Lines Matching +full:high +full:- +full:to +full:- +full:low
10 Addresses scanned: I2C 0x2c - 0x2f
20 Addresses scanned: I2C 0x2c - 0x2f
24 http://pdfserv.maxim-ic.com/en/ds/DS1780.pdf
30 Addresses scanned: I2C 0x2c - 0x2f
37 - Frodo Looijaard <frodol@dds.nl>,
38 - Philip Edelbrock <phil@netroedge.com>,
39 - Michiel Rook <michiel@grendelproject.nl>,
40 - Grant Coady <gcoady.lk@gmail.com> with guidance
44 ---------
46 chip MSB 5-bit address. Each chip reports a unique manufacturer
50 -----------
52 microprocessor-based systems, providing measurement and limit comparison
53 of up to four power supplies and two processor core voltages, plus
55 be read out via an I2C-compatible serial System Management Bus, and values
57 high speed successive approximation ADC allows frequent sampling of all
58 analog channels to ensure a fast interrupt response to any out-of-limit
62 details are common to the three chips. Chip differences are described
67 ------------
71 each two seconds. User-space may read sysfs interface faster than the
82 The LM81 12-bit extended temperature measurement mode is not supported.
85 -----------
86 On chip temperature is reported as degrees Celsius as 9-bit signed data
87 with resolution of 0.5 degrees Celsius. High and low temperature limits
88 are 8-bit signed data with resolution of one degree Celsius.
90 Temperature alarm is asserted once the temperature exceeds the high limit,
94 ---------
96 clock via a divider to an 8-bit counter. Fan speed (rpm) is calculated by:
102 * User sets 0 to fan_min limit
104 - low speed alarm is disabled
105 - fan clock divider not changed
106 - auto fan clock adjuster enabled for valid fan speed reading
108 * User sets fan_min limit too low
110 - low speed alarm is enabled
111 - fan clock divider set to max
112 - fan_min set to register value 254 which corresponds
113 to 664 rpm on adm9240
114 - low speed alarm will be asserted if fan speed is
116 - auto fan clock adjuster disabled
120 - low speed alarm is enabled
121 - fan clock divider set to suit fan_min
122 - auto fan clock adjuster enabled: adjusts fan_min
124 * User sets unreasonably high low fan speed limit
126 - resolution of the low speed limit may be reduced
127 - alarm will be asserted
128 - auto fan clock adjuster enabled: adjusts fan_min
135 -------------
136 An analog output provides a 0 to 1.25 volt signal intended for an external
137 fan speed amplifier circuit. The analog output is set to maximum value on
138 power up or reset. This doesn't do much on the test Intel SE440BX-2.
158 The reading is an unsigned 8-bit value, nominal voltage measurement is
163 The driver reports and accepts voltage limits scaled to the above table.
166 -----------
167 The chip has five inputs to read the 5-bit VID and reports the mV value
171 -----------------
172 An alarm is asserted when the CI pin goes active high. The ADM9240
174 this pin. On an Intel SE440BX-2 the Chassis Intrusion header is
175 connected to a normally open switch.
178 a 20 ms active low pulse to reset an external Chassis Intrusion latch.
180 Clear the CI latch by writing value 0 to the sysfs intrusion0_alarm file.
182 Alarm flags reported as 16-bit word
187 0 +2.5 V_Error high or low limit exceeded
188 1 VCCP_Error high or low limit exceeded
189 2 +3.3 V_Error high or low limit exceeded
190 3 +5 V_Error high or low limit exceeded
192 6 FAN1_Error fan low limit exceeded
193 7 FAN2_Error fan low limit exceeded
194 8 +12 V_Error high or low limit exceeded
195 9 VCCP2_Error high or low limit exceeded
196 12 Chassis_Error CI pin went high
199 Remaining bits are reserved and thus undefined. It is important to note
200 that alarm bits may be cleared on read, user-space may latch alarms and
201 provide the end-user with a method to clear alarm memory.