IT8702F Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

IT8702F

Super – Low Pin Count Input / Output (LPC I/O)

Unspecified 

IT8702F

9.2.1 Continuous Mode ................................................................................................................. 65

9.2.2 Quiet Mode ........................................................................................................................... 66

9.2.3 Waveform Samples of SERIRQ Sequence.......................................................................... 66

9.2.4 SERIRQ Sampling Slot ........................................................................................................ 67

9.3 General Purpose I/O ......................................................................................................................... 68

9.4 Advanced Power Supply Control and Power Management Event (PME#) ...................................... 70

9.5 FAN Controller .................................................................................................................................. 71

9.5.1 Interfaces.............................................................................................................................. 71

9.5.2 Registers .............................................................................................................................. 71

9.5.2.1 Address Port (Base+05h, Default=00h): ................................................................. 71

9.5.2.2 Register Description ................................................................................................ 73

9.5.2.2.1 Configuration Register (Index=00h, Default=18h) ........................... 73

9.5.2.2.2 Interrupt Status Register 1 (Index=01h, Default=00h)..................... 73

9.5.2.2.3 Reserved Register (Index=02h, Default=00h) ................................. 73

9.5.2.2.4 Reserved Register (Index=03h, Default=00h) ................................. 73

9.5.2.2.5 SMI# Mask Register 1 (Index=04h, Default=00h) ........................... 74

9.5.2.2.6 Reserved Register (Index=05h, Default=00h) ................................. 74

9.5.2.2.7 Reserved Register (Index=06h, Default=00h) ................................. 74

9.5.2.2.8 Interrupt Mask Register 1 (Index=07h, Default=00h) ...................... 74

9.5.2.2.9 Reserved Register (Index=08h, Default=00h) ................................. 74

9.5.2.2.10 Reserved Register (Index=09h, Default=00h) ................................. 74

9.5.2.2.11 VID Register (Index=0Ah) ................................................................ 74

9.5.2.2.12 Fan Tachometer Divisor Register (Index=0Bh, Default=09h).......... 74

9.5.2.2.13 Fan Tachometer 16-bit Counter Enable Register (Index=0Ch,

Default=00h) ..................................................................................................... 74

9.5.2.2.14 Fan Tachometer 1-3 Reading Registers (Index=0Dh-0Fh) ............. 75

9.5.2.2.15 Fan Tachometer 1-3 Limit Registers (Index=10h-12h).................... 75

9.5.2.2.16 Fan Controller Main Control Register (Index=13h, Default=00h) .... 75

9.5.2.2.17 FAN_CTL Control Register (Index=14h, Default=50h).................... 75

9.5.2.2.18 FAN_CTL1 PWM Control Register (Index=15h, Default=00h or 40h).

..................................................................................................... 76

9.5.2.2.19 FAN_CTL2 PWM Control Register (Index=16h, Default=00h or 40h).

..................................................................................................... 76

9.5.2.2.20 FAN_CTL3 PWM Control Register (Index=17h, Default=00h or 40h).

..................................................................................................... 76

9.5.2.2.21 Fan Tachometer 1-3 Extended Reading Registers (Index=18h-1Ah) .

..................................................................................................... 76

9.5.2.2.22 Fan Tachometer 1-3 Extended Limit Registers (Index=1Bh-1Dh) .. 76

9.5.2.2.23 Vendor ID Register (Index=58h, Default=90h) ................................ 77

9.5.2.2.24 Code ID Register (Index=5Bh, Default=12h) ................................... 77

9.5.2.2.25 Beep Event Enable Register (Index=5Ch, Default=00h) ................. 77

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

Default=00h) ..................................................................................................... 77

9.5.2.2.27 Fan Tachometer 4-5 Reading LSB Registers (Index=80h,82h) ...... 77

9.5.2.2.28 Fan Tachometer 4-5 Reading MSB Registers (Index=81h,83h) ..... 77

9.5.2.2.29 Fan Tachometer 4-5 Limit LSB Registers (Index=84h,86h) ............ 77

9.5.2.2.30 Fan Tachometer 4-5 Limit MSB Registers (Index=85h,87h) ........... 77

9.5.2.2.31 FAN_CTL4 PWM Control Register (Index=88h, Default=00h) ........ 77

9.5.2.2.32 FAN_CTL5 PWM Control Register (Index=89h, Default=00h) ........ 78

9.5.3 Operation.............................................................................................................................. 78

9.5.3.1 Power On RESET and Software RESET ................................................................ 78

9.5.3.2 Fan Tachometer ...................................................................................................... 78

www.ite.com.tw

iv

IT8702F V0.5

Share Link: