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PIC18F44J10-E/ML bảng dữ liệu(PDF) 200 Page - Microchip Technology |
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PIC18F44J10-E/ML bảng dữ liệu(HTML) 200 Page - Microchip Technology |
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200 / 358 page ![]() PIC18F45J10 FAMILY DS39682C-page 198 Preliminary © 2007 Microchip Technology Inc. FIGURE 16-4: ASYNCHRONOUS TRANSMISSION FIGURE 16-5: ASYNCHRONOUS TRANSMISSION (BACK TO BACK) TABLE 16-5: REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION Word 1 Word 1 Transmit Shift Reg Start bit bit 0 bit 1 bit 7/8 Write to TXREG BRG Output (Shift Clock) TX (pin) TXIF bit (Transmit Buffer Reg. Empty Flag) TRMT bit (Transmit Shift Reg. Empty Flag) 1 TCY Stop bit Word 1 Transmit Shift Reg. Write to TXREG BRG Output (Shift Clock) TX (pin) TXIF bit (Interrupt Reg. Flag) TRMT bit (Transmit Shift Reg. Empty Flag) Word 1 Word 2 Word 1 Word 2 Stop bit Start bit Transmit Shift Reg. Word 1 Word 2 bit 0 bit 1 bit 7/8 bit 0 Note: This timing diagram shows two consecutive transmissions. 1 TCY 1 TCY Start bit 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 43 PIR1 PSPIF(1) ADIF RCIF TXIF SSP1IF CCP1IF TMR2IF TMR1IF 45 PIE1 PSPIE(1) ADIE RCIE TXIE SSP1IE CCP1IE TMR2IE TMR1IE 45 IPR1 PSPIP(1) ADIP RCIP TXIP SSP1IP CCP1IP TMR2IP TMR1IP 45 RCSTA SPEN RX9 SREN CREN ADDEN FERR OERR RX9D 45 TXREG EUSART Transmit Register 45 TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D 45 BAUDCON ABDOVF RCIDL — SCKP BRG16 — WUE ABDEN 45 SPBRGH EUSART Baud Rate Generator Register High Byte 45 SPBRG EUSART Baud Rate Generator Register Low Byte 45 Legend: — = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous transmission. Note 1: These bits are not implemented on 28-pin devices and should be read as ‘0’. |
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