MEC1310 Keyboard and Embedded Controller for Notebook PC Product Features - Two 16-Bit Timer/Counters - Integrated Full-Duplex Serial Port Interface • 3.3V Operation with 5V Tolerant Buffers on PS/2 - Seventy-Three 8051 Interrupt Sources pins - Thirty-Two 8-Bit, Host/8051 Mailbox Regis- • ACPI 1.0/2.0 PC99/PC2001 Compliant ters • LPC Interface with Clock Run Support - Sixty-Four Maskable Hardware Wake-Up - Supports LPC Bus frequencies of 19.2MHz to Events 33MHz - Fast GATEA20 - Serial IRQ Interface Compatible with Serial- - Fast CPU_RESET ized IRQ Support for PCI Systems - Multiple Clock Sources and Operating Fre- - 15 Direct IRQs quencies - ACPI SCI Interface - IDLE and SLEEP Modes - nSMI output and supporting PM registers - Trace FIFO Debug Port - Shadowed write only registers • Accurate Fail-Safe Ring Oscillator • Internal 64K SRAM in MEC1310 - Single Clock source for most 8051 and SIO - Loaded at VCC1 power from the HOST/8051 functions SPI Memory Interface - Provides 2% frequency accuracy - Provides 64KB of 8051 program space - Lock Bit provides status - 32k-Byte region shared with 8051data space - 32.768KHz-input clock • HOST/8051 SPI Memory Interface – Single ended input - 3-pin Full Duplex serial communication inter- – Compatible with south bridge SUSCLK/ face. RSMRST# gating rules - One Chip Select Pins – replacement 32K distribution available when - Fully 8051 Controlled RSMRST# is asserted – Very low power state with only external 32K clock - Hardware Support for two SPI Flash Configu- distributed rations: • Integrated Standby Power Reset Generator – Switched SPI Flash Configuration - VCC1_RST# open drain output – Parallel Shared SPI Flash Configuration – Debug Programming Interface - Accepts External driven Reset • Two Power Planes • VCC0 Backed Resources - Low Standby Current in Sleep Mode - 64 Byte VCC0 Backed Registers • Three ACPI Embedded Controller Interface - VCC0 Backed Status Register • Configuration Register Set Compatible with ISA • Three 8584-Style I2C/SMBus Controllers Plug-and-Play Standard (Version 1.0a) - 8051 Controlled Logic Allows I2C/SMBus • High-Performance Embedded 8051 Keyboard Master or Slave Operation and System Controller - I2C/SMBus Controllers are Fully Operational - Provides System Power Management on Standby Power - System Watch Dog Timer (WDT) - Two Controllers with 2 Sets of Dedicated Pins per I2C/SMBus Controller - 8042 Style Host Interface - One Controller with one Set of Dedicated - Supports Interrupt and Polling Access Pins per I2C/SMBus Controller - 1024 Boot /ROM • Four independent Hardware Driven PS/2 Ports - 256 Bytes Data RAM - GPIO signal function associated with each - On-Chip Memory-Mapped Control Registers pin - Access to VCC0 Backed Registers • PECI Interface 2.0 - Up to 18x8 Keyboard Scan Matrix  2014 Microchip Technology Inc. DS00001768A-page 1

MEC1310 • 56 General Purpose I/O Pins Description - Maskable Hardware Wake-Event Capable The MEC1310 is a 128-pin 3.3V LPC-based ACPI 2.0 - Programmable Open-Drain/Push-Pull Out- and PC99/PC2001 compliant Notebook I/O Controller. puts See FIGURE 1: MEC1310 Block Diagram on page4. • 7 General-Purpose Outputs The MEC1310 incorporates a high-performance 8051- • Four Programmable Pulse-Width Modulator Out- based keyboard and system controller with internal puts embedded 64K SRAM; a 1K byte Boot ROM, and 64- - Independent Clock Rates bytes battery backed registers. The embedded 64K - 6-Bit Duty Cycle Granularity SRAM is loaded via HOST/8051 SPI Memory Inter- - Operational in both Full on and Standby face. The HOST/8051 SPI Memory Interface can be modes configured in Switched SPI Flash Configuration or Par- allel Shared SPI Flash Configuration. • Dual Fan Tachometer Inputs • RPM-Based Fan Speed Control Algorithm The MEC1310 has four PS/2 ports; an 16C550A-com- patible 2 pin UART for Debug Port; three 8584-style - Utilizes one TACH input and one PWM output I2C/SMBus controllers with two selectable ports per - 3% accurate from 500 RPM to 16k RPM controller; a Serial IRQ peripheral agent interface; - Automatic Tachometer feedback three ACPI Embedded Controller Interface; General - Aging Fan or Invalid Drive Detection Purpose I/O pins and seven General Purpose Outputs; - Spin Up Routine four independently programmable pulse width modula- tors; dual fan control through the implementation of two - Ramp Rate Control fan tachometer input pins, RPM-PWM block with one – RPM-based Fan Speed Control Algorithm tachometer input and one PWM output; hardware mon- • Debug Port (UART) itoring of a PWM input and maskable hardware wake- - High-Speed 16550A-Compatible UART with up events; one BC-Link Combined High Speed/Low 16-Byte Send/Receive FIFOs Speed Bus Master Controller; 5 channel Analog to Dig- - Programmable Baud Rate Generator ital Converter. - Relocatable to 480 Different Base I/O The MEC1310 has two separate power planes to pro- Addresses vide “instant on” and system power management func- - 15 IRQ Options tions. Additionally, the MEC1310 incorporates • BC-Link Interconnection Bus sophisticated power control circuitry (PCC). The PCC - Combined High Speed/Low Speed Bus Mas- supports multiple low power down modes. Wake-up ter Controller events and ACPI-related functions are supported through the SCI Interface. • General Purpose Analog to Digital Converter (GP- ADC) The MEC1310 supports the ISA Plug-and-Play Stan- - 10-bit conversion precision dard (Version 1.0a) and provides all the functionality for current Windows O/S’s. The I/O Address and Hard- - 10-bit conversion per channel is completed in ware IRQ of each logical device in the MEC1310 may 10.91us be reprogrammed through the internal configuration - 5 ADC channels registers. There are 480 I/O address location options – 10-bit Conversion with 25.78 mV resolution and 15 IRQs for each logical device. – 0 to 3.3 VDC Conversion Range - Channel 0 has a 5 volt tolerant input - Optional continuous sampling at a program- mable rate - Selectable VREF source on a per Channel Basis – VREF pin or AVCC • 128-Pin VTQFP RoHS Compliant Package DS00001768A-page 2  2014 Microchip Technology Inc.

MEC1310 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for cur- rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: • Microchip’s Worldwide Web site; http://www.microchip.com • Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are using. Customer Notification System Register on our web site at www.microchip.com to receive the most current information on all of our products.  2014 Microchip Technology Inc. DS00001768A-page 3

MEC1310 BLOCK DIAGRAM FIGURE 1: MEC1310 BLOCK DIAGRAM VCC1(5) VCC2(2) VSS(7) PECI_DAT PECI PECI_VREF nRESET_OUT SRYESSTEETM MEC1310 - 128 Pin, 64KB Executable SRAM BC-Link Bus BBCC__CDLAKT Master Controller BC_INT# LAD [3:0] LPC BUS HOST CPU Analog to Digital ADC[0:4] LFRAME# INTERFACE Converter. LRESET# RPM-PWM TACH2PWM_IN POWER TACH2PWM_OUT CONFIGURATION REGISTERS MANAGEMENT Pulse Width PWM[0:4] Modulator Output nEC_SCI nSMI INTERRUPTS Fan Tachometer FAN_TACH[1:2] SER_IRQ CONTROL, ADDRESS, DATA CLKRUN# PCI_CLK GENERAL OUT OUT0, OUT1, OUT7 - OUT11 TXD 16C550A nEC_SCI PINUTREPROFSAEC IE/O I/O GGPPIIOO0[500 –:5 G7]PIO47 COMPATIBLE MAILBOX REGISTERS VRCRSCPXM1WD_RRRSGSTTD## SERPRCIAOeoLsWne tPErt oO&RlR T CEOMNBTAER3CDxOPDIL ELEDR 28560B5 D1irect EX8T0E5RR1E NSGAUILSB TC-BEOLRNOSTCRKOL 88005511TRXX LIKNEETDY1E 8BDR ORxF IAA8VRCEDER nnBFDAKKDTSS__IOL[L0[EE0:7DD:1],,7 nn]PDWMRS__LLEEDD, PM1 RAM KBRST, A20M 32KHZ_INPUT Distr3a2bKu -tion BLOCK 1024B Boot ROM PS/2 PORTS KCLK, EMCLK, IMCLK, PS2CLK KDAT, EMDAT, IMDAT, PS2DAT VCC0 Accurate Execu table ACCESS BUS AB1A_DATA, AB1A_CLK Resources Ring SRAM 1 AB1B_DATA, AB1B_CLK 64 Bytes WDT Oscillator ACCESS BUS AB2A_DATA , AB2A_CLK Reg 2 AB2B_DATA , AB2B_CLK AVGCNCD0 PWRRe_gFAIL D ACCES3S BUS AB3_DATA , AB3_CLK VCC2 Controlled SPI SPI HSTCLK, HSTCS0# Ninotetref:a cTehsis bbelofockre d piaing rmamul tisphleoxwins gin, taenrnda sl hboloucldk not used VCC1 Controlled Interface Switch HSTDATAIN, HSTDATAOUT for pin count. FLCLK, FLCS0# FLDATAIN, FLDATAOUT DS00001768A-page 4  2014 Microchip Technology Inc.

MEC1310 PACKAGE OUTLINE FIGURE 2: MEC1310 128-PIN VTQFP PACKAGE OUTLINE 14X14X1.0 Note: For the most current package drawings, see the Microchip Packaging Specification at http://www.microchip.com/packaging  2014 Microchip Technology Inc. DS00001768A-page 5

MEC1310 APPENDIX A: PRODUCT BRIEF REVISION HISTORY TABLE A-1: REVISION HISTORY Revision Section/Figure/Entry Correction DS00001768A (06-02-14) Document Release DS00001768A-page 6  2014 Microchip Technology Inc.

MEC1310 THE MICROCHIP WEB SITE Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site con- tains the following information: • Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software • General Technical Support – Frequently Asked Questions (FAQ), technical support requests, online discussion groups, Microchip consultant program member listing • Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of semi- nars and events, listings of Microchip sales offices, distributors and factory representatives CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip web site at www.microchip.com. Under “Support”, click on “Customer Change Notifi- cation” and follow the registration instructions. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • Local Sales Office • Field Application Engineer (FAE) • Technical Support Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this docu- ment. Technical support is available through the web site at: http://www.microchip.com/support  2014 Microchip Technology Inc. DS00001768A-page 7

MEC1310 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. [X] - XXX - [X](1) Example: Device Temperature Package Tape and Reel Range Option MEC1310-NU for 128-pin VTQFP RoHS Compliant packaage Device: MEC1310 Temperature Blank = 0°C to +85°C (Extended Commercial) Range: i = -40°C to +85°C (Industrial) Package: NU = 128-pin VTQFP Tape and Reel Blank = Standard packaging (tray) Option: TR = Tape and Reel(1) Note1: Tape and Reel identifier only appears in the catalog part number description. This identifier is used for ordering purposes and is not printed on the device package. Check with your Microchip Sales Office for package availability with the Tape and Reel option. Reel size is 4,000. DS00001768A-page 8  2014 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implic- itly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MTP, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z- Scale are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. flexPWR, JukeBlox, Kleer, KleerNet, MediaLB, and MOST The preceding is a non-exhaustive list of trademarks in use in the US and other countries. For a complete list of trademarks, email a request to legal.department@microchip.com. The absence of a trademark (name, logo, etc.) from the list does not constitute a waiver of any intellectual property rights that SMSC has established in any of its trademarks. All other trademarks mentioned herein are property of their respective companies. © 2014, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 9781632762511 Microchip received ISO/TS-16949:2009 certification for its worldwide QUALITY MANAGEMENT SYSTEM headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California CERTIFIED BY DNV and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and == ISO/TS 16949 == analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.  2014 Microchip Technology Inc. DS00001768A-page 9

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