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NCT6776D Datasheet Download - novoTon

Номер произв NCT6776D
Описание LPC I/O
Производители novoTon
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NCT6776D Даташит, Описание, Даташиты
NCT6776F / NCT6776D
Nuvoton LPC I/O
Date: July 12th, 2011 Revision 1.2







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NCT6776D Даташит, Описание, Даташиты
NCT6776F / NCT6776D
Table of Contents –
1. GENERAL DESCRIPTION ......................................................................................................... 1
2. FEATURES ................................................................................................................................. 2
3. BLOCK DIAGRAM ...................................................................................................................... 6
4. PIN LAYOUT............................................................................................................................... 7
5. PIN DESCRIPTION..................................................................................................................... 9
5.1 LPC Interface ........................................................................................................................ 10
5.2 FDC Interface ........................................................................................................................ 10
5.3 Multi-Mode Parallel Port........................................................................................................ 11
5.4 Serial Port Interface .............................................................................................................. 13
5.5 KBC Interface ........................................................................................................................ 14
5.6 CIR Interface ......................................................................................................................... 14
5.7 Hardware Monitor Interface................................................................................................... 15
5.8 VID Input/Output ................................................................................................................... 16
5.9 Intel® PECI Interface ............................................................................................................ 16
5.10 Advanced Configuration & Power Interface .......................................................................... 17
5.11 Advanced Sleep State Control Control ................................................................................. 17
5.12 Port 80 Message Display & LED Control .............................................................................. 18
5.13 SMBus Interface.................................................................................................................... 18
5.14 Hard Disk Message Display & LED Control.......................................................................... 19
5.15 Power Pins ............................................................................................................................ 19
5.16 AMD Power-On Sequence.................................................................................................... 19
5.17 Intel Serial VID ...................................................................................................................... 19
5.18 AMD Serial VID ..................................................................................................................... 20
5.19 AMD SB-TSI Interface........................................................................................................... 20
5.20 Dual Voltage Control ............................................................................................................. 20
5.21 DSW ...................................................................................................................................... 20
5.22 IR........................................................................................................................................... 21
5.23 General Purpose I/O Port...................................................................................................... 21
5.23.1 GPIO-0 Interface...............................................................................................................................21
5.23.2 GPIO-1 Interface...............................................................................................................................22
5.23.3 GPIO-2 Interface...............................................................................................................................23
5.23.4 GPIO-3 Interface...............................................................................................................................23
5.23.5 GPIO-4 Interface...............................................................................................................................24
5.23.6 GPIO-5 Interface...............................................................................................................................25
5.23.7 GPIO-6 Interface...............................................................................................................................26
5.23.8 GPIO-7 Interface...............................................................................................................................26
5.23.9 GPIO-8 Interface...............................................................................................................................27
5.23.10 GPIO-9 Interface...............................................................................................................................28
5.23.11 GPIO-A Interface ..............................................................................................................................28
5.24 Strapping Pins....................................................................................................................... 29
5.25 Internal pull-up, pull-down pins ............................................................................................. 30
6. GLUE LOGIC ............................................................................................................................ 31
6.1 ACPI Glue Logic.................................................................................................................... 31
6.2 BKFD_CUT & LATCH_BKFD_CUT...................................................................................... 34
6.3 3VSBSW# ............................................................................................................................. 35
Publication Release Date: July 12, 2011
-I- version: 1.2







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NCT6776D Даташит, Описание, Даташиты
NCT6776F / NCT6776D
6.4 PSON# Block Diagram.......................................................................................................... 36
6.5 PWROK................................................................................................................................. 37
6.6 Front Panel LEDs.................................................................................................................. 38
6.6.1 Automatic Mode................................................................................................................................38
6.6.2 Manual Mode ....................................................................................................................................39
6.6.3 S0~S5 LED Blink Block Diagram ......................................................................................................39
6.6.4 LED Pole (LED_POL) .......................................................................................................................40
6.6.5 Deeper Sleeping State Detect Function............................................................................................41
6.7 HDD LED............................................................................................................................... 43
6.8 Advanced Sleep State Control (ASSC) Function.................................................................. 44
6.8.1 When ASSC is disabled....................................................................................................................44
6.8.2 When ASSC is enabled (Enter into Deeper Sleeping State).............................................................45
6.8.3 When ASSC is enabled (Exit Deeper Sleeping State) ......................................................................45
6.8.4 SLP_S5#_LATCH Control Function..................................................................................................46
6.9 Intel DSW Function ............................................................................................................... 47
6.9.1 Enter DSW State timing diagram ......................................................................................................47
6.9.2 Exit DSW State timing diagram.........................................................................................................48
6.9.3 Application Circuit .............................................................................................................................48
6.10 AMD Power-On Sequence.................................................................................................... 49
7. CONFIGURATION REGISTER ACCESS PROTOCOL ........................................................... 52
7.1 Configuration Sequence........................................................................................................ 54
7.1.1 Enter the Extended Function Mode ..................................................................................................54
7.1.2 Configure the Configuration Registers..............................................................................................54
7.1.3 Exit the Extended Function Mode .....................................................................................................55
7.1.4 Software Programming Example ......................................................................................................55
8. HARDWARE MONITOR ........................................................................................................... 56
8.1 General Description .............................................................................................................. 56
8.2 Access Interfaces.................................................................................................................. 56
8.3 LPC Interface ........................................................................................................................ 56
8.4 I2C interface........................................................................................................................... 58
8.5 Analog Inputs ........................................................................................................................ 59
8.5.1 Voltages Over 2.048 V or Less Than 0 V .........................................................................................60
8.5.2 Voltage Data Format.........................................................................................................................60
8.5.2.1. Voltage Reading ........................................................................................................................60
8.5.3 Temperature Data Format ................................................................................................................61
8.5.3.1. Monitor Temperature from Thermistor .......................................................................................61
8.5.3.2. Monitor Temperature from Thermal Diode (Voltage Mode) .......................................................61
8.5.3.3. Monitor Temperature from Thermal Diode (Current Mode) .......................................................62
8.5.3.4. Temperature Reading................................................................................................................62
8.6 PECI ...................................................................................................................................... 63
8.7 Fan Speed Measurement and Control.................................................................................. 65
8.7.1 Fan Speed Reading..........................................................................................................................65
8.7.2 Fan Speed Calculation by Fan Count Reading.................................................................................65
8.7.3 Fan Speed Calculation by Fan RPM Reading ..................................................................................65
8.7.4
8.7.5
Fan Speed Control............................................................................................................................65
SMART FANTM Control .....................................................................................................................66
8.7.6 Temperature Source & Reading for Fan Control ..............................................................................67
8.8 SMART FANTM I .................................................................................................................... 68
Publication Release Date: July 12, 2011
-II- version: 1.2










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