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ADT7473 Datasheet(PDF) 62 Page - Analog Devices |
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ADT7473 Datasheet(HTML) 62 Page - Analog Devices |
62 / 76 page ADT7473 Rev. A | Page 62 of 76 0x00)1 N R/W Descrip Table 23. Register 0x36—Dynamic TMIN Control Register 1 (Power-On Default = Bit ame tion [0] C R MSB of (Reg. 0x he control loop, in terms to YR2 /W 3-bit remote 2 cycle value. The other two bits of the code reside in Dynamic TMIN Control Register 2 37). These three bits define the delay time between making subsequent TMIN adjustments in t of the number of monitoring cycles. The system has associated thermal time constants that need to be found optimize the response of fans and the control loop. [1] VCCPLO R/W VCCPLO = mit value (R s • SMBAL 1. When the power is supplied from 3.3 V STANDBY and the core voltage (VCCP) drops below its VCCP low li egister 0x46), the following occurs: • Statu Bit 1 in Interrupt Status Register 1 is set. ERT is generated, if enabled. • PROCHOT monitoring is disabled. ic T control is disabled. • Dynam • The de • Everyt CCP MIN vice is prevented from entering shutdown. hing is re-enabled once VCCP increases above the V low limit. [2] P R PHTR1 = HTR1 /W 1 copies the Remote 1 current temperature to the Remote 1 operating point register if THERM is asserted. rating point contains the temperature at which THERM The ope is asserted, allowing the system to run as quietly as possible PHTR1 = without affecting system performance. 0 ignores any THERM assertions on the THERM pin. The Remote 1 operating point register reflects its programmed value. [3] PHTL R/W PHTL = 1 copies the local channel’s current temperature to the local operating point register if THERM is asserted. The operating point contains the temperature at which THERM is ass possible ecting system performance. erted. This allows the system to run as quietly as without aff PHTL = 0 ignores any THERM assertions on the THERM pin. The local temperature operating point register reflec mmed value. ts its gra pro [4] PHTR2 R2 R/W PHT = 1 copies the Remote 2 current temperature to the Remote 2 operating point register if THERM is asserted. erating point contains the temperature at which The op THERM is asserted, allowing the system to run as quietly as poss PH ible TR2 without affecting system performance. = 0 ignores any THERM assertions on the THERM pin. The Remote 2 operating point register reflects its programmed value. [5] R1T R/W R1T = MIN = in an Speed C 1 enables dynamic TMIN control on the Remote 1 temperature channel. The chosen T value is dynamically adjusted based on the cur R1T rent temperature, operating point, and high and low limits for this zone. 0 disables dynamic TMIN control. The TMIN value chosen is not adjusted, and the channel behaves as described the F ontrol section. [6] LT R/W LT=1 e based LT = 0 ibed in the Fan Speed Control section. nables dynamic TMIN control on the local temperature channel. The chosen TMIN value is dynamically adjusted on the current temperature, operating point, and high and low limits for this zone. disables dynamic TMIN control. The TMIN value chosen is not adjusted, and the channel behaves as descr [7] R2T R/W R2T = 1 enables dynamic TMIN control on the Remote 2 temperat adjusted based on the current temperature, operating point, an ure channel. The chosen TMIN value is dynamically d high and low limits for this zone. an R2T = 0 d the F isables dynamic TMIN control. The TMIN value chosen is not adjusted and the channel behaves as described in Speed Control section. s re co w 1 Thi gister be mes read-only hen the Configuration Register 1 lock bit is set to 1. Any subsequent attempts to write to this register fail. |
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