16f84a CPU configuration

Each attribute in the configuration table below has two or more possible values associated with it.

e.g. the watchdog attribute (labelled field C ) has the possible values

one and only one of these values must be specified when configuring the CPU

The 16f84a CPU has 4 configuration attributes (labelled field A to D in the table below). The attributes specific to the 16f84a CPU are defined in the file hwreg-p16f84a.h To correctly configure the 16f84a CPU each attribute must be set to a valid value. This is done by using one "pragma cpu_config" statement per attribute. A valid configuration for 16f84a would look like: 

e.g.
	include "hwreg-p16f84a.h"

	pragma cpu_config CFG_CP_ON
	pragma cpu_config CFG_PWRTE_ON
	pragma cpu_config CFG_WDT_ON
	pragma cpu_config CFG_RC_OSC

NOTE: All attributes for a given processor must be specified, attributes for different processors may not be mixed.

Field
Attribute
XCSB value
Description
A
 Program Memory Code Protect CFG_CP_ON program memory code protect on
CFG_CP_OFF program memory code protect off
B
 Power-Up Timer CFG_PWRTE_ON power-up timer enable
CFG_PWRTE_OFF power-up timer disable
C
 Watchdog timer CFG_WDT_ON watchdog timer enable
CFG_WDT_OFF watchdog timer disable
D
 Oscillator CFG_RC_OSC Resistor / Capacitor (RC) oscillator
CFG_HS_OSC High Speed Crystal / Resonator (HS) oscillator
CFG_XT_OSC Crystal / Resonator (XT) oscillator
CFG_LP_OSC Low Power Crystal (LP) oscillator