IT8712F View Datasheet(PDF) - ITE Tech. INC.

Part Name

Description

Manufacturer

IT8712F

Environment Control – Low Pin Count Input / Output(EC - LPC I/O)

ITE Tech. INC. 

Contents

9.5.2.2.35 Thermal Diode Zero Degree Adjust 3 Register (Index=59h,

Default=56h) ..................................................................................................... 83

9.5.2.2.36 Code ID Register (Index=5Bh, Default=12h) ................................... 83

9.5.2.2.37 Beep Event Enable Register (Index=5Ch, Default=00h).................. 83

9.5.2.2.38 Beep Frequency Divisor of Fan Event Register (Index=5Dh,

Default=00h) ..................................................................................................... 83

9.5.2.2.39 Beep Frequency Divisor of Voltage Event Register (Index=5Eh,

Default=00h) ..................................................................................................... 83

9.5.2.2.40 Beep Frequency Divisor of Temperature Event Register (Index=5Fh,

Default=00h) ..................................................................................................... 83

9.5.2.2.41 FAN_CTL3-1 SmartGuardian Automatic Mode Temperature Limit of

OFF Registers (Index=70h, 68h, 60h, Default=7Fh) ............................................. 83

9.5.2.2.42 FAN_CTL3-1 SmartGuardian Automatic Mode Temperature Limit of

Fan Start Registers (Index=71h, 69h, 61h, Default=7Fh) ...................................... 84

9.5.2.2.43 FAN_CTL3-1 SmartGuardian Automatic Mode Temperature Limit of

Full Speed Registers (Index=72h, 6Ah, 62h, Default=7Fh) ................................... 84

9.5.2.2.44 FAN_CTL3-1 SmartGuardian Automatic Mode Start PWM Registers

(Index=73h, 6Bh, 63h, Default=00h)...................................................................... 84

9.5.2.2.45 FAN_CTL3-1 SmartGuardian Automatic Mode Control Registers

(Index=74h, 6Ch, 64h, Default=00h)...................................................................... 84

9.5.2.2.46 FAN_CTL3-1 SmartGuardian Automatic Mode Temperature Limit of

Full-Speed-OFF Registers (Index=75h, 6Dh, 65h, Default=7Fh) .......................... 85

9.5.2.2.47 Fan Tachometer 4-5 Reading LSB Registers (Index=80h,82h)....... 85

9.5.2.2.48 Fan Tachometer 4-5 Reading MSB Registers (Index=81h,83h)...... 85

9.5.2.2.49 Fan Tachometer 4-5 Limit LSB Registers (Index=84h,86h)............. 85

9.5.2.2.50 Fan Tachometer 4-5 Limit MSB Registers (Index=85h,87h)............ 85

9.5.2.2.51 FAN_CTL4 PWM Control Register (Index=88h, Default=00h) ........ 85

9.5.2.2.52 FAN_CTL5 PWM Control Register (Index=89h, Default=00h) ........ 85

9.5.2.2.53 FAN_CTL5-4 SmartGuardian Automatic Mode Temperature Limit of

OFF Registers (Index=98h, 90h, Default=7Fh) ..................................................... 86

9.5.2.2.54 FAN_CTL5-4 SmartGuardian Automatic Mode Temperature Limit of

Fan Start Registers (Index=99h, 91h, Default=7Fh) .............................................. 86

9.5.2.2.55 FAN_CTL5-4 SmartGuardian Automatic Mode Temperature Limit of

Full Speed Registers (Index=9Ah, 92h, Default=7Fh) ........................................... 86

9.5.2.2.56 FAN_CTL5-4 SmartGuardian Automatic Mode Start PWM Registers

(Index=9Bh, 93h, Default=00h).............................................................................. 86

9.5.2.2.57 FAN_CTL5-4 SmartGuardian Automatic Mode Control Registers

(Index=9Ch, 94h, Default=00h).............................................................................. 86

9.5.2.2.58 FAN_CTL5-4 SmartGuardian Automatic Mode Temperature Limit of

Full-Speed-OFF Registers (Index=9Dh, 95h, Default=7Fh) .................................. 87

9.5.3 Operation.............................................................................................................................. 87

9.5.3.1 Power On RESET and Software RESET................................................................. 87

9.5.3.2 Starting Conversion ................................................................................................. 87

9.5.3.3 Voltage and Temperature Inputs ............................................................................. 88

9.5.3.4 Layout and Grounding ............................................................................................. 89

9.5.3.5 Fan Tachometer ...................................................................................................... 89

9.5.3.6 Interrupt of the EC ................................................................................................... 89

9.5.3.7 FAN Controller FAN_CTL’s ON-OFF and SmartGuardian Modes .......................... 91

9.6 Floppy Disk Controller (FDC) ............................................................................................................ 92

9.6.1 Introduction........................................................................................................................... 92

9.6.2 Reset .................................................................................................................................... 92

9.6.3 Hardware Reset (LRESET# Pin) .......................................................................................... 92

9.6.4 Software Reset (DOR Reset and DSR Reset) ..................................................................... 92

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IT8712F V0.81

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