MA180022

PICDEM™ LCD 2 Demonstration Kit User’s Guide  2010 Microchip Technology Inc. DS51662C 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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC 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, MXDEV, MXLAB, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA 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. All other trademarks mentioned herein are property of their respective companies. © 2010, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 978-1-60932-686-9 Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California 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 analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. DS51662C-page 2  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Table of Contents Preface ........................................................................................................................... 5 Chapter 1. Introduction 1.1 Welcome ...................................................................................................... 11 1.2 PICDEM LCD 2 Demonstration Board Hardware Features ......................... 12 1.3 Sample Devices ........................................................................................... 13 1.4 Sample Programs ......................................................................................... 13 Chapter 2. Getting Started 2.1 PICDEM LCD 2 as a Stand-Alone Board – Preprogrammed Device ........... 15 2.2 PICDEM LCD 2 Used with an In-Circuit Emulator or In-Circuit Debugger ... 16 Chapter 3. Using the Demo Software 3.1 Demo Firmware Operation ........................................................................... 17 Appendix A. Board Technical Information A.1 Processors ................................................................................................... 25 A.2 LCD Display ................................................................................................. 26 A.3 LED Display ................................................................................................. 46 A.4 Charge Pump and VLCAP ........................................................................... 46 A.5 Resistive Ladder Versus Charge Pump ....................................................... 46 A.6 Oscillator Options ......................................................................................... 47 A.7 RS-232 Serial Port ....................................................................................... 47 A.8 Real-Time Clock .......................................................................................... 47 A.9 Serial EEPROM ........................................................................................... 47 A.10 Analog Input ............................................................................................... 47 A.11 Temperature Sensor .................................................................................. 48 A.12 Switches ..................................................................................................... 48 A.13 ICD Connector ........................................................................................... 48 A.14 Power Supply ............................................................................................. 49 A.15 Board Layout and Schematics ................................................................... 52 A.16 PIM Layout and Schematics ...................................................................... 56 Worldwide Sales and Service .................................................................................... 66  2010 Microchip Technology Inc. DS51662C-page 3 PICDEM™ LCD 2 Demonstration Kit User’s Guide NOTES: DS51662C-page 4  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Preface NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document. For the most up-to-date information on development tools, see the MPLAB® IDE on-line help. Select the Help menu, and then Topics to open a list of available online help files. The VL logo is a registered logo of Varitronix Limited. The illustrations on pages 26, 27, 31, 36, 39 and 45 are copyrighted materials of Varitronix and VL Electronics. Reprinted with permission. INTRODUCTION This chapter contains general information that will be useful to know before using the PICDEM™ LCD 2 Demonstration Board. Items discussed in this chapter include: • • • • • • • • Document Layout Conventions Used in this Guide Warranty Registration Recommended Reading The Microchip Web Site Development Systems Customer Change Notification Service Customer Support Document Revision History DOCUMENT LAYOUT This document describes how to use the PICDEM LCD 2 as a development tool to emulate and debug firmware on a target board. The manual layout is as follows: • Chapter 1. “Introduction” – Describes the hardware of the PICDEM LCD 2 Demonstration Board. • Chapter 2. “Getting Started” – Describes how to use the PICDEM LCD 2 Demonstration Board. • Chapter 3. “Using the Demo Software” – Describes how to use the application in Demo mode and also how it can be customized. • Appendix A. “Board Technical Information” – Shows the schematic and layout diagrams for the PICDEM LCD 2 Demonstration Board.  2010 Microchip Technology Inc. DS51662C-page 5 PICDEM™ LCD 2 Demonstration Kit User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Arial font: Italic characters Initial caps Quotes Underlined, italic text with right angle bracket Bold characters N‘Rnnnn Text in angle brackets < > Courier New font: Plain Courier New Represents Referenced books Emphasized text A window A dialog A menu selection A field name in a window or dialog A menu path MPLAB® IDE User’s Guide ...is the only compiler... the Output window the Settings dialog select Enable Programmer “Save project before build” A dialog button A tab A number in verilog format, where N is the total number of digits, R is the radix and n is a digit. A key on the keyboard Click OK Click the Power tab 4‘b0010, 2‘hF1 Italic Courier New Sample source code Filenames File paths Keywords Command-line options Bit values Constants A variable argument Square brackets [ ] Optional arguments Curly brackets and pipe character: { | } Ellipses... Choice of mutually exclusive arguments; an OR selection Replaces repeated text Represents code supplied by user DS51662C-page 6 Examples File>Save Press , #define START autoexec.bat c:\mcc18\h _asm, _endasm, static -Opa+, -Opa0, 1 0xFF, ‘A’ file.o, where file can be any valid filename mcc18 [options] file [options] errorlevel {0|1} var_name [, var_name...] void main (void) { ... }  2010 Microchip Technology Inc. Preface WARRANTY REGISTRATION Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in the Warranty Registration Card entitles users to receive new product updates. Interim software releases are available at the Microchip web site. RECOMMENDED READING For the latest information on using other tools, read the tool-specific Readme files in the Readmes subdirectory of the MPLAB® IDE installation directory. The Readme files contain update information and known issues that may not be included in this user’s guide. The following documents are comprehensive references for Microchip’s enhanced microcontrollers with LCD driver: “PIC18F85J90 Family Data Sheet” (DS39770) “PIC18F87J90 Family Data Sheet” (DS39933) “PIC18F6390/6490/8390/8490 Data Sheet” (DS39629) “PIC16C9XX Data Sheet” (DS30444) “PIC16C925/926 Data Sheet” (DS39544) “PIC16F917/916/914/913 Data Sheet” (DS41250) "PIC16F/LF1946/47 Data Sheet" (DS41414)  2010 Microchip Technology Inc. DS51662C-page 7 PICDEM™ LCD 2 Demonstration Kit User’s Guide THE MICROCHIP WEB SITE Microchip provides online support via our web 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 contains 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 (FAQs), 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 seminars and events, listings of Microchip sales offices, distributors and factory representatives DEVELOPMENT SYSTEMS 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, click on Customer Change Notification and follow the registration instructions. The Development Systems product group categories are: • Compilers – The latest information on Microchip C compilers and other language tools. These include the MPLAB C18 and MPLAB C30 C compilers; MPASM™ and MPLAB ASM30 assemblers; MPLINK™ and MPLAB LINK30 object linkers; and MPLIB™ and MPLAB LIB30 object librarians. • Emulators – The latest information on Microchip in-circuit emulators.This includes the MPLAB ICE 2000 and MPLAB ICE 4000. • In-Circuit Debuggers – The latest information on the Microchip in-circuit debugger, MPLAB ICD 2. • MPLAB® IDE – The latest information on Microchip MPLAB IDE, the Windows® Integrated Development Environment for development systems tools. This list is focused on the MPLAB IDE, MPLAB SIM simulator, MPLAB IDE Project Manager and general editing and debugging features. • Programmers – The latest information on Microchip programmers. These include the MPLAB PM3 and PRO MATE® II device programmers and the PICSTART® Plus and PICkit™ 1 development programmers. DS51662C-page 8  2010 Microchip Technology Inc. Preface 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 document. Technical support is available through the web site at: http://support.microchip.com DOCUMENT REVISION HISTORY Revision C (November 2010) • Added device information for the PIC16F/LF1946/7.  2010 Microchip Technology Inc. DS51662C-page 9 PICDEM™ LCD 2 Demonstration Kit User’s Guide NOTES: DS51662C-page 10  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Chapter 1. Introduction 1.1 WELCOME Thank you for purchasing the PICDEM LCD 2 Demonstration Kit from Microchip Technology Incorporated. The PICDEM LCD 2 demonstrates the capabilities of the PIC18FXXJ90, PIC18FXX90, PIC16X9XX, and PIC16X19XX families of devices. The PICDEM LCD 2 can be used stand-alone with a preprogrammed part, with an in-circuit emulator (e.g., MPLAB® ICE) or with an in-circuit debugger (e.g., MPLAB ICD 2). Sample programs are provided to demonstrate the unique features of the supported devices. The PICDEM LCD 2 Demonstration Kit comes with the following: 1. PICDEM LCD 2 Demonstration Board (Figure 1-1) 2. Sample Plug-in Module (PIM) 3. CD-ROM which contains: • Sample Programs • “PICDEM™ LCD 2 Demonstration Kit User’s Guide” If you are missing any part of the kit, please contact your nearest Microchip sales office listed in the back of this publication for help.  2010 Microchip Technology Inc. DS51662C-page 11 PICDEM™ LCD 2 Demonstration Kit User’s Guide 1.2 PICDEM LCD 2 DEMONSTRATION BOARD HARDWARE FEATURES The PICDEM LCD 2 Demonstration Board has the following hardware features; each feature’s number corresponding to the number in Figure 1-1: 1. The demonstration board provides a daughter board option for the PIC18F85J90, PIC18F87J90, PIC18F8490, PIC16F914/917, PIC16F946, and PIC16F/LF1946/47 families of devices and MPLAB ICE. The board is also supplied with a PIM populated with a PIC18F85J90 device. Note: Optional PIMs populated with PIC18FXX90, PIC18FXX90, PIC16F9XX, and PIC16X19XX devices are available for purchase from Microchip Direct (www.microchipdirect.com). The MPLAB ICE can be plugged onto the board without any transition socket for PIC18FXX90 devices. For other devices, a transition socket may be needed. 2. On-board adjustable voltage regulator for direct input from 9V, 100 mA AC/DC wall adapter or 3V button cell battery. 3. Jumper J15 to select different power options. 4. Green power-on indicator LED for direct input from 9V. 5. Varitronix custom segmented LCD display. 6. Jumpers, COM0, COM1, COM2 and COM3, to disconnect COM pins from on-board LCD and allow the usage of any customized LCD glass. 7. RS-232 connection and associated hardware for direct connection to RS-232 interface. 8. Jumpers, JP13 and JP14, to disconnect TX and RX. 9. In-Circuit Debugger (ICD) connector. 10. R44, 10 k, potentiometer for devices with analog inputs. 11. Five push button switches (S1 through S5) for external stimulus and Reset. 12. Jumpers, JP19, JP18, JP1 and JP2, to disconnect switches from RB6, RB7, RA6 and RA7 input pins. 13. Jumper, J11, to select either 10 k (POT R44) or the S1-S4 switches to AN0 (RA0). 14. Two green LEDs connected to RC3 and RC4 (device dependent). 15. Jumpers in J14 to disconnect LEDs from RC3 and RC4. 16. A slide switch (S6) to select either the resistor ladder or the charge pump option for generating the bias values for the LCD pins. 17. Jumper, JP21, to physically tie the resistor ladder to ground. 18. Unpopulated holes provided for crystal connection. 19. Jumpers, JP11 and JP12, to disconnect crystal from OSC1 and OSC2. 20. 32.768 kHz crystal with Timer1 for Real-Time Clock (RTC) operation. 21. A Microwire EEPROM 93AA46C provided on a socket. 22. Jumpers, JP15 and JP16, to disconnect EEPROM from CK and DT. Jumper, J6, to connect CS to GND or to RC4 (device dependent). Jumper, J13, to select either 128 x 8 or 64 x 16 memory organization. 23. Thermistor for sensing temperature. 24. Jumper, JP5, to connect thermistor to AN1 (RA1) (device dependent). 25. Jumper, JP17, to select either VCC or I/O to power the peripherals. 26. Unpopulated option for TC77 temperature sensor. 27. Prototype area for user hardware. 28. PICtail™ daughter board connection. (The pin names on the board are valid only for the PIC18F8490 device. For other devices, the PICtail daughter board pin connections may be different or not connected.) DS51662C-page 12  2010 Microchip Technology Inc. Introduction FIGURE 1-1: PICDEM™ LCD 2 HARDWARE 4 8 22 3 21 18 13 19 25 20 23 26 2 7 28 15 1 24 14 9 12 2 27 11 1.3 10 16 17 6 5 SAMPLE DEVICES A PIM, populated with the PIC18F85J90, is included. 1.4 SAMPLE PROGRAMS The PICDEM LCD 2 Demonstration Kit includes a CD-ROM with sample demonstration programs. Depending on the device, these programs may be used with some of the included sample devices with an In-Circuit Emulator (ICE) or with an In-Circuit Debugger (ICD). For each type of device (PIC16F946, PIC16F917, PIC18F8490, PIC18F85J90, PIC18F87J90 and PIC16F/LF1946/47), demo source code, several C and/or .asm files and compiled code (one HEX file) are provided.  2010 Microchip Technology Inc. DS51662C-page 13 PICDEM™ LCD 2 Demonstration Kit User’s Guide NOTES: DS51662C-page 14  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Chapter 2. Getting Started The PICDEM LCD 2 may be used as a stand-alone board with a preprogrammed device, with an In-Circuit Emulator (ICE) or with an In-Circuit Debugger (ICD). For a list of PIC® microcontroller compatible ICEs or ICDs, please refer to the “Microchip Development Systems Ordering Guide” (DS30177). 2.1 PICDEM LCD 2 AS A STAND-ALONE BOARD – PREPROGRAMMED DEVICE The PICDEM LCD 2 may be demonstrated immediately by following the steps listed below: • Apply power to the PICDEM LCD 2. For information on acceptable power sources, see Appendix A. “Board Technical Information”. Note: In the event that the preprogrammed PICDEM LCD 2 Demonstration Board with the PIC18F85J90 PIM does not operate, check the following conditions: - The jumper, J15, is configured as per the power supply used. The slide switch, S6, is switched to C. - JP1, JP2, JP6, JP18 and JP19 are connected. - The middle two jumpers of J14 are connected. - JP9 and JP10 are connected. - J11 connecting POT to AN0 and JP17 connecting VCC to I/O. The status of all other jumpers will not affect the preprogrammed demonstration. Refer to Figure A-1 in Appendix A. “Board Technical Information”. To reprogram the sample device, the following will be necessary: 1. User source code may be programmed to the device or the sample program may be restored from the file on the included CD-ROM. 2. An assembler, such as the MPASM™ Assembler (available with MPLAB IDE), or a compiler, such as MPLAB C18 C Compiler (PIC18XXXX/18XXJXX devices only) must be used. Source code must be assembled or compiled into a HEX file before it can be programmed into the device. Microchip Technology’s MPASM Assembler or MPLAB C18 C Compiler may be used. Both are compatible with MPLAB IDE; however, other assemblers/compilers may be used. 3. Once the sample program is in the HEX file format, it can be programmed to a Flash device using an MPLAB ICD 2 or PM3 with an ICSP™ module. Microchip Technology’s MPLAB ICD 2 is compatible with MPLAB IDE. If the code protection bit(s) have not been programmed, the on-chip program memory can be read out for verification purposes.  2010 Microchip Technology Inc. DS51662C-page 15 PICDEM™ LCD 2 Demonstration Kit User’s Guide 2.2 PICDEM LCD 2 USED WITH AN IN-CIRCUIT EMULATOR OR IN-CIRCUIT DEBUGGER To use the PICDEM LCD 2 with an In-Circuit Emulator (ICE) or In-Circuit Debugger (ICD), refer to the tool’s user’s guide for instructions on how to power-up and configure the ICE/ICD, as well as how to connect to target boards. Configure the PICDEM LCD 2 for the desired oscillator as described in Table 2-1. Refer to the ICE/ICD user’s guide for any oscillator configuration requirements. TABLE 2-1: OSCILLATOR SELECTION Oscillator Selection on PICDEM™ LCD 2 Crystal JP9 and JP10 not connected. No canned oscillator on board, crystal in Y2, JP11 and JP12 connected, caps in C16 and C17. Canned Oscillator Put canned oscillator on socket Y3. Y2 empty, JP9, JP11 and JP12 not connected. Device Internal Oscillator JP11 and JP12 not connected. No canned oscillator on board. Ceramic Resonator – no internal caps JP9 and JP10 not connected. No canned oscillator on board, resonator in Y2, JP11 and JP12 connected, caps in C16 and C17. Ceramic Resonator – with internal caps JP9 and JP10 not connected. No canned oscillator on board, resonator in Y2, JP11 and JP12 connected, C16 and C17 empty. Note: DS51662C-page 16 Modification on PICDEM™ LCD 2 The MPLAB ICE can be plugged onto the board without any transition socket for PIC18FXX90 devices. For other devices, a transition socket may be needed.  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Chapter 3. Using the Demo Software The demo programs are preprogrammed into the sample devices. Also, this program is included on the CD-ROM program disk for user reference. This demo program uses the functions or macros provided by the firmware LCD driver module to display the required characters, strings or icons on the LCD. 3.1 DEMO FIRMWARE OPERATION The demo firmware is made up of four components, which are individually displayed on the LCD. The PIC microcontroller’s internal RC oscillator is used as the system clock source. 1. Voltmeter (F1) This mode uses the A/D module to measure the voltage of the R44 pot through analog channel AN0, and displays a voltage between 0.00V and 3.30V on the LCD using the LCD module. Voltage is continually updated until the mode is exited by pressing either the S1 or S2 switch. 2. Thermometer (F2) This mode uses the A/D module to measure the voltage of the thermistor R11 through analog channel AN1, and converts to temperature both in Celsius and Fahrenheit and displays the temperature on the LCD using the LCD module. Temperature is continually updated until the mode is exited by pressing either the S1 or S2 switch. 3. Clock (F3)(1) This mode uses the Timer1 module and a 32 kHz clock crystal. Once this mode is entered from the main menu, the Real-Time Clock will start counting from 00:00:00. The S3 switch is used to increment minutes and the S4 switch is used to increment hours. To perform the increment operations, press and hold the switches. The clock keeps running continuously until the mode is exited by pressing either the S1 or S2 switch. 4. Charge Pump and Software Contrast (F4)(1) This mode is available only for the PIC18F85J90 and PIC18F87J90 families of devices and uses the on-board charge pump and LCD voltage regulator. The LCD module is configured in Charge Pump mode and software contrast is achieved by either pressing S3 to increase the contrast or S4 to decrease the contrast until the mode is exited by pressing either the S1 or S2 switch. By exiting this mode, the Voltmeter mode is entered and retains the contrast level. Note 1:  2010 Microchip Technology Inc. For low-power battery operation in JP17, remove jumper on VCC and I/O and connect I/O and RB0. DS51662C-page 17 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE 3-1: DEMO PROGRAM FLOWCHART Power-up Display Microchip Logo Display Varitronix Logo Sleep Wake-up from Sleep by Pressing either S1 or S2 A Voltmeter Demo Display F1 Start A/D Conversion on Channel AN0 Sleep Wake-up from Sleep on Completion of Conversion Display the Voltage Is S1/S2 switch pressed? Yes B No DS51662C-page 18  2010 Microchip Technology Inc. Using the Demo Software FIGURE 3-2: DEMO PROGRAM FLOWCHART B Thermometer Demo Display F2 Start A2D Conversion on Channel AN1 Sleep Wake-up from Sleep on Completion of Conversion Display the Temperature Is S1/S2 switch pressed? Yes C No  2010 Microchip Technology Inc. DS51662C-page 19 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE 3-3: DEMO PROGRAM FLOWCHART C Real-Time Clock Demo Display F3 Is S1/S2 switch pressed? Yes D No Display Time Sleep Wake-up from Sleep Every Second Is S3 switch pressed? Yes Increment Minute No Is S4 switch pressed? Yes Increment Hour No DS51662C-page 20  2010 Microchip Technology Inc. Using the Demo Software FIGURE 3-4: DEMO PROGRAM FLOWCHART D Software Contrast Demo using Charge Pump Display F4 Is S1/S2 switch pressed? Yes A No Display LCDREG bits Is S3 switch pressed? Yes Increase Contrast No Is S4 switch pressed? Yes Decrease Contrast No  2010 Microchip Technology Inc. DS51662C-page 21 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE 3-5: DEMO PROGRAM FLOWCHART ISR Increment Second Register Is it 60? No Yes Clear Second Register, Increment Minute Register Is it 60? No Yes Clear Minute Register, Increment Hour Register Is it 24? No Yes Clear Hour Register Return DS51662C-page 22  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Appendix A. Board Technical Information The PICDEM™ LCD 2 hardware is not complicated and is intended to illustrate the ease of use of various PIC® microcontrollers. The PICDEM LCD 2 features the following hardware elements. Note:  2010 Microchip Technology Inc. Many of the following hardware sections will require specific demo board jumper configurations. If a jumper is not listed in a particular section, then that jumper has no effect on the circuitry within the hardware section you are working. Figure A-1 shows a diagram of the PICDEM LCD 2 silkscreen with all necessary jumpers highlighted in gray. Also, refer to the schematic for circuit connections. DS51662C-page 23 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE A-1: DS51662C-page 24 PICDEM™ LCD 2 DEFAULT JUMPER LOCATION  2010 Microchip Technology Inc. Board Technical Information A.1 PROCESSORS While there is no actual processor populated on the board, a processor is provided with the plug-in module (PIM) that is shipped with the demonstration board. The default processor on the PIM is the PIC18F85J90. The board also supports the PIC18F87J90, PIC18F8490, PIC16F946, PIC16F917, and PIC16F/LF1946/47 processors, which have been designed for use with the PICDEM LCD 2. These three processors are in the PICDEM LCD 2 PIM Pack which is available for separate purchase. The part numbers for a replacement PIC18F85J90 and the PIM pack are given in Table A-1. TABLE A-1: PART NUMBERS(†) Item Part number PICDEM LCD 2 PIM Pack • PIC18F8490 PIM • PIC16F946 PIM • PIC16F917 PIM MA180019 PIC18F85J90 PIM MA180022 PIC16F1946/7 PIM PIC16LF1946/7 PIM MA160016 MA160015 † For the availability and pricing of parts, go to www.microchipdirect.com. Note:  2010 Microchip Technology Inc. The PIC16LF1946/7 PIM (MA160015) is limited to a maximum of 3.3V operating voltage. DS51662C-page 25 PICDEM™ LCD 2 Demonstration Kit User’s Guide A.2 LCD DISPLAY A custom-made segmented LCD glass, manufactured by the Varitronix Corporation, is provided as shown in Figure A-2. This LCD has 4 commons and 32 segments. Table A-2 provides a few of the specifics for the display. Refer to the Varitronix specification sheet (VL_5573_V00) for additional details. 20 SEG14 SEG18 SEG13 SEG19 SEG12 SEG20 SEG11 SEG21 SEG10 SEG22 SEG9 SEG23 SEG8 SEG24 SEG7 SEG25 SEG6 SEG26 SEG5 SEG27 SEG4 SEG28 SEG3 SEG29 SEG2 SEG30 SEG1 SEG31 SEG0 COM3 COM0 1 Legend: N.C. SEG15 SEG17 40 COM1 N.C. COM2 SEG16 N.C. PICDEM™ LCD 2 DISPLAY 21 N.C. FIGURE A-2: N.C. = No connection © VL Electronics TABLE A-2: LCD GLASS SPECIFICATIONS Type Specification P.I.D. VL_5573_V00 Mode/Color/Type Positive / -- / TN Viewing Direction 6:00 O’Clock Driving Scheme 1/4 Duty, 1/3 Bias Drive Voltage (VLCD) ~3.0 Volt (p-p), +20°C Operating Temperature 0°C - +50°C Storage Temperature -10°C - +60°C Polarizer – Front STD.Transmissive Polarizer – Back STD.Reflective Since the glass used on the PICDEM LCD 2 operates at 3V, there is a voltage protection circuit on the LCDBIAS3 pin, which is enabled in the default configuration. When enabled, even if the VDD is greater than 3V, it regulates the LCDBIAS3 voltage such that it always maintains the value to 3V. This is not necessary for operation of the LCD module, but it is a protection circuit to prevent accidentally applying voltages higher than 3V to the LCD glass present on the board. DS51662C-page 26  2010 Microchip Technology Inc. Board Technical Information FIGURE A-3: DISPLAY DEFINITIONS © VL Electronics FIGURE A-4: DIGIT DESCRIPTION © VL Electronics  2010 Microchip Technology Inc. DS51662C-page 27 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-3: Pin LCD SEGx AND COMx ICE Pin COM0 COM1 COM2 COM3 1 N.C. N.C. N.C. N.C. 2 COM0 — — — 3 SEG0 S12 — — S10 4 SEG1 S11 — — — 5 SEG2 7D 7F 7A 7E 6 SEG3 DP2 7G 7B 7C 7 SEG4 8D 8F 8A 8E 8 SEG5 S13 8G 8B 8C 9 SEG6 X23 X25 X26 X24 10 SEG7 5B 5C — 5G 11 SEG8 5A 5E 5D 5F 12 SEG9 4B 4C DP1 4G 13 SEG10 4A 4E 4D 4F 14 SEG11 3B 3C — 3G 15 SEG12 — X22 X21 — 16 SEG13 X17 X19 X20 X18 17 SEG14 X16 X14 X13 X15 18 SEG15 X9 X11 X12 X10 19 — COM1 — — 20 N.C. N.C. N.C. N.C. 21 N.C. N.C. N.C. N.C. 22 — — COM2 — 23 SEG16 X8 X6 X5 X7 24 SEG17 X1 X3 X4 X2 25 SEG18 — F2 F1 F3 26 SEG19 1A 1E F4 1F 27 SEG20 1B 1C 1D 1G 28 SEG21 2A 2E 2D 2F 29 SEG22 2B 2C COL 2G 30 SEG23 3A 3E 3D 3F 31 SEG24 S9 6G 6B 6C 32 SEG25 6D 6F 6A 6E 33 SEG26 X31 X33 X34 X32 34 SEG27 — X27 X35 X30 35 SEG28 — X28 X36 X29 36 SEG29 S1 S3 S4 S2 37 SEG30 S6 — — S7 38 SEG31 S5 — — S8 39 — — — COM3 40 N.C. N.C. N.C. N.C. Legend: N.C. = No connection DS51662C-page 28  2010 Microchip Technology Inc. Board Technical Information A.2.1 Device-Specific LCD Segment Configuration The following figures and tables detail which segments are available for specific PIC® devices. TABLE A-4: PIC18F85J90 PIM AND ICE PIN/PORT COMPARISON PIC18F85J90 PIC18F85J90 PIC18F85J90 PIM Pin No. Port Pin ICE Pin ICE ICE Pin Port No. 16 PIC18F85J90 PIC18F85J90 PIC18F85J90 ICE Pin PIM Pin No. Port Pin 41 RJ6 SEG37 SEG37 ICE Port ICE Pin No. RJ6 54 1 RH2 SEG45 SEG30 RG0 2 RH3 SEG44 SEG29 RG1 17 42 RJ7 SEG36 SEG36 RJ7 55 3 RE1 BIAS2 BIAS2 RE1 14 43 RC2 SEG13 SEG13 RC2 56 4 RE0 BIAS1 BIAS1 RE0 15 44 RC3 SEG17 SEG17 RA3 39 5 RG0 BIAS0 BIAS0 RB5 67 45 RC4 SEG16 SEG16 RA2 40 6 RG1 NC NC 46 RC5 SEG12 SEG12 RC5 59 7 RG2 VLCAP1 VLCAP1 RC3 57 47 RB7 RB7 RB7 RB7 60 8 RG3 VLCAP2 VLCAP2 RC4 58 48 VDD ICEVDD ICEVDD VDD 61 9 RG5 MCLR ICEMCLR RG5 20 49 RA7 OSC1 OSC1 RA7 62 10 RG4 SEG26 SEG26 RG4 21 50 RA6 OSC2 OSC2 RA6 63 11 VSS VSS VSS VSS 23 51 VSS VSS VSS VSS 65 12 VDDCORE VDDCORE VDD VDD 24 52 RB6 RB6 RB6 RB6 66 13 RF7 SEG25 SEG25 RF7 25 53 RB5 SEG29 SEG27 RG3 19 14 RF6 SEG24 SEG24 RF6 26 54 RB4 SEG11 SEG11 RB4 68 15 RF5 SEG23 SEG23 RF5 27 55 RB3 SEG10 SEG10 RB3 69 16 RF4 SEG22 SEG22 RF4 28 56 RB2 SEG9 SEG9 RB2 70 17 RF3 SEG21 SEG21 RF3 29 57 RB1 SEG8 SEG8 RB1 71 18 RF2 SEG20 SEG20 RF2 30 58 RB0 RB0 RB0 RB0 72 19 RH7 SEG43 SEG43 RH7 31 59 RJ3 SEG35 SEG35 RJ3 73 20 RH6 SEG42 SEG42 RH6 32 60 RJ2 SEG34 SEG34 RJ2 74 21 RH5 SEG41 SEG41 RH5 33 61 RJ1 SEG33 SEG33 RJ1 75 22 RH4 SEG40 SEG40 RH4 34 62 RJ0 NC NC 23 RF1 SEG19 SEG19 RF1 35 63 RD7 SEG7 SEG7 RD7 77 24 ENVREG ENVREG 64 RD6 SEG6 SEG6 RD6 78 25 AVDD AVDD ICEVDD AVDD 37 65 RD5 SEG5 SEG5 RD5 79 26 AVSS AVSS AVSS AVSS 38 80 27 RA3 NC NC 28 RA2 AN2 AN1 RA1 29 RA1 SEG18 SEG18 66 RD4 SEG4 SEG4 RD4 67 RD3 SEG3 SEG3 RD3 81 41 68 RD2 SEG2 SEG2 RD2 82 RF0 36 69 RD1 SEG1 SEG1 RD1 83 84 30 RA0 AN0 AN0 RA0 42 70 VSS VSS VSS VSS 31 VSS VSS VSS VSS 44 71 VDD VDD VDD VDD 2 32 VDD ICEVDD ICEVDD VDD 45 72 RD0 SEG0 SEG0 RD0 3 33 RA5 SEG15 SEG15 RA5 46 73 RE7 SEG31 SEG28 RG2 18 34 RA4 SEG14 SEG14 RA4 47 74 RE6 COM3 COM3 RE6 5 35 RC1 T1OSCI T1OSCI RC1 48 75 RE5 COM2 COM2 RE5 6 36 RC0 T1OSCO T1OSCO RC0 RE4 37 RC6 TX/CK 38 RC7 39 RJ4 RJ5 SEG38 40 Legend: 49 76 RE4 COM1 COM1 TX/CK RC6 50 77 RE3 COM0 COM0 COM0 7 RX/DT RX/DT RC7 51 78 RE2 BIAS3 BIAS3 RE2 9 SEG39 SEG39 RJ4 52 79 RH0 SEG47 SEG32 RJ0 76 SEG38 RJ5 53 80 RH1 SEG46 SEG31 RE7 4 8 Unshaded cells indicate where a perfect match between PIM and ICE pins and ports exists. Shaded cells indicate where differences between PIM and ICE ports and pins exist. Bold text indicates the PIM pins that are not connected to any ICE pins or ports.  2010 Microchip Technology Inc. DS51662C-page 29 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-5: PIC18F85J90 ICE Pin # NC 21 COM2 COM2 22 SEG16 SEG16 23 Pin # ICE NC 20 NC COM3 COM2 19 COM1 COM1 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 NC PIC18F85J90 SEG17 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG14 SEG18 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG13 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 SEG12 SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG11 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG10 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG9 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG8 SEG24 SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG7 SEG25 SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG6 SEG26 SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 SEG5 SEG29 SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 SEG4 SEG31 SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 SEG3 SEG44 SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 SEG2 SEG45 SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 SEG1 SEG46 SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 SEG0 COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC Legend: DS51662C-page 30 PIC18F85J90 LCD CONNECTIONS COMPARISON Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM.  2010 Microchip Technology Inc. Board Technical Information 20 N.C. SEGMENT CONFIGURATION FOR PIC18F85J90 DEVICES 21 N.C. FIGURE A-5: COM2 SEG16 SEG15 SEG17 SEG14 SEG18 SEG13 SEG19 SEG12 SEG20 SEG11 SEG21 SEG10 SEG22 SEG9 SEG23 SEG8 SEG24 SEG7 SEG25 SEG6 SEG26 SEG5 SEG29 SEG27(2) SEG4 SEG31 SEG28(2) SEG3 SEG44(1) SEG29 SEG2 SEG45(1) SEG30(2) SEG1 SEG46(1) SEG31 SEG0 COM1 1 Legend: Note 1: 2: N.C. COM0 40 N.C. COM3 N.C. = No connection SEG44, SEG45, and SEG46 exist only on PIC18F85J90 devices. Disable SEG27, SEG28, SEG30, and SEG32 when the LCD module is enabled. Although SEG32 is not listed in the diagram, it is multiplexed with the Timer1 oscillator, and therefore, must be disabled when the Timer1 oscillator is enabled. © VL Electronics TABLE A-6: PIC18F85J90 PORT AND PIN COMPARISON PIC18F85J90 Port PIC18F85J90 PIN ICE Pin ICE Port RA0 AN0 AN0 RA0 RA1 SEG18 SEG18 RF0 RA6 OSC2 OSC2 RA6 RA7 OSC1 OSC1 RA7 Legend: RB0 RB0 RB0 RB0 RB5 SEG29 SEG27 RG3 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RC0 T1OSC1 T1OSC0 RC0 RC1 TIOSC0 TIOSC1 RC1 RC3 SEG17 SEG17 RA3 RC4 SEG16 SEG16 RA2 RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM.  2010 Microchip Technology Inc. DS51662C-page 31 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-7: PIC18F87J90 PIM AND ICE PIN/PORT COMPARISON PIC18F87J90 PIC18F87J90 PIC18F87J90 PIM Pin No. Port Pin ICE Pin ICE ICE Pin Port No. PIC18F87J90 PIC18F87J90 PIC18F87J90 ICE Pin PIM Pin No. Port Pin ICE Port ICE Pin No. 54 1 RH2 SEG45 SEG30 RG0 16 41 RJ6 SEG37 SEG37 RJ6 2 RH3 SEG44 SEG29 RG1 17 42 RJ7 SEG36 SEG36 RJ7 55 3 RE1 BIAS2 BIAS2 RE1 14 43 RC2 SEG13 SEG13 RC2 56 4 RE0 BIAS1 BIAS1 RE0 15 44 RC3 SEG17 SEG17 RA3 39 5 RG0 BIAS0 BIAS0 RB5 67 45 RC4 SEG16 SEG16 RA2 40 6 RG1 NC NC 46 RC5 SEG12 SEG12 RC5 59 7 RG2 VLCAP1 VLCAP1 RC3 57 47 RB7 RB7 RB7 RB7 60 8 RG3 VLCAP2 VLCAP2 RC4 58 48 VDD ICEVDD ICEVDD VDD 61 ICEMCLR RG5 62 9 RG5 MCLR 20 49 RA7 OSC1 OSC1 RA7 10 RG4 SEG26 SEG26 RG4 21 50 RA6 OSC2 OSC2 RA6 63 11 VSS VSS VSS VSS 23 51 VSS VSS VSS VSS 65 12 VDDCORE VDDCORE VDD VDD 24 52 RB6 RB6 RB6 RB6 66 13 RF7 SEG25 SEG25 RF7 25 53 RB5 SEG29 SEG27 RG3 19 14 RF6 SEG24 SEG24 RF6 26 54 RB4 SEG11 SEG11 RB4 68 15 RF5 SEG23 SEG23 RF5 27 55 RB3 SEG10 SEG10 RB3 69 16 RF4 SEG22 SEG22 RF4 28 56 RB2 SEG9 SEG9 RB2 70 17 RF3 SEG21 SEG21 RF3 29 57 RB1 SEG8 SEG8 RB1 71 18 RF2 SEG20 SEG20 RF2 30 58 RB0 RB0 RB0 RB0 72 19 RH7 SEG43 SEG43 RH7 31 59 RJ3 SEG35 SEG35 RJ3 73 20 RH6 SEG42 SEG42 RH6 32 60 RJ2 SEG34 SEG34 RJ2 74 21 RH5 SEG41 SEG41 RH5 33 61 RJ1 SEG33 SEG33 RJ1 75 22 RH4 SEG40 SEG18 RF0 34 62 RJ0 NC NC SEG19 RF1 35 23 RF1 SEG19 24 ENVREG ENVREG 25 AVDD AVDD ICEVDD 26 AVSS AVSS AVSS 27 RA3 CTMU NC 28 RA2 AN2 AN1 29 RA1 CTMU NC 30 RA0 AN0 31 VSS 32 VDD 63 RD7 SEG7 SEG7 RD7 77 64 RD6 SEG6 SEG6 RD6 78 AVDD 37 65 RD5 SEG5 SEG5 RD5 79 AVSS 38 66 RD4 SEG4 SEG4 RD4 80 67 RD3 SEG3 SEG3 RD3 81 68 RD2 SEG2 SEG2 RD2 82 RA1 41 36 69 RD1 SEG1 SEG1 RD1 83 AN0 RA0 42 70 VSS VSS VSS VSS 84 VSS VSS VSS 44 71 VDD VDD VDD VDD 2 ICEVDD ICEVDD VDD 45 72 RD0 SEG0 SEG0 RD0 3 18 33 RA5 SEG15 SEG15 RA5 46 73 RE7 SEG31 SEG28 RG2 34 RA4 SEG14 SEG14 RA4 47 74 RE6 COM3 COM3 RE6 5 35 RC1 T1OSCI T1OSCI RC1 48 75 RE5 COM2 COM2 RE5 6 36 RC0 T1OSCO T1OSCO RC0 49 76 RE4 COM1 COM1 RE4 7 37 RC6 TX/CK TX/CK RC6 50 77 RE3 COM0 COM0 COM0 38 RC7 RX/DT RX/DT RC7 51 78 RE2 BIAS3 BIAS3 RE2 9 39 RJ4 SEG39 SEG39 RJ4 52 79 RH0 SEG47 SEG32 RJ0 76 40 RJ5 SEG38 SEG38 RJ5 53 80 RH1 SEG46 SEG31 RE7 4 Legend: 8 Unshaded cells indicate where a perfect match between PIM and ICE pins and ports exists. Shaded cells indicate where differences between PIM and ICE ports and pins exist. Bold text indicates the PIM pins that are not connected to any ICE pins or ports. DS51662C-page 32  2010 Microchip Technology Inc. Board Technical Information TABLE A-8: PIC18F87J90 PIC18F87J90 LCD CONNECTIONS COMPARISON Pin # ICE 20 NC ICE Pin # NC 21 COM2 COM2 22 COM3 COM2 19 COM1 COM1 SEG16 SEG16 23 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 NC NC PIC18F87J90 SEG17 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG14 SEG40 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG13 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 SEG12 SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG11 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG10 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG9 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG8 SEG24 SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG7 SEG25 SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG6 SEG26 SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 SEG5 SEG29 SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 SEG4 SEG31 SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 SEG3 SEG44 SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 SEG2 SEG45 SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 SEG1 SEG46 SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 SEG0 COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC Legend:  2010 Microchip Technology Inc. Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. DS51662C-page 33 PICDEM™ LCD 2 Demonstration Kit User’s Guide 20 N.C. SEGMENT CONFIGURATION FOR PIC18F87J90 DEVICES 21 N.C. FIGURE A-6: COM2 SEG16 SEG15 SEG17 SEG14 SEG18 SEG13 SEG19 SEG12 SEG20 SEG11 SEG21 SEG10 SEG22 SEG9 SEG23 SEG8 SEG24 SEG7 SEG25 SEG6 SEG26 SEG5 SEG29 SEG27(2) SEG4 SEG31 SEG28(2) SEG3 SEG44(1) SEG29 SEG2 SEG45(1) SEG30(2) SEG1 SEG46(1) SEG31 SEG0 COM1 1 Legend: Note 1: 2: N.C. COM0 40 N.C. COM3 N.C. = No connection SEG44, SEG45, and SEG46 exist only on PIC18F87J90 devices. Disable SEG27, SEG28, SEG30, and SEG32 when the LCD module is enabled. Although SEG32 is not listed in the diagram, it is multiplexed with the Timer1 oscillator, and therefore, must be disabled when the Timer1 oscillator is enabled. © VL Electronics TABLE A-9: PIC18F87J90 PORT AND PIN COMPARISON PIC18F87J90 Port PIC18F87J90 PIN ICE Pin ICE Port RA0 AN0 AN0 RA0 RA6 OSC2 OSC2 RA6 RA7 OSC1 OSC1 RA7 RB0 RB0 RB0 RB0 Legend: RB5 SEG29 SEG27 RG3 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RC0 T1OSC1 T1OSC0 RC0 RC1 TIOSC0 TIOSC1 RC1 RC3 SEG17 SEG17 RA3 RC4 SEG16 SEG16 RA2 RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. DS51662C-page 34  2010 Microchip Technology Inc. Board Technical Information TABLE A-10: PIC18F8490 PIM AND ICE PORT/PIN COMPARISON PIC18F8490 PIC18F8490 PIC18F8490 PIM Pin No. Port Pin ICE Pin ICE Port ICE Pin No. PIC18F8490 PIC18F8490 PIC18F8490 ICE Pin PIM Pin No. Port Pin ICE Port ICE Pin No. 1 RH2 SEG45 SEG45 RH2 12 41 RJ6 SEG37 SEG37 RJ6 54 2 RH3 SEG44 SEG44 RH3 13 42 RJ7 SEG36 SEG36 RJ7 55 3 LCDBIAS2 LCDBIAS2 BIAS2 RE1 14 43 RC2 SEG13 SEG13 RC2 56 4 LCDBIAS1 LCDBIAS1 BIAS1 RE0 15 44 RC3 RC3 RC3 RC3 57 5 RG0 SEG30 SEG30 RG0 16 45 RC4 RC4 RC4 RC4 58 6 RG1 SEG29 SEG29 RG1 17 46 RC5 SEG12 SEG12 RC5 59 7 RG2 SEG28 SEG28 RG2 18 47 RB7 RB7 RB7 RB7 60 8 RG3 SEG27 SEG27 RG3 19 48 VDD VDD ICEVDD VDD 61 9 RG5 MCLR ICEMCLR RG5 20 49 RA7 OSC1 OSC1 RA7 62 10 RG4 SEG26 SEG26 RG4 21 50 RA6 OSC2 OSC2 RA6 63 11 VSS VSS VSS VSS 23 51 VSS VSS VSS VSS 65 12 VDD VDD ICEVDD VDD 24 52 RB6 RB6 RB6 RB6 66 13 RF7 SEG25 SEG25 RF7 25 53 RB5 RB5 RB5 RB5 67 14 RF6 SEG24 SEG24 RF6 26 54 RB4 SEG11 SEG11 RB4 68 15 RF5 SEG23 SEG23 RF5 27 55 RB3 SEG10 SEG10 RB3 69 16 RF4 SEG22 SEG22 RF4 28 56 RB2 SEG9 SEG9 RB2 70 17 RF3 SEG21 SEG21 RF3 29 57 RB1 SEG8 SEG8 RB1 71 18 RF2 SEG20 SEG20 RF2 30 58 RB0 RB0 RB0 RB0 72 19 RH7 SEG43 SEG43 RH7 31 59 RJ3 SEG35 SEG35 RJ3 73 20 RH6 SEG42 SEG42 RH6 32 60 RJ2 SEG34 SEG34 RJ2 74 21 RH5 SEG41 SEG41 RH5 33 61 RJ1 SEG33 SEG33 RJ1 75 22 RH4 SEG40 SEG40 RH4 34 62 RJ0 SEG32 SEG32 RJ0 76 23 RF1 SEG19 SEG19 RF1 35 63 RD7 SEG7 SEG7 RD7 77 24 RF0 SEG18 SEG18 RF0 36 64 RD6 SEG6 SEG6 RD6 78 25 AVDD AVDD ICEVDD AVDD 37 65 RD5 SEG5 SEG5 RD5 79 26 AVSS AVSS AVSS AVSS 38 66 RD4 SEG4 SEG4 RD4 80 27 RA3 SEG17 SEG17 RA3 39 67 RD3 SEG3 SEG3 RD3 81 28 RA2 SEG16 SEG16 RA2 40 68 RD2 SEG2 SEG2 RD2 82 29 RA1 AN1 AN1 RA1 41 69 RD1 SEG1 SEG1 RD1 83 30 RA0 AN0 AN0 RA0 42 70 VSS VSS VSS VSS 84 31 VSS VSS VSS VSS 44 71 VDD VDD VDD VDD 2 32 VDD VDD ICEVDD VDD 45 72 RD0 SEG0 SEG0 RD0 3 33 RA5 SEG15 SEG15 RA5 46 73 RE7 SEG31 SEG31 RE7 4 34 RA4 SEG14 SEG14 RA4 47 74 RE6 COM3 COM3 RE6 5 35 RC1 TIOSC0 TIOSC1 RC1 48 75 RE5 COM2 COM2 RE5 6 36 RC0 T1OSC1 T1OSC0 RC0 49 76 RE4 COM1 COM1 RE4 7 37 RC6 TX/CK TX/CK RC6 50 77 COM0 COM0 COM0 RE3 8 38 RC7 RX/DT RX/DT RC7 51 78 LCDBIAS3 LCDBIAS3 BIAS3 RE2 9 39 RJ4 SEG39 SEG39 RJ4 52 79 RH0 SEG47 SEG47 RH0 10 40 RJ5 SEG38 SEG38 RJ5 53 80 RH1 SEG46 SEG46 RH1 11  2010 Microchip Technology Inc. DS51662C-page 35 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-11: PIC18F8490 LCD CONNECTIONS COMPARISON PIC18F8490 ICE Pin # Pin # ICE PIC18F8490 NC 21 NC NC 20 NC COM2 COM2 22 COM3 COM2 19 COM1 COM1 SEG16 SEG16 23 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 SEG17 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG14 SEG13 SEG18 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 SEG12 SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG11 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG10 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG9 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG8 SEG24 SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG7 SEG25 SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG6 SEG26 SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 SEG5 SEG27 SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 SEG4 SEG28 SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 SEG3 SEG29 SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 SEG2 SEG30 SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 SEG1 SEG31 SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 SEG0 COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC 20 N.C. SEGMENT CONFIGURATION FOR PIC18F8490 DEVICES 21 N.C. FIGURE A-7: COM2 SEG16 COM1 SEG18 SEG13 SEG19 SEG12 SEG20 SEG11 SEG21 SEG10 SEG22 SEG9 SEG23 SEG8 SEG24 SEG7 SEG25 SEG6 SEG26 SEG5 SEG27 SEG4 SEG28 SEG3 SEG29 SEG2 SEG30 SEG1 SEG31 SEG0 COM0 Legend: 1 40 N.C. COM3 N.C. SEG17 SEG15 SEG14 N.C. = No connection © VL Electronics DS51662C-page 36  2010 Microchip Technology Inc. Board Technical Information TABLE A-12: PIC18F8490 PIN AND PORT COMPARISON PIC18F8490 Port PIC18F8490 Pin ICE Pin ICE Port RA0 AN0 AN0 RA0 RA1 AN1 AN1 RA1 RA6 OSC2 OSC2 RA6 RA7 OSC1 OSC1 RA7 RB0 RB0 RB0 RB0 RB5 RB5 RB5 RB5 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RC0 T1OSC1 T1OSC0 RC0 RC1 TIOSC0 TIOSC1 RC1 RC3 RC3 RC3 RC3 RC4 RC4 RC4 RC4  2010 Microchip Technology Inc. RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 DS51662C-page 37 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-13: PIC16F946 PIM AND ICE PIN/PORT COMPARISON PIC16F946 PIC16F946 PIC16F946 PIM Pin Port Pin No. ICE ICE Pin ICE Port Pin No. PIC16F946 PIC16F946 PIC16F946 PIM Pin Port Pin No. ICE Pin ICE Port ICE Pin No. 1 RD6 SEG19 SEG19 RF1 35 33 RE0 SEG21 SEG21 RF3 29 2 RD7 SEG20 SEG20 RF2 30 34 RE1 SEG22 SEG22 RF4 28 3 RG0 SEG36 SEG36 RB1 71 35 RE2 SEG23 SEG23 RF5 4 RG1 SEG37 SEG37 RB2 70 36 ICEMCLR ICEMCLR ICEMCLR ICEMCLR 27 20 5 RG2 SEG38 SEG38 RJ5 53 37 RE4 SEG24 SEG24 RF6 6 RG3 SEG39 SEG39 RJ4 52 38 ICEVDD ICEVDD ICEVDD ICEVDD 26 61 7 RG4 SEG40 SEG40 RH4 34 39 RA7 T1OSCI T1OSCI RC1 48 8 RG5 SEG41 SEG41 RH5 33 40 RA6 T1OSCO T1OSCO RC0 49 9 VSS VSS VSS VSS 23 41 VSS VSS VSS VSS 65 10 VDD VDD ICEVDD ICEVDD 24 42 RE5 SEG25 SEG25 RF7 25 11 RF0 SEG32 SEG32 RJ0 76 43 RE6 SEG26 SEG26 RG4 21 12 RF1 SEG33 SEG33 RD0 3 44 RE7 SEG27 SEG27 RG3 19 13 RF2 SEG34 SEG34 RD6 78 45 RE4 SEG28 SEG28 RG2 18 14 RF3 SEG35 SEG35 RD7 77 46 RF5 SEG29 SEG29 RG1 17 15 RB0 RB0 RB0 RB0 72 47 RF6 SEG30 SEG30 RG0 16 16 RB1 SEG1 SEG1 RD1 83 48 RF7 SEG31 SEG31 RE7 4 17 RB2 SEG2 SEG2 RD2 82 49 RC0 VLCD1 BIAS1 RE0 15 18 RB3 SEG3 SEG3 RD3 81 50 RC1 VLCD2 BIAS2 RE1 14 19 VDD VDD ICEVDD ICEVDD 37 51 RC2 VLCD3 BIAS3 RE2 9 20 VSS VSS VSS AVSS 38 52 RC3 RC3 VLCAP1 RC3 57 RE6 5 1 21 RB4 COM0 COM0 RE3 8 53 RD0 COM3 COM3 22 RB5 COM1 COM1 RE4 7 54 RD1 NC NC 23 RB6 RB6 RB6 RB6 66 55 RD2 NC NC 24 RB7 RB7 RB7 RB7 60 56 VSS VSS VSS VSS 25 AVDD AVDD ICEVDD ICEVDD 45 57 VDD VDD VDD VDD 2 26 AVSS AVSS AVSS AVSS 44 58 RD3 SEG16 SEG16 RA2 40 27 RA0 AN0 AN0 RA0 42 59 RC4 RC4 RC4 VLCAP1\ RC4 58 28 RA1 AN1 AN1 RA1 41 60 RC5 SEG10 SEG10 RB3 69 29 RA2 COM2 COM2 RE5 6 61 RC6 TX/CK TX/CK TX/CK 50 30 RA3 SEG15 SEG15 RA5 46 62 RC7 RX/DT RX/DT RX/DT 51 31 RA4 SEG4 SEG4 RD4 80 63 RD4 SEG17 SEG17 RA3 39 32 RA5 SEG5 SEG5 RD5 79 64 RD5 SEG18 SEG18 RF0 36 Legend: Unshaded cells indicate where a perfect match between PIM and ICE pins and ports exists. Shaded cells indicate where differences between PIM and ICE ports and pins exist. Bold text indicates the PIM pins that are not connected to any ICE pins or ports. DS51662C-page 38  2010 Microchip Technology Inc. Board Technical Information TABLE A-14: PIC16F946 LCD CONNECTIONS COMPARISON PIC16F946 ICE NC 21 NC NC 20 NC COM2 COM2 22 COM3 COM2 19 COM1 COM1 SEG16 SEG16 23 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 SEG17 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG41 SEG18 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG40 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 SEG39 SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG38 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG10 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG37 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG36 SEG24 SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG35 SEG25 SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG34 SEG26 SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 SEG5 SEG27 SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 SEG4 SEG28 SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 SEG3 SEG29 SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 SEG2 SEG30 SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 SEG1 SEG31 SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 SEG33 COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC ICE PIC16F946 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. SEGMENT CONFIGURATION FOR PIC16F946 DEVICES 20 21 FIGURE A-8: N.C. Pin # N.C. Legend: Pin # COM2 SEG16 COM1 SEG17 SEG14(1) SEG18 SEG13(1) SEG40 SEG19 SEG12(1) SEG39 SEG20 SEG11(1) SEG38 SEG21 SEG10 SEG15 SEG41 SEG22 SEG9(1) SEG37 SEG23 SEG8(1) SEG36 SEG24 SEG7(1) SEG35 SEG25 SEG6(1) SEG34 SEG26 SEG5 SEG27 SEG4 SEG28 SEG3 SEG29 SEG2 SEG30 SEG1 SEG31 SEG0(1) SEG33 1 Legend: Note 1: N.C. COM0 40 N.C. COM3 N.C. = No connection Disable SEG0, SEG6, SEG7, SEG8, SEG9, SEG11, SEG12, SEG13 and SEG14 when the LCD module is enabled. © VL Electronics  2010 Microchip Technology Inc. DS51662C-page 39 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-15: PIC16F946 Port PIC16F946 Pin ICE Pin ICE Port RA0 AN0 AN0 RA0 RA1 AN1 AN1 RA1 RA6 T1OSCO T1OSCO RC0 RA7 T1OSCI T1OSCI RC1 RB0 Legend: DS51662C-page 40 PIC16F946 PORT AND PIN COMPARISON RB0 RB0 RB0 RB5 COM1 COM1 RE4 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RC0 VLCD1 BIAS1 RE0 RC1 VLCD2 BIAS2 RE1 RC3 RC3 RC3 RC3 RC4 RC4 RC4 RC4 RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin/port on the PIM.  2010 Microchip Technology Inc. Board Technical Information TABLE A-16: PIC16F/LF1946/7 PIM AND ICE PIN/PORT COMPARISON PIC16/LF1 PIC16F/LF PIC16F/LF 946/7 PIM 1946/7 1946/7 Pin Pin No. Port ICE Pin ICE ICE Port Pin No. PIC16F/LF PIC16F/LF PIC16F/LF 1946/7PIM 1946/7 1946/7 Pin Pin No. Port ICE Pin ICE Port ICE Pin No. 1 RE1 VLCD2 BIAS2 E1 14 33 C2 SEG13 SEG13 RC2 56 2 RE0 VLCD1 BIAS1 E0 15 34 C3 RC3 RC3 RC3 57 3 RG0 SEG42 SEG42 RH6 32 35 RE2 RC4 RC4 RC4 58 4 RG1 SEG43 SEG43 RH7 31 36 RC5 SEG12 SEG12 RC5 59 5 RG2 SEG44 SEG44 RJ3 13 37 RB7 RB7 RB7 RB7 60 6 RG3 SEG45 SEG45 RG5 20 38 VDD VDD ICEVDD ICEVDD 61 7 RG5 MCLR ICEMCLR RG5 20 39 OSC1 OSC1 OSC1 RC1 62 8 RG4 SEG26 SEG26 RG4 21 40 RA6 OSC2 OSC2 RA6 63 9 VSS VSS VSS VSS 23 41 VSS VSS VSS VSS 65 10 VDD VDD ICEVDD ICEVDD 24 42 RB6 RB6 RB6 RB6 66 11 RF7 SEG25 SEG25 RF7 25 43 RB5 RB5 RB5 RB5 67 12 RF6 SEG24 SEG24 RF6 26 44 RB4 SEG11 SEG11 RB4 68 13 RF5 SEG23 SEG23 RF5 27 45 RB3 SEG10 SEG10 RB3 69 14 RF4 SEG22 SEG22 RF4 28 46 RB2 SEG9 SEG9 RB2 70 15 RF3 SEG21 SEG21 RF3 29 47 RB1 SEG8 SEG8 RB1 71 16 RF2 SEG20 SEG20 RF2 30 48 RB0 RB0 RB0 RB0 72 17 RF1 SEG19 SEG19 RF1 35 49 RD7 SEG7 SEG7 RD7 77 18 RF0 SEG41 SEG41 RH5 33 50 RD6 SEG6 SEG6 RD6 78 19 VDD VDD ICEVDD ICEVDD 37 51 RD5 SEG5 SEG5 RD5 79 20 VSS VSS VSS VSS 38 52 RD4 SEG4 SEG4 RD4 80 21 RA3 SEG35 SEG35 RJ3 73 53 RD3 SEG3 SEG3 RD3 81 22 RA2 SEG34 SEG34 RJ2 74 54 RD2 SEG2 SEG2 RD2 82 23 RA1 AN1 AN1 RA1 41 55 RD1 SEG1 SEG1 RD1 83 24 RA0 AN0 AN0 RA0 42 56 VSS VSS VSS VSS 84 25 VSS VSS ICEVSS ICEVSS 44 57 VDD VDD VDD VDD 2 26 VDD VDD ICDVDD ICDVDD 45 58 RD0 SEG0 SEG0 RD0 3 27 RA5 SEG15 SEG15 RA5 46 59 RE7 SEG31 SEG31 RE7 4 28 RA4 SEG14 SEG14 RA4 47 60 RE6 COM3 COM3 RE6 5 29 RC1 T1OSC1 T1OSC1 RC1 48 61 RE5 COM2 COM2 RE5 6 30 RC0 T1OSC0 T1OSC0 RC0 49 62 RE4 COM1 COM1 RE4 7 31 RC6 TX/CK TX/CK RC6 50 63 RE3 COM0 COM0 RE3 8 RC7 RX/DT RX/DT RC7 79 51 RE2 VLCD3 BIAS3 RE2 9 32 Legend: Unshaded cells indicate where a perfect match between PIM and ICE pins and ports exists. Shaded cells indicate where differences between PIM and ICE ports and pins exist. Bold text indicates the PIM pins that are not connected to any ICE pins or ports.  2010 Microchip Technology Inc. DS51662C-page 41 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-17: PIC16F/LF1946/7 LCD CONNECTIONS COMPARISON PIC16F/LF 1946/7 ICE NC 21 NC NC 20 NC COM2 COM2 22 COM3 COM2 19 COM1 SEG34 SEG16 23 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 SEG35 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG14 SEG41 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG13 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 SEG12 SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG11 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG10 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG9 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG8 SEG24 SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG7 SEG25 SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG6 SEG26 SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 SEG5 SEG45 SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 SEG4 SEG44 SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 SEG3 SEG43 SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 SEG2 SEG42 SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 SEG1 SEG31 SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 SEG33 COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC LCD Pin # ICE PIC16F/LF1 946/7 COM1 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. N.C. SEGMENT CONFIGURATION FOR PIC16F/LF1946/7 DEVICES 21 N.C. FIGURE A-9: 20 Legend: LCD Pin # SEG35 SEG17 SEG14 SEG41 SEG18 SEG13 SEG19 SEG12 SEG20 SEG11 SEG21 SEG10 SEG22 SEG9 SEG23 SEG8 SEG24 SEG7 SEG25 SEG6 SEG26 SEG5 SEG45 SEG27 SEG44 SEG28 SEG4 SEG3 SEG43 SEG29 SEG2 SEG42 SEG30 SEG1 SEG31 SEG0 COM3 COM0 1 Legend: Note 1: N.C. SEG15 40 N.C. COM2 SEG16 COM1 SEG34 N.C. = No connection Disable SEG16, SEG17, SEG18, SEG27, SEG28, SEG29, SEG30 when the LCD module is enabled. © VL Electronics DS51662C-page 42  2010 Microchip Technology Inc. Board Technical Information TABLE A-18: PIC16F/LF1946/7 PORT AND PIN COMPARISON PIC16F/LF1946/7 Port PIC16F/LF1946/7 Pin ICE Pin ICE Port RA0 AN0 AN0 RA0 RA1 AN1 AN1 RA1 RC0 T1OSCO T1OSCO RC0 RC1 T1OSCI T1OSCI RC1 Legend:  2010 Microchip Technology Inc. RB0 RB0 RB0 RB0 RE3 COM0 COM0 RE3 RB5 COM1 COM1 RE4 RE5 COM2 COM2 RE5 RE6 COM3 COM3 RE6 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RE0 VLCD1 BIAS1 RE0 RE1 VLCD2 BIAS2 RE1 RE2 VLCD3 BIAS3 RE2 RC3 RC3 RC3 RC3 RC4 RC4 RC4 RC4 RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin/port on the PIM. DS51662C-page 43 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-19: PIC16F917 PIM Pin No. PIC16F917 Port 1 RC7 2 RD4 3 RD5 4 RD6 5 6 PIC16F917 Pin ICE Pin ICE Port ICE Pin No. RX/DT RX/DT RC7 51 SEG17 SEG17 RA3 17 SEG18 SEG18 RF0 18 SEG19 SEG19 RF1 19 RD7 SEG20 SEG20 RF2 20 VSS VSS VSS VSS VSS 7 VDD ICEVDD ICEVDD VDD 45 8 RB0 RB0 RB0 RB0 72 9 RB1 SEG1 SEG6 RD6 78 10 RB2 SEG2 SEG7 RD7 77 11 RB3 SEG3 SEG8 RB1 71 14 RB4 COM0 COM0 RE3 8 15 RB5 COM1 COM1 RE4 7 16 RB6 RB6 RB6 RB6 66 17 RB7 RB7 RB7 RB7 60 18 ICEMCLR ICEMCLR ICEMCLR ICEMCLR 20 19 RA0 AN0 AN0 RA0 42 20 RA1 AN1 AN1 RA1 41 21 RA2 COM2 COM2 RE5 6 22 RA3 SEG15 SEG15 RA5 15 23 RA4 SEG4 SEG9 RB2 4 24 RA5 SEG5 SEG10 RB3 5 25 RE0 SEG21 SEG21 RF3 21 26 RE1 SEG22 SEG22 RF4 22 27 RE2 SEG23 SEG23 RF5 23 28 VDD ICEVDD2 ICEVDD VDD 2 29 VSS VSS VSS VSS VSS 30 RA7 T1OSCI T1OSCI RC1 48 31 RA6 T1OSCO T1OSCO RC0 49 32 RC0 VLCD1 BIAS1 RE0 15 35 RC1 VLCD2 BIAS2 RE1 14 36 RC2 VLCD3 BIAS3 RE2 9 37 RC3 SEG6 SEG11 RB4 68 38 RD0 COM3 COM3 RE6 5 39 RD1 RD1 RC3 RC3 57 40 RD2 RD2 RC4 RC4 58 41 RD3 SEG16 SEG16 RA2 16 42 RC4 SEG11 SEG14 RA4 47 43 RC5 SEG10 SEG13 RC2 56 RC6 TX/CK TX/CK RC6 50 44 Legend: DS51662C-page 44 PIC16F917 PIM AND ICE PIN/PORT COMPARISON Unshaded cells indicate where a perfect match between PIM and ICE pins and ports exists. Shaded cells indicate where differences between PIM and ICE ports and pins exist. Bold text indicates the PIM pins that are not connected to any ICE pins or ports.  2010 Microchip Technology Inc. Board Technical Information TABLE A-20: PIC16F917 LCD CONNECTIONS COMPARISON PIC16F917 ICE Pin # Pin # ICE PIC16F917 NC 21 NC NC 20 NC COM2 COM2 22 COM3 COM2 19 COM1 COM1 SEG16 SEG16 23 X8,X6,X5,X7 X9,X11,X12,X10 18 SEG15 SEG15 SEG17 SEG17 24 X1,X3,X4,X2 X16,X14,X13,X15 17 SEG14 SEG11 SEG18 SEG18 25 -,F2,F1,F3 X17,X19,X20,X18 16 SEG13 SEG10 SEG19 SEG19 26 1A,1E,F4,1F -,X22,X21,- 15 SEG12 NC SEG20 SEG20 27 1B,1C,1D,1G 3B,3C,-,3G 14 SEG11 SEG6 SEG21 SEG21 28 2A,2E,2D,2F 4A,4E,4D,4F 13 SEG10 SEG5 SEG22 SEG22 29 2B,2C,COL,2G 4B,4C,DP1,4G 12 SEG9 SEG4 SEG23 SEG23 30 3A,3E,3D,3F 5A,5E,5D,5F 11 SEG8 SEG3 NC SEG24 31 S9,6G,6B,6C 5B,5C,-,5G 10 SEG7 SEG2 NC SEG25 32 6D,6F,6A,6E X23,X25,X26,X24 9 SEG6 SEG1 NC SEG26 33 X31,X33,X34,X32 S13,8G,8B,8C 8 SEG5 NC NC SEG27 34 -,X27,X35,X30 8D,8F,8A,8E 7 SEG4 NC NC SEG28 35 -,X28,X36,X29 DP2,7G,7B,7C 6 SEG3 NC NC SEG29 36 S1,S3,S4,S2 7D,7F,7A,7E 5 SEG2 NC NC SEG30 37 S6,-,-,S7 S11,-,-,- 4 SEG1 NC NC SEG31 38 S5,-,-S8 S12,-,-,S10 3 SEG0 NC COM3 COM3 39 COM4 COM1 2 COM0 COM0 NC 40 NC NC 1 NC Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. Bold text indicates the PIM pins that are not connected. SEGMENT CONFIGURATION FOR PIC16F914/917 DEVICES 20 21 N.C. FIGURE A-10: N.C. Legend: SEG16 COM2 SEG16 SEG17 SEG17 SEG15 SEG15 SEG14(1) SEG11 SEG18 SEG18 SEG13(1) SEG19 SEG19 SEG12(1) SEG20 SEG20 SEG11 SEG6 SEG21 SEG21 SEG10 SEG5 SEG22 SEG22 SEG9(1) SEG4 SEG23 SEG23 SEG8(1) SEG3 SEG24 SEG7(1) SEG25 SEG6 SEG26 SEG5 SEG27 SEG28 SEG4 SEG3 SEG29 SEG2 SEG30 SEG1 SEG31 SEG0(1) COM0 COM1 Legend: Note 1: SEG2 SEG1 N.C. 1 40 N.C. COM3 SEG10 N.C. = No connection = Only segments available to PIC16F914/917 devices Disable SEG0, SEG7, SEG8, SEG9, SEG12, and SEG14 when the LCD module is enabled. © VL Electronics  2010 Microchip Technology Inc. DS51662C-page 45 PICDEM™ LCD 2 Demonstration Kit User’s Guide TABLE A-21: PIC16F917 Port PIC16F917 Pin ICE Pin ICE Port RA0 AN0 AN0 RA0 RA1 AN1 AN1 RA1 RA6 T1OSCO T1OSCO RC0 RA7 T1OSCI T1OSCI RC1 RB0 Legend: A.3 PIC16F917 PIN AND PORT COMPARISON RB0 RB0 RB0 RB5 COM1 COM1 RE4 RB6 RB6 RB6 RB6 RB7 RB7 RB7 RB7 RC0 VLCD1 BIAS1 RE0 RC1 VLCD2 BIAS2 RE1 RC3 SEG6 SEG11 RB4 RC4 SEG11 SEG14 RA4 RC6 TX/CK TX/CK RC6 RC7 RX/DT RX/DT RC7 Unshaded cells indicate a perfect match between the PIM and the glass. Shaded cells indicate the pins that are remapped to the corresponding pin on the PIM. LED DISPLAY Two green LEDs are connected to RC3 and RC4 of U1A through the J14 pins, 1, 2 and 7, 8 (outer ends), respectively. One green LED is provided to determine whether there is power to the LCD 2 Demonstration Board (LED on) or not (LED off). A.4 Note 1: For the PIC18F85J90 and PIC18F87J90 PIM, the RG2 and RG3 pins are connected to RC3 and RC4 of U1A, respectively. 2: For the PIC16F17 PIM, the RD1 and RD2 pins are connected to RC3 and RC4 of U1A, respectively. 3: For the PIC18F8490 PIM, the RC3 and RD4 pins are connected to RC3 and RC4 of U1A, respectively CHARGE PUMP AND VLCAP For charge pump mode operation in PIC18F85J90 and PIC18F87J90 devices, it is required that RC3 and RC4 of U1A connect to charge pump capacitor C7 through the J14 pins, 3, 4 and 5, 6 (inner pins), respectively. A.5 RESISTIVE LADDER VERSUS CHARGE PUMP The switch, S6, allows the connection of either the resistor ladder or the capacitors to the BIAS pins to generate the BIAS voltages for the LCD operation. For the Charge Pump mode operation in PIC18F85J90 and PIC18F87J90 devices, it is required that the S6 switch is flipped towards C and the VLCAP is connected through the inner jumpers of J14. For the resistor ladder, S6 must be flipped towards R. The R45 potentiometer controls the contrast to the LCD in the Resistive Ladder mode. A.5.1 Jumper JP21 When jumper JP21 is on, the LCDBIAS0 is physically tied to ground. The jumper needs to be on for PIC18F85J90 and PIC18F87J90 devices when the bias voltages are generated through the resistor ladder. DS51662C-page 46  2010 Microchip Technology Inc. Board Technical Information A.6 OSCILLATOR OPTIONS The on-board firmware uses the internal RC oscillator running at 8 MHz. • Internal RC oscillator running at 8 MHz can be used. • Pads provided for user-furnished crystal/resonator (Y2) and two capacitors (C16 and C17). • Socket provided for a canned oscillator (Y3). This oscillator can be disabled by removing jumpers, JP9, JP11 and JP12. • 32.768 kHz (watch-type) crystal for Timer1 (Y1) is always connected to RC0 and RC1. A.7 RS-232 SERIAL PORT An RS-232 level shifting IC has been provided with all necessary hardware to support connection of an RS-232 host through the DB9 connector (PI). The port is configured as DCE and can be connected to a PC using a serial cable. A.8 REAL-TIME CLOCK This circuit allows the user to configure a PIC microcontroller for timekeeping using a 32.768 kHz clock crystal connected to Timer1 module’s T1OSO and T1OSI pins. A.9 SERIAL EEPROM A socket for a Microwire EEPROM is provided on the board to illustrate usage of the Synchronous mode of operation of the USART module. For its operation: • Jumpers, JP15 and JP16, should be connected. • In the jumper, J6, U9-CS should be connected with RB5. • In the jumper, J13, U9-ORG (pin 6) should be connected to GND. Note 1: For the PIC18F85J90 and PIC18F87J90 PIM, the RG2 and RG3 pins are connected to RC3 and RC4 of U1A, respectively. 2: For the PIC16F917 PIM, the RD1 and RD2 pins are connected to RC3 and RC4 of U1A, respectively. 3: For the PIC18F8490, PIC16F946 and PIC16F/LF/1946/7 PIMs, the RC3 and RC4 pins are connected to RC3 and RC4 of U1A, respectively. A.10 ANALOG INPUT A 10 k potentiometer is connected through a series of 100 resistors to AN0. The potentiometer can be adjusted from VCC to GND. The jumper, J11, should be connecting the potentiometer to AN0.  2010 Microchip Technology Inc. DS51662C-page 47 PICDEM™ LCD 2 Demonstration Kit User’s Guide A.11 TEMPERATURE SENSOR A 10 kTC thermistor (R11) is provided to sense the temperature. It is connected to AN1 (RA1) through the jumper, JP5. An optional unpopulated TC77-based circuit is provided to read the temperature serially using the USART module. The jumpers, JP15 and JP16, are to be connected and RA1 of U1A should be made digital to be used to enable TC77. Note 1: 2: For the PIC18F85J90 and PIC18F87J90 PIM, the RA2 pin is connected to RA1 of U1A and AN2 is used instead of AN1. For the PIC18F8490, PIC16F/LF/1946/7, PIC16F946, and PIC16F917 PIMs, the RA1 pin is connected to RA1 of U1A. A.12 SWITCHES Four switches provide the following functions for digital I/Os: • • • • S1 – Active-low switch connected to RB6. S2 – Active-low switch connected to RB6 and RB7. S3 – Active-low switch connected to RB6, RB7 and RA6. S4 – Active-low switch connected to RB6, RB7, RA6 and RA7. For this type of sensing, the jumpers, JP1, JP2, JP6, JP18, JP19, JP9 and JP10, should be connected and the potentiometer should be connected to AN0 through J11. Sensing should be done in the sequence, S1, S2, S3 and S4, only. Individual switch sensing is not allowed. Additionally, the four switches provide the following functions for analog input (AN0): • • • • S1 – AN0 will be approximately at VCC/2. S2 – AN0 will be approximately at VCC/3. S3 – AN0 will be approximately at VCC/5.2. S4 – AN0 will be approximately at VCC/7.7. For this type of sensing, the jumpers, JP1, JP2, JP6, JP18 and JP19, should not be connected and the SWT should be connected to AN0 through J11. A.13 ICD CONNECTOR By way of the modular connector (J37), the MPLAB ICD 2 can be connected for low-cost debugging. The ICD connector utilizes RB6/PGC and RB7/PGD of the microcontrollers for in-circuit debugging. DS51662C-page 48  2010 Microchip Technology Inc. Board Technical Information A.14 POWER SUPPLY There are four ways to supply power to the PICDEM LCD 2: • A 3V button cell (CR2032) can be plugged into BT1. • A 9V, 100 mA unregulated AC to DC supply can be plugged into J5. A power supply can be purchased through Microchip Technology (Part Number AC162039). • A 100 mA regulated DC supply of maximum +5V can be connected to the hooks provided. Note: There is one J15 jumper associated with the power supply circuit. This jumper must be correctly connected to select the required power supply. Refer to Figure A-11 for jumper setting examples. MPLAB ICD 2 users may use the ICD to power the target board to 5V, up to 200 mA, for the following devices only: PIC18F8490, PIC16F/LF/1946/7, PIC16F946 and PIC16F916. The PIC18F85J90 and PIC18F87J90 families of devices do not support this capability. The default power on the board is 5V. The board voltage can be varied based on resistors populated on the PIM in conjunction with the processor being used. FIGURE A-11: J15 POWER SUPPLY CIRCUIT SETTING EXAMPLES EXAMPLE A EXAMPLE B J15 J15 J15 1 2 1 2 1 2 3 4 3 4 3 4 5 6 5 6 5 6 VLCDBIAS = 3V, External Power a) EXAMPLE C External Supply with VLCDBIAS Regulated (Default): This is the recommended jumper setting to operate when using external supply. This configuration allows the VLCDBIAS to be regulated to 3V even if the VDD of the board is higher than 3V. Note: VLCDBIAS = Battery b) Battery Operation: This is the recommend jumper setting when operating on a battery. In this configuration, VLCDBIAS is directly connected to the battery voltage. VLCDBIAS = VCC c) External Supply with VLCDBIAS Unregulated: This is not recommended to use with on-board glass as voltage higher than 3V may damage the glass. If an external glass is connected to J2 and is capable of handling higher voltages, then this jumper setting allows VCC to connect directly to the VLCDBIAS when an external power supply is used. For all examples shown above, the voltage regulation on the VLCDBIAS for 3V is not required for the regular operation of the module or device. It is added here for additional protection for the glass since the board is capable of generating 3.3V or 5V depending on the PIM being used.  2010 Microchip Technology Inc. DS51662C-page 49 PICDEM™ LCD 2 Demonstration Kit User’s Guide A.14.1 Using the Adjustable Voltage Regulator The PICDEM LCD 2 board features an adjustable voltage regulator, the venerable LM317. It is U3 on the board, and can be recognized by the SO-223 package on the upper left side. Nearby, there is a header, J10, and two resistors, R25 and R26. R25 and R26 are used to set the output voltage of the LM317. By default, R25 = 1K and R26 = 330R, which results in an output voltage of 5.0V. The reason an adjustable voltage regulator is provided is so that the PICDEM LCD 2 Demonstration Board can be used with a wide range of LCD PIC microcontrollers. The PIC18FXXJ90 family of devices tolerates a maximum VDD of 3.6V, whereas the PIC18FXX90, PIC16F91X and PIC16F946 tolerate a maximum VDD of 5.5V. The adjustable voltage regulator allows a different VDD to be provided for PIC18FJ devices and PIC18F and PIC16F LCD devices. The switching between 3.6V and 5.5V parts is very convenient. The plug-in module boards are populated with the R101 and R102, appropriately, according to the processor module requirement which mates with the daughter board/emulator header that surrounds the ICE module (U1A). J10 on the PICDEM LCD 2 board is intended to connect with the 3-pin header on the plug-in module. This allows the resistors, R101 and R102, on the plug-in module to be connected in parallel to the resistors, R25 and R26. This way VDD can automatically be adjusted to the voltage appropriate to the part soldered onto the plug-in module. The plug-in module is prepopulated with the values shown in Table A-22: TABLE A-22: PIM PREPOPULATED VALUES Module R101 R102 VDD PIC18F87J90 Open 1.18K 3.3V PIC18F85J90 Open 1.18K 3.3V PIC18F8490 Open Open 5.0V PIC16F914/917 Open Open 5.0V PIC16F946 Open Open 5.0V PIC16F1946/7 Open Open 5.0V PIC16LF1946/7 Open 1.18K 3.3V For VDD = 3.3 volts, R101 can be left unpopulated and R102 can be 1.18K. (1% resistors are recommended for precise adjustment of VDD.) Now, let’s look at how to determine R101 and R102 if a different VDD is desired. First, it is a good idea to look at the data sheet for the LM317 to understand how the voltage is adjusted. We will not duplicate all the details here. The following equation is taken from an LM317 data sheet: EQUATION A-1: VOUT = VREF (1+ R2/R1) + IADJ * R2 IADJ is minimized by the LM317, so it can be assumed to be zero or at least very small. VREF =1.25V; it is the reference voltage developed by the LM317 between the output and adjustment terminal. That gives us the following equation: EQUATION A-2: VOUT = 1.25V(1+R2/R1) R2 = R25 || R102 = (R25* R102)/(R25+R102) R1 = R26 || R101.= (R26* R101)/(R26+R101) DS51662C-page 50  2010 Microchip Technology Inc. Board Technical Information As stated previously, R25 = 1K and R26 = 330. You can see that without R102 and R101, VOUT = 1.25V(1+ 1K/330R) = 5.04V. For a desired VOUT, first solve for R2, given R1 = R26 = 330R. Then, knowing R2 and R25, solve for R102. Determine the nearest available resistor value for R102 and recalculate the resulting VDD to make sure it does not exceed the maximum VDD for the part you will be using. Table A-23 shows values for R101 and R102 for different VDD values, assuming that R25 and R26 on the PICDEM LCD 2 Board are left as their default values of 1K and 330R. TABLE A-23: R101 AND R102 VDD VALUES VDD R101 R102 5V Open Open 3.6V Open 1.62K 3.3V Open 1.18K 3.0V Open 866R Recommended operating voltages for the various PIMs are: • • • • • • PIC18F85J90 and PIC18F87J90 families of devices – 3.3V PIC18F8490 family of devices – 5V PIC16F917/914 devices – 5V PIC16F946 – 5V (when operating on an external 9V DC supply) PIC16F1946/7 – 5V PIC16LF1946/7 – 3.3V A.14.2 Slide Switch (S6) The slide switch allows choosing the BIAS values, either generated by the resistor ladder, or by the capacitive charge pump. When S6 is switched to the left, the LCDBIAS pins of the microcontroller are connected to the resistor ladder. When S6 is switched to the right, the LCDBIAS pins of the microcontroller are connected to the capacitor network.  2010 Microchip Technology Inc. DS51662C-page 51 PICDEM™ LCD 2 Demonstration Kit User’s Guide A.15 BOARD LAYOUT AND SCHEMATICS The following figures show the parts layout (silkscreen) and schematics for the PICDEM LCD 2 board. FIGURE A-12: DS51662C-page 52 PICDEM™ LCD 2 DEMONSTRATION BOARD PARTS LAYOUT (SILKSCREEN)  2010 Microchip Technology Inc.  2010 Microchip Technology Inc. VCC VCC VCC 1 F 2 4 5 6 14 1 9 .1 F 11 .1 F 8 13 VCC 15 3 V+ 10 EN INVALID 12 FORCEON FORCEOFF 16 V- 7 GND C1+ C1C2+ C2- VSS VCC .1 F VDD .1 F .1 F .1 F FIGURE A-13: VCC VCC VCC VCC Board Technical Information PICDEM™ LCD 2 SCHEMATIC SHEET 1 OF 3 DS51662C-page 53 PICDEM™ LCD 2 Demonstration Kit User’s Guide 32 kHz VDD VSS VCC VCC .1 F VCC .1 F .1 F .1 F .1 F PICDEM™ LCD 2 SCHEMATIC SHEET 2 OF 3 VCC FIGURE A-14: VDD VCC VSS VSS VDD VCC AVSS VCC VSS .1 F VCC VCC VCC VDD AVDD DS51662C-page 54  2010 Microchip Technology Inc. Board Technical Information PICDEM™ LCD 2 SCHEMATIC SHEET 3 OF 3 VOUT .1 F 220 F VIN VIN 100 F VOUT VCC .1 F 1 F 1 F .47 F .47 F .47 F .47 F FIGURE A-15:  2010 Microchip Technology Inc. DS51662C-page 55 PICDEM™ LCD 2 Demonstration Kit User’s Guide A.16 PIM LAYOUT AND SCHEMATICS The following figures show the layout (silkscreen) for the individual PIMs. FIGURE A-16: PIC18F65J90 AND PIC18F85J90 PIM LAYOUT PIC18F65J90 PIC18F85J90 PICDEM™ LCD 2 FIGURE A-17: PIC16F914/917 PIM LAYOUT PIC16F917/914 PICDEM™ LCD 2 DS51662C-page 56 M  2010 Microchip Technology Inc. Board Technical Information FIGURE A-18: PIC16F946 PIM LAYOUT PIC16F946 PICDEM™ LCD 2 FIGURE A-19: PIC16F/LF1946/7 PIM LAYOUT PICDEM™ LCD 2 PIC16F/LF1946 PIC16F/LF1947  2010 Microchip Technology Inc. DS51662C-page 57 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE A-20: PIC18F6490/8490 PIM LAYOUT PICDEM™ LCD 2 PIC18F6490 PIC18F8490 FIGURE A-21: DS51662C-page 58 PIC18F87J90 PIM LAYOUT  2010 Microchip Technology Inc. Board Technical Information FIGURE A-22: PICDEM™ LCD 2 PIC16F914/917 PIM SCHEMATIC .1 F .1 F VSS VSS PIC16F917 VSS PICDEM LCD 2 PIC16F/LF1946/7 64-PIN PIM SCHEMATIC VDD FIGURE A-23: VSS VSS PIC16F/LF1946 VDD PIC16F/LF1947  2010 Microchip Technology Inc. AVDD AVSS VSS VDD VDD DS51662C-page 59 PICDEM™ LCD 2 Demonstration Kit User’s Guide VSS PICDEM™ LCD 2 PIC16F946 PIM SCHEMATIC VDD FIGURE A-24: PIC16F946 VSS VSS VDD AVDD AVSS VSS PICDEM™ LCD 2 PIC18F6490 64-PIN PIM SCHEMATIC VDD FIGURE A-25: VSS VDD VDD PIC18F6490 VSS VSS VDD VDD VSS AVDD DS51662C-page 60 AVSS VDD  2010 Microchip Technology Inc. Board Technical Information VSS PICDEM™ LCD 2 PIC18F8490 80-PIN PIM SCHEMATIC VDD FIGURE A-26: PIC18F8490 VSS VSS VDD VDD VSS VSS PICDEM™ LCD 2 PIC18F6XJ90 64-PIN PIM SCHEMATIC VDD FIGURE A-27: AVSS AVDD VDD PIC18F6XJ90 VSS VSS VDDCORE/VCAP VDD VSS AVDD  2010 Microchip Technology Inc. AVSS VDD DS51662C-page 61 PICDEM™ LCD 2 Demonstration Kit User’s Guide FIGURE A-28: PICDEM™ LCD 2 PIC18F87J90 80-PIN PIM SCHEMATIC PIC18F87FJ90 DS51662C-page 62  2010 Microchip Technology Inc. Board Technical Information VSS PICDEM™ LCD 2 PIC18F85J90 80-PIN PIM SCHEMATIC VDD FIGURE A-29: PIC18F85J90 VSS VSS VDDCORE/VCAP VDD VSS AVDD  2010 Microchip Technology Inc. AVSS VDD DS51662C-page 63 PICDEM™ LCD 2 Demonstration Kit User’s Guide NOTES: DS51662C-page 64  2010 Microchip Technology Inc. PICDEM™ LCD 2 DEMONSTRATION KIT USER’S GUIDE Index A Analog Input............................................................. 47 B Board ....................................................................... 11 C Charge Pump and Software Contrast ...................... 17 Clock ........................................................................ 17 Customer Notification Service.................................... 8 Customer Support ...................................................... 9 D Demonstration Board. See Board Demonstration Programs. See Sample Programs. Documentation Conventions ........................................................ 6 Layout ................................................................. 5 PIC18XXXX Demo Program.................................................. 17 PICDEM LCD 2 Board Hardware .......................................................... 23 PICDEM LCD 2 Board. See Board PICDEM LCD 2 Demo Board................................... 12 PICDEM LCD 2 Hardware (Graphic) ....................... 13 PICDEM LCD 2 Kit. See Kit Components. PICDEM LCD 2 Stand-Alone Board......................... 15 Power Supply.................................................... 15 PICDEM LCD2 Board Power Supply.................................................... 49 Processors ............................................................... 25 Push Buttons. See Switches. R H Reading, Recommended ........................................... 7 Real-Time Clock....................................................... 47 RS-232 ............................................................... 12, 47 Hardware Features .................................................. 12 S I Sample Devices ....................................................... 13 Sample PIM.............................................................. 11 Sample Programs .............................................. 11, 13 Serial EEPROM ....................................................... 47 Switches................................................................... 12 Analog Input...................................................... 48 Digital I/O .......................................................... 48 Internet Address......................................................... 8 K Kit Components ....................................................... 11 L LCD Digit Description................................................ 27 Display Definition .............................................. 27 SEGx and COMx .............................................. 28 LCD Display ............................................................. 26 LEDs Green Display ................................................... 46 Green Power..................................................... 46 T Temperature Sensor ................................................ 48 Thermometer............................................................ 17 U Using the Demo Software ........................................ 17 V M Voltmeter.................................................................. 17 Microchip Internet Web Site ....................................... 8 MPASM Assembler .................................................. 15 MPLAB C18 C Compiler .......................................... 15 MPLAB ICD 2................................................11, 16, 48 MPLAB ICE .........................................................11, 16 MPLAB IDE .............................................................. 15 W Warranty Registration ................................................ 7 WWW Address........................................................... 8 O Oscillator Options..................................................... 47 Oscillator Selection .................................................. 16 P Part Numbers ........................................................... 25 PIC16XXXX Demo ................................................................ 17  2010 Microchip Technology Inc. DS51662C-page 65 Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820 China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 08/04/10 DS51662C-page 66  2010 Microchip Technology Inc.