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PIC18F23K20-E/ML Datasheet(PDF) 245 Page - Microchip Technology |
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PIC18F23K20-E/ML Datasheet(HTML) 245 Page - Microchip Technology |
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245 / 456 page  2010 Microchip Technology Inc. DS41303G-page 245 PIC18F2XK20/4XK20 FIGURE 18-5: ASYNCHRONOUS RECEPTION TABLE 18-2: REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset Values on page INTCON GIE/GIEH PEIE/GIEL TMR0IE INT0IE RBIE TMR0IF INT0IF RBIF 59 PIR1 PSPIF(1) ADIF RCIF TXIF SSPIF CCP1IF TMR2IF TMR1IF 62 PIE1 PSPIE(1) ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 62 IPR1 PSPIP(1) ADIP RCIP TXIP SSPIP CCP1IP TMR2IP TMR1IP 62 RCSTA SPEN RX9 SREN CREN ADDEN FERR OERR RX9D 61 RCREG EUSART Receive Register 61 TRISC TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 62 TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D 61 BAUDCON ABDOVF RCIDL DTRXP CKTXP BRG16 — WUE ABDEN 61 SPBRGH EUSART Baud Rate Generator Register, High Byte 61 SPBRG EUSART Baud Rate Generator Register, Low Byte 61 Legend: — = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous reception. Note 1: Reserved in PIC18F2XK20 devices; always maintain these bits clear. Start bit bit 7/8 bit 1 bit 0 bit 7/8 bit 0 Stop bit Start bit Start bit bit 7/8 Stop bit RX/DT pin Reg Rcv Buffer Reg Rcv Shift Read Rcv Buffer Reg RCREG RCIF (Interrupt Flag) OERR bit CREN Word 1 RCREG Word 2 RCREG Stop bit Note: This timing diagram shows three words appearing on the RX input. The RCREG (receive buffer) is read after the third word, causing the OERR (overrun) bit to be set. RCIDL |
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