All Enhanced Extended Regular 12 bits 14 bits 16 bits RAM
size ROM
size EEPROM
size Common
SFRs
Features Configuration Bits RAM map SFR map

PIC16F721
CONFIG1 (address:0x2007, mask:0x137B, default:0x137B)
FOSC -- Oscillator Selection bits (bitmask:0x0003)
FOSC = INTOSCIO | 0x3FFC | INTOSCIO oscillator: I/O function on RA4/CLKO pin, I/O function on RA5/CLKI.
FOSC = INTOSCCLK | 0x3FFD | INTOSC oscillator: CLKO function on RA4/CLKO pin, I/O function on RA5/CLKI.
FOSC = ECIO | 0x3FFE | EC oscillator: I/O function on RA4/CLKO pin, CLKI on RA5/CLKI.
FOSC = ECCLK | 0x3FFF | EC oscillator: CLKO function on RA4/CLKO pin, CLKI on RA5/CLKI.
WDTE -- Watchdog Timer Enable bit (bitmask:0x0008)
WDTE = OFF | 0x3FF7 | WDT disabled.
WDTE = ON | 0x3FFF | WDT enabled.
PWRTE -- Power-up Timer Enable bit (bitmask:0x0010)
PWRTE = ON | 0x3FEF | PWRT enabled.
PWRTE = OFF | 0x3FFF | PWRT disabled.
MCLRE -- RA3/MCLR/VPP Pin Function Select bit (bitmask:0x0020)
MCLRE = OFF | 0x3FDF | RA3/MCLR/VPP pin function is digital input; MCLR internally disabled; Weak pull-up disabled.
MCLRE = ON | 0x3FFF | RA3/MCLR/VPP pin function is MCLR; Weak pull-up enabled.
CP -- Flash Program Memory Code Protection bit (bitmask:0x0040)
CP = ON | 0x3FBF | 0000h to 0FFFh code protection on.
CP = OFF | 0x3FFF | Code protection off.
BOREN -- Brown-out Reset Enable bits (bitmask:0x0300)
BOREN = OFF | 0x3CFF | Brown-out Reset disabled (Preconditioned State).
BOREN = NSLEEP | 0x3EFF | Brown-out Reset enabled during operation and disabled in Sleep.
BOREN = ON | 0x3FFF | Brown-out Reset enabled.
PLLEN -- INTOSC PLLEN Enable Bit (bitmask:0x1000)
PLLEN = OFF | 0x2FFF | INTOSC Frequency is 500 kHz.
PLLEN = ON | 0x3FFF | INTOSC Frequency is 16 MHz (32x).
CONFIG2 (address:0x2008, mask:0x0003, default:0x0003)
WRTEN -- Flash memory self-write protection bits (bitmask:0x0003)
WRTEN = FULL | 0x3FFC | 0h to FFFh of flash memory write protected, no address may be modified.
WRTEN = HALF | 0x3FFD | 0h to 7FFh of flash memory write protected, 800h to FFFh may be modified.
WRTEN = BOOT | 0x3FFE | 0h to 1FFh of flash memory write protected, 200h to FFFh may be modified.
WRTEN = OFF | 0x3FFF | Write protection off.

This page generated automatically by the device-help.pl program (2022-01-30 15:56:09 UTC) from the 8bit_device.info file (rev: 1.44) of mpasmx and from the gputils source package (rev: svn Unversioned directory). The mpasmx is included in the MPLAB X.