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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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T1024 датащи(PDF) 31 Page - Freescale Semiconductor, Inc |
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T1024 датащи(HTML) 31 Page - Freescale Semiconductor, Inc |
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31 / 49 page  2.19 Temperature The T1024 processor has a thermal diode attached to the die for direct temperature measurement. The diode pins are connected to a two-channel ADT7461 thermal monitor, which allows direct reading of the temperature of the die and it is accurate to ±1 °C. The second channel of the ADT7461 measures the ambient (board) temperature. The ADT7461 temperature warning and alarm signals are connected to the CPLD for monitoring. The CPLD uses these signals to adjust CPU fan speed and protect the CPU from over-temperature failure. OVER ALARM Thermal Sensor (ADT7461) DXP1 DXN ALERT/THERM2 THERM I2C BUS T1024 THERM ALARM CPLD FAN_Power PWM TEMP_ANODE TEMP_CATHODE Figure 2-20. Temperature 2.20 DIP switch definition The T1024RDB board has user selectable switches, for evaluating different boot configurations and other special configurations for this device. This configuration allows either the switch or the CPLD register to set the POR pin. The CPLD register allows software to override the pin remotely when the board is in the board farm. To use the CPLD override option, software sets an override bit, which allows the CPLD to override the switch setting during power on reset. Chapter 2 Architecture QorIQ T1024 Reference Design Board User Guide, Rev. 0, 04/2015 Freescale Semiconductor, Inc. 31 |
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