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PIC16F-E/ML 数据表(PDF) 87 Page - Microchip Technology |
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PIC16F-E/ML 数据表(HTML) 87 Page - Microchip Technology |
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87 / 178 page ![]() © 2007 Microchip Technology Inc. DS40044F-page 85 PIC16F627A/628A/648A TABLE 12-9: REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION FIGURE 12-8: SYNCHRONOUS TRANSMISSION FIGURE 12-9: SYNCHRONOUS TRANSMISSION (THROUGH TXEN) Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR Value on all other Resets 0Ch PIR1 EEIF CMIF RCIF TXIF — CCP1IF TMR2IF TMR1IF 0000 -000 0000 -000 18h RCSTA SPEN RX9 SREN CREN ADEN FERR OERR RX9D 0000 000x 0000 000x 19h TXREG USART Transmit Data Register 0000 0000 0000 0000 8Ch PIE1 EEIE CMIE RCIE TXIE — CCP1IE TMR2IE TMR1IE 0000 -000 0000 -000 98h TXSTA CSRC TX9 TXEN SYNC — BRGH TRMT TX9D 0000 -010 0000 -010 99h SPBRG Baud Rate Generator Register 0000 0000 0000 0000 Legend: x = unknown, - = unimplemented, read as ‘0’. Shaded cells are not used for synchronous master transmission. bit 0 bit 1 bit 7 Word 1 Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4 Q3Q4 Q1Q2Q3Q4 Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4 bit 2 bit 0 bit 1 bit 7 RB1/RX/DT pin RB2/TX/CK pin Write to TXREG Reg TXIF bit (Interrupt Flag) TRMT TXEN bit ‘1’ ‘1’ Word 2 TRMT bit Write Word 1 Write Word 2 Note: Sync Master Mode; SPBRG = 0. Continuous transmission of two 8-bit words. RB1/RX/DT pin RB2/TX/CK pin Write to TXREG Reg TXIF bit TRMT bit bit 0 bit 1 bit 2 bit 6 bit 7 TXEN bit |
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