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| Registro | Bits clave | Uso |
|---|
| WREG | 8 | Acumulador |
| STATUS | Z,C,DC,OV,N | Banderas ALU |
| BSR | 0-3 | Banco memoria |
| INTCON | GIE, PEIE, TMR0IF | Interrupciones globales |
| Registro | Funcion |
|---|
| TRISx | 1=in, 0=out |
| PORTx | Leer pines |
| LATx | Escribir salida |
| Timer | Control | Contador |
|---|
| Timer0 | T0CON | TMR0L/H |
| Timer1 | T1CON | TMR1L/H |
| Timer2 | T2CON | TMR2, PR2 |
| Registro | Funcion |
|---|
| ADCON0 | Canal, GO/DONE, ADON |
| ADCON1 | PCFG analogico/digital |
| ADCON2 | ADFM, ADCS reloj |
| ADRESH/L | Resultado 10 bit |
| Registro | Funcion |
|---|
| TXSTA | TXEN, BRGH |
| RCSTA | SPEN, CREN |
| SPBRG | Baudios |
| TXREG/RCREG | Datos |
| Registro | Funcion |
|---|
| CCP1CON | Modo CCP/PWM |
| CCPR1L | Duty cycle |
| PR2 | Periodo PWM |