<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd"> <html lang="en"> <head> <title>PIC18C452</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link rel="stylesheet" type="text/css" href="main.css"> </head> <body> <ul class="classMenu"> <li><a href="index.html">All</a></li> <li><a href="enhanced-mcus.html">Enhanced</a></li> <li><a href="extended-mcus.html">Extended</a></li> <li><a href="regular-mcus.html">Regular</a></li> <li><a href="12-bits-mcus.html">12 bits</a></li> <li><a href="14-bits-mcus.html">14 bits</a></li> <li><a href="16-bits-mcus.html">16 bits</a></li> <li><a href="mcus-by-ram-size.html">by RAM size</a></li> <li><a href="mcus-by-rom-size.html">by ROM size</a></li> <li><a href="mcus-by-eeprom-size.html">by EEPROM size</a></li> </ul> <ul class="tabs"> <li><a href="PIC18C452-feat.html">Features</a></li> <li class="selected"><a href="PIC18C452-conf.html">Configuration Bits</a></li> <li><a href="PIC18C452-ram.html">RAM map</a></li> <li><a href="PIC18C452-sfr.html">SFR map</a></li> </ul> <table class="configList"> <tr><th colspan=5 class="confTableName">PIC18C452</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG1L (address:0x300000, mask:0xFF)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">CP -- Code Protection bits</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">CP = ON</td> <td class="confSwValue">0x00</td> <td class="confSwExpl">All of program memory code protected.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">CP = OFF</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">Program memory code protection off.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG1H (address:0x300001, mask:0xE7)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">OSC -- Oscillator Selection bits</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = LP</td> <td class="confSwValue">0xF8</td> <td class="confSwExpl">LP oscillator.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = XT</td> <td class="confSwValue">0xF9</td> <td class="confSwExpl">XT oscillator.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = HS</td> <td class="confSwValue">0xFA</td> <td class="confSwExpl">HS oscillator.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = RC</td> <td class="confSwValue">0xFB</td> <td class="confSwExpl">RC oscillator.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = EC</td> <td class="confSwValue">0xFC</td> <td class="confSwExpl">EC oscillator w/OSC2 configured as divide-by-4 clock output.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = ECIO</td> <td class="confSwValue">0xFD</td> <td class="confSwExpl">EC oscillator w/OSC2 configured as RA6.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = HSPLL</td> <td class="confSwValue">0xFE</td> <td class="confSwExpl">HS oscillator with PLL enabled/Clock frequency = (4 x FOSC).</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSC = RCIO</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">RC oscillator w/OSC2 configured as RA6.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">OSCS -- Oscillator System Clock Switch Enable bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSCS = ON</td> <td class="confSwValue">0xDF</td> <td class="confSwExpl">Oscillator system clock switch option is enabled (oscillator switching is enabled).</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">OSCS = OFF</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">Oscillator system clock switch option is disabled (main oscillator is source).</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG2L (address:0x300002, mask:0x0F)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">PWRT -- Power-up Timer Enable bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">PWRT = ON</td> <td class="confSwValue">0xFE</td> <td class="confSwExpl">PWRT enabled.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">PWRT = OFF</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">PWRT disabled.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">BOR -- Brown-out Reset Enable bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">BOR = OFF</td> <td class="confSwValue">0xFD</td> <td class="confSwExpl">Brown-out Reset disabled.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">BOR = ON</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">Brown-out Reset enabled.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">BORV -- Brown-out Reset Voltage bits</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">BORV = 45</td> <td class="confSwValue">0xF3</td> <td class="confSwExpl">VBOR set to 4.5V.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">BORV = 42</td> <td class="confSwValue">0xF7</td> <td class="confSwExpl">VBOR set to 4.2V.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">BORV = 27</td> <td class="confSwValue">0xFB</td> <td class="confSwExpl">VBOR set to 2.7V.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">BORV = 25</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">VBOR set to 2.5V.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG2H (address:0x300003, mask:0x0F)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">WDT -- Watchdog Timer Enable bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDT = OFF</td> <td class="confSwValue">0xFE</td> <td class="confSwExpl">WDT disabled (control is placed on the SWDTEN bit).</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDT = ON</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">WDT enabled.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">WDTPS -- Watchdog Timer Postscale Select bits</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 1</td> <td class="confSwValue">0xF1</td> <td class="confSwExpl">1:1.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 2</td> <td class="confSwValue">0xF3</td> <td class="confSwExpl">1:2.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 4</td> <td class="confSwValue">0xF5</td> <td class="confSwExpl">1:4.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 8</td> <td class="confSwValue">0xF7</td> <td class="confSwExpl">1:8.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 16</td> <td class="confSwValue">0xF9</td> <td class="confSwExpl">1:16.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 32</td> <td class="confSwValue">0xFB</td> <td class="confSwExpl">1:32.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 64</td> <td class="confSwValue">0xFD</td> <td class="confSwExpl">1:64.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">WDTPS = 128</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">1:128.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG3H (address:0x300005, mask:0x01)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">CCP2MX -- CCP2 Mux bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">CCP2MX = OFF</td> <td class="confSwValue">0xFE</td> <td class="confSwExpl">CCP2 input/output is multiplexed with RB3.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">CCP2MX = ON</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">CCP2 input/output is multiplexed with RC1.</td> <td class="vMargin"></td> </tr> <tr class="confGap"><td></td></tr> <tr><th colspan=4 class="configWord">CONFIG4L (address:0x300006, mask:0x03)</th></tr> <tr class="confGap"><td></td></tr> <tr><th colspan=3 class="confOptName">STVR -- Stack Full/Underflow Reset Enable bit</th></tr> <tr> <td class="vMargin"></td> <td class="confSwName">STVR = OFF</td> <td class="confSwValue">0xFE</td> <td class="confSwExpl">Stack Full/Underflow will not cause RESET.</td> <td class="vMargin"></td> </tr> <tr> <td class="vMargin"></td> <td class="confSwName">STVR = ON</td> <td class="confSwValue">0xFF</td> <td class="confSwExpl">Stack Full/Underflow will cause RESET.</td> <td class="vMargin"></td> </tr> </table> <div class="legendContainer"> <p class="srcInfo">This page generated automatically by the <a href="https://sourceforge.net/p/gputils/code/HEAD/tree/trunk/scripts/tools/device-help.pl"><em>device-help.pl</em></a> program (2013-05-17 07:55:36 UTC) from the <em>8bit_device.info</em> file (rev: 1.13) of <em>mpasmx</em> and from the <a href="http://gputils.sourceforge.net#Download">gputils</a> source package (rev: svn 979:980). The <em>mpasmx</em> is included in the <a href="http://www.microchip.com/pagehandler/en-us/family/mplabx">MPLAB X</a>.</p> </div> </body> </html>