors:”h]”hŒAuthors:”…””}”(hjÍh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jËh³hÊh´KhjÇubhŒ definition”“”)”}”(hhh]”hâ)”}”(hhh]”(hç)”}”(hŒ Frodo Looijaard ,”h]”hÌ)”}”(hjåh]”(hŒFrodo Looijaard <”…””}”(hjçh²hh³Nh´Nubj-)”}”(hŒ frodol@dds.nl”h]”hŒ frodol@dds.nl”…””}”(hjîh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:frodol@dds.nl”uh1j,hjçubhŒ>,”…””}”(hjçh²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khjãubah}”(h]”h ]”h"]”h$]”h&]”uh1hæhjàubhç)”}”(hŒ&Philip Edelbrock ”h]”hÌ)”}”(hŒ%Philip Edelbrock ”h]”(hŒPhilip Edelbrock <”…””}”(hjh²hh³Nh´Nubj-)”}”(hŒphil@netroedge.com”h]”hŒphil@netroedge.com”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:phil@netroedge.com”uh1j,hjubhŒ>”…””}”(hjh²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khjubah}”(h]”h ]”h"]”h$]”h&]”uh1hæhjàubeh}”(h]”h ]”h"]”h$]”h&]”j¸Œ-”uh1háh³hÊh´KhjÝubah}”(h]”h ]”h"]”h$]”h&]”uh1jÛhjÇubeh}”(h]”h ]”h"]”h$]”h&]”uh1jÅh³hÊh´KhjÂubah}”(h]”h ]”h"]”h$]”h&]”uh1jÀhh·h²hh³Nh´Nubh¶)”}”(hhh]”(h»)”}”(hŒ Description”h]”hŒ Description”…””}”(hjVh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhjSh²hh³hÊh´K ubhÌ)”}”(hX0This driver implements support for the National Semiconductor LM80. It is described as a 'Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor'. The LM96080 is a more recent incarnation, it is pin and register compatible, with a few additional features not yet supported by the driver.”h]”hX4This driver implements support for the National Semiconductor LM80. It is described as a ‘Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor’. The LM96080 is a more recent incarnation, it is pin and register compatible, with a few additional features not yet supported by the driver.”…””}”(hjdh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K"hjSh²hubhÌ)”}”(hŒˆThe LM80 implements one temperature sensor, two fan rotation speed sensors, seven voltage sensors, alarms, and some miscellaneous stuff.”h]”hŒˆThe LM80 implements one temperature sensor, two fan rotation speed sensors, seven voltage sensors, alarms, and some miscellaneous stuff.”…””}”(hjrh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K(hjSh²hubhÌ)”}”(hX+Temperatures are measured in degrees Celsius. There are two sets of limits which operate independently. When the HOT Temperature Limit is crossed, this will cause an alarm that will be reasserted until the temperature drops below the HOT Hysteresis. The Overtemperature Shutdown (OS) limits should work in the same way (but this must be checked; the datasheet is unclear about this). Measurements are guaranteed between -55 and +125 degrees. The current temperature measurement has a resolution of 0.0625 degrees; the limits have a resolution of 1 degree.”h]”hX+Temperatures are measured in degrees Celsius. There are two sets of limits which operate independently. When the HOT Temperature Limit is crossed, this will cause an alarm that will be reasserted until the temperature drops below the HOT Hysteresis. The Overtemperature Shutdown (OS) limits should work in the same way (but this must be checked; the datasheet is unclear about this). Measurements are guaranteed between -55 and +125 degrees. The current temperature measurement has a resolution of 0.0625 degrees; the limits have a resolution of 1 degree.”…””}”(hj€h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K+hjSh²hubhÌ)”}”(hX™Fan rotation speeds are reported in RPM (rotations per minute). An alarm is triggered if the rotation speed has dropped below a programmable limit. Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give the readings more range or accuracy. Not all RPM values can accurately be represented, so some rounding is done. With a divider of 2, the lowest representable value is around 2600 RPM.”h]”hX™Fan rotation speeds are reported in RPM (rotations per minute). An alarm is triggered if the rotation speed has dropped below a programmable limit. Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give the readings more range or accuracy. Not all RPM values can accurately be represented, so some rounding is done. With a divider of 2, the lowest representable value is around 2600 RPM.”…””}”(hjŽh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K4hjSh²hubhÌ)”}”(hXxVoltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. 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This means that you can easily miss once-only alarms.”h]”hX|If an alarm triggers, it will remain triggered until the hardware register is read at least once. This means that the cause for the alarm may already have disappeared! Note that in the current implementation, all hardware registers are read whenever any data is read (unless it is less than 2.0 seconds since the last update). 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