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PDF IT8720F Data sheet ( Hoja de datos )

Número de pieza IT8720F
Descripción Environment Control - Low Pin Count Input / Output
Fabricantes ITE　
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IT8720F
Environment Control – Low Pin Count Input / Output
(EC - LPC I/O)
Preliminary Specification V0.1
ITE TECH. INC.
This specification is subject to Change without notice. It is provided “AS IS” and for reference only.
For purchasing information, please contact the nearest ITE TECH sales representatives.
Please note that the IT8720F V0.1 is applicable only to the E version and future versions.
Free Datasheet http://www.datasheet4u.com/

1 page




IT8720F pdf
Contents
8.11.10 Watch Dog Timer Time-Out Value (LSB) Register (Index=73h, Default=38h) .................... 62
10H
8.11.11 Watch Dog Timer Time-Out Value (MSB) Register (Index=74h, Default=00h) ................... 62
10H
8.11.12 GPIO Pin Set 1, 2, 3, 4, 5, 6 ,7 and 8 Polarity Registers (Index=B0h, B1h, B2h, B3h and
B4h, Default=00h) ................................................................................................................ 62
102H
8.11.13 GPIO Pin Set 1, 3, 4, 5 and 6 Pin Internal Pull-up Enable Registers (Index=B8h, BAh, BBh,
BCh and BDh, Default=00h)................................................................................................. 63
103H
8.11.14 Simple I/O Set 1, 2, 3, 4 and 5 Enable Registers (Index=C0h, C1h, C2h, C3h and C4h,
Default=01h, 00h, 00h, 40h, 00h and 00h) .......................................................................... 63
104H
8.11.15 Simple I/O Set 1, 2, 3, 4, 5, 6, 7 and 8 Output Enable Registers (Index=C8h, C9h, CAh,
CBh, CCh, CDh, CEh and CFh, Default=01h, 00h, 00h, 40h, 00h and 00h)....................... 63
105H
8.11.16 Panel Button De-bounce 0 Input Pin Mapping Registers (Index=E0h, Default=00h) .......... 63
106H
8.11.17 Panel Button De-bounce 1 Input Pin Mapping Registers (Index=E1h, Default=00h) .......... 63
107H
8.11.18 IRQ External Routing 1-0 Input Pin Mapping Registers (Index=E3h-E2h, Default=00h) .... 64
108H
8.11.19 IRQ External Routing 1-0 Interrupt Level Selection Register (Index=E4h, Default=00h).... 64
109H
8.11.20 VID Watchdog timer 0 Value Register (Index=E5h, Default=00h)....................................... 64
10H
8.11.21 VID Watchdog timer 1 Value Register (Index=E6h, Default=00h)....................................... 64
1H
8.11.22 VID Detecting Value Register (Index=E8h, Default=00h).................................................... 64
12H
8.11.23 Bus Select Control Register (Index=E9h, Default=07h) ...................................................... 64
13H
8.11.24 SMI# Control Register 1 (Index=F0h, Default=00h)............................................................. 65
14H
8.11.25 SMI# Control Register 2 (Index=F1h, Default=00h)............................................................. 65
15H
8.11.26 SMI# Status Register 1 (Index=F2h, Default=00h) .............................................................. 66
16H
8.11.27 SMI# Status Register 2 (Index=F3h, Default=00h) .............................................................. 66
17H
8.11.28 SMI# Pin Mapping Register (Index=F4h, Default=00h) ....................................................... 66
18H
8.11.29 Hardware Monitor Thermal Output Pin Mapping Register (Index=F5h, Default=00h) ........ 66
19H
8.11.30 Hardware Monitor Alert Beep Pin Mapping Register (Index=F6h, Default=00h)................. 66
120H
8.11.31 Keyboard Lock Pin Mapping Register (Index=F7h, Default=00h) ....................................... 67
12H
8.11.32 GP LED Blinking 1 Pin Mapping Register (Index=F8h, Default=00h).................................. 67
12H
8.11.33 GP LED Blinking 1 Control Register (Index=F9h, Default=00h) .......................................... 67
123H
8.11.34 GP LED Blinking 2 Pin Mapping Register (Index=FAh, Default=00h) .................................. 67
124H
8.11.35 GP LED Blinking 2 Control Register (Index=FBh, Default=00h).......................................... 67
125H
8.11.36 VID Input Register (Index=FCh, Default=--h)....................................................................... 68
126H
8.11.37 VID Output/Programed Output Register (Index=FDh, Default=00h) ................................... 68
127H
8.11.38 VID Watchdog Timer Control Register (Index=FEh, Default=00h) ...................................... 68
128H
8.11.39 VID Watchdog timer Control Register (Index=FFh, Default=00h) ....................................... 69
129H
8.12 Consumer IR Configuration Registers (LDN=0Ah)........................................................................... 70
130H
8.12.1 Consumer IR Activate (Index=30h, Default=00h) ................................................................ 70
13H
8.12.2 Consumer IR Base Address MSB Register (Index=60h, Default=03h)................................. 70
132H
8.12.3 Consumer IR Base Address LSB Register (Index=61h, Default=10h).................................. 70
13H
8.12.4 Consumer IR Interrupt Level Select (Index=70h, Default=0Bh) .......................................... 70
134H
8.12.5 Consumer IR Special Configuration Register (Index=F0h, Default=00h)............................ 70
135H
9. Functional Description ................................................................................................................................. 73
136H
9.1 LPC Interface .................................................................................................................................... 73
137H
9.1.1 LPC Transactions................................................................................................................. 73
138H
9.1.2 LDRQ# Encoding ................................................................................................................. 73
139H
9.2 Serialized IRQ ................................................................................................................................... 73
140H
9.2.1 Continuous Mode ................................................................................................................. 73
14H
9.2.2 Quiet Mode ........................................................................................................................... 73
142H
9.2.3 Waveform Samples of SERIRQ Sequence.......................................................................... 74
143H
9.2.4 SERIRQ Sampling Slot ........................................................................................................ 75
14H
9.3 General Purpose I/O ......................................................................................................................... 76
145H
9.4 Advanced Power Supply Control and Power Management Event (PME#) ...................................... 78
146H
9.5 SPI Serial Flash Controller................................................................................................................ 79
147H
www.ite.com.tw
iii IT8720F V0.1
Free Datasheet http://www.datasheet4u.com/

5 Page





IT8720F arduino
Contents
FIGURES
Figure 4-1. IT8720F 128-QFP............................................................................................................................. 7
36H
Figure 7-1. IT8720F Special Applications Circuitry for Intel ICH ...................................................................... 32
37H
Figure 9-1. Start Frame Timing ......................................................................................................................... 74
38H
Figure 9-2. Stop Frame Timing ......................................................................................................................... 74
39H
Figure 9-3. General Logic of GPIO Function .................................................................................................... 77
340H
Figure 9-4. Application Example ..................................................................................................................... 102
341H
Figure 9-5. Temperature Interrupt Response Diagram................................................................................... 105
342H
Figure 9-6. SmartGuardian Automatic Mode .................................................................................................. 106
34H
Figure 9-7. Keyboard and Mouse Interface .................................................................................................... 153
34H
Figure 9-8. CIR Block Diagram ....................................................................................................................... 155
345H
Figure 11-1. Clock Input Timings .................................................................................................................... 169
346H
Figure 11-2. LCLK (PCICLK) and LRESET Timings....................................................................................... 170
347H
Figure 11-3. LPC and SERIRQ Timings ......................................................................................................... 171
348H
Figure 11-4. Serial Port, ASKIR, SIR and Consumer Remote Control Timings ............................................. 172
349H
Figure 11-5. Modem Control Timings ............................................................................................................. 173
350H
Figure 11-6. Floppy Disk Drive Timings.......................................................................................................... 174
351H
Figure 11-7. EPP Address or Data Write Cycle Timings ................................................................................ 175
352H
Figure 11-8. Keyboard/Mouse Receive/Send Data Timing ............................................................................ 176
35H
Figure 11-9. EPP Address or Data Read Cycle Timings ................................................................................ 177
354H
Figure 11-10. ECP Parallel Port Forward Timings.......................................................................................... 178
35H
Figure 11-11. ECP Parallel Port Backward Timings ....................................................................................... 179
356H
Figure 11-12. RSMRST# Timings ................................................................................................................... 180
357H
Figure 11-13. PWROK1/2 Timings.................................................................................................................. 180
358H
Figure 11-14. ACPI Power signals Timings .................................................................................................... 180
359H
www.ite.com.tw
ix IT8720F V0.1
Free Datasheet http://www.datasheet4u.com/

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