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PIC16F720-E/ML 数据表(PDF) 34 Page - Microchip Technology |
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PIC16F720-E/ML 数据表(HTML) 34 Page - Microchip Technology |
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34 / 244 page  PIC16F/LF720/721 DS41430A-page 34 2010 Microchip Technology Inc. TABLE 3-6: INITIALIZATION CONDITION FOR REGISTERS Register Address Power-on Reset/ Brown-out Reset(1) MCLR Reset/ WDT Reset Wake-up from Sleep through Interrupt/Time-out W— xxxx xxxx uuuu uuuu uuuu uuuu INDF 00h/80h/ 100h/180h xxxx xxxx xxxx xxxx uuuu uuuu TMR0 01h/101h xxxx xxxx uuuu uuuu uuuu uuuu PCL 02h/82h/ 102h/182h 0000 0000 0000 0000 PC + 1 (3) STATUS 03h/83h/ 103h/183h 0001 1xxx 000q quuu (4) uuuq quuu (4) FSR 04h/84h/ 104h/184h xxxx xxxx uuuu uuuu uuuu uuuu PORTA 05h --xx xxxx --xx xxxx --uu uuuu PORTB 06h xxxx ---- xxxx ---- uuuu ---- PORTC 07h xxxx xxxx xxxx xxxx uuuu uuuu PCLATH 0Ah/8Ah/ 10Ah/18Ah ---0 0000 ---0 0000 ---u uuuu INTCON 0Bh/8Bh/ 10Bh/18Bh 0000 000x 0000 000x uuuu uuuu (2) PIR1 0Ch 0000 0000 0000 0000 uuuu uuuu (2) TMR1L 0Eh xxxx xxxx uuuu uuuu uuuu uuuu TMR1H 0Fh xxxx xxxx uuuu uuuu uuuu uuuu T1CON 10h 0000 -0-0 0000 -0-0 uuuu -u-u TMR2 11h 0000 0000 0000 0000 uuuu uuuu T2CON 12h -000 0000 -000 0000 -uuu uuuu SSPBUF 13h xxxx xxxx xxxx xxxx uuuu uuuu SSPCON 14h 0000 0000 0000 0000 uuuu uuuu CCPR1L 15h xxxx xxxx xxxx xxxx uuuu uuuu CCPR1H 16h xxxx xxxx xxxx xxxx uuuu uuuu CCP1CON 17h --00 0000 --00 0000 --uu uuuu RCSTA 18h 0000 000x 0000 000x uuuu uuuu TXREG 19h 0000 0000 0000 0000 uuuu uuuu RCREG 1Ah 0000 0000 0000 0000 uuuu uuuu ADRES 1Eh xxxx xxxx uuuu uuuu uuuu uuuu ADCON0 1Fh --00 0000 --00 0000 --uu uuuu OPTION_REG 81h/181h 1111 1111 1111 1111 uuuu uuuu TRISA 85h --11 -111 --11 -111 --uu -uuu TRISB 86h 1111 ---- 1111 ---- uuuu ---- TRISC 87h 1111 1111 1111 1111 uuuu uuuu PIE1 8Ch 0000 0000 0000 0000 uuuu uuuu Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’, q = value depends on condition. Note 1: If VDD goes too low, Power-on Reset will be activated and registers will be affected differently. 2: One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up). 3: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h). 4: See Table 3-8 for Reset value for specific condition. 5: If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u. |
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