Lines Matching +full:fan +full:- +full:speed
6 * Global Mixed-mode Technology Inc. G760A
12 http://www.gmt.com.tw/product/datasheet/EDS-760A.pdf
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19 The GMT G760A Fan Speed PWM Controller is connected directly to a fan
20 and performs closed-loop control of the fan speed.
22 The fan speed is programmed by setting the period via 'pwm1' of two
23 consecutive speed pulses. The period is defined in terms of clock
26 Setting a period of 0 stops the fan; setting the period to 255 sets
27 fan to maximum speed.
29 The measured fan rotation speed returned via 'fan1_input' is derived
30 from the measured speed pulse period by assuming again a 32kHz clock
31 source and a 2 pulse-per-revolution fan.
34 the G760A chip's status register: Bit 0 is set when the actual fan
35 speed differs more than 20% with respect to the programmed fan speed;
36 bit 1 is set when fan speed is below 1920 RPM.