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PIC16F872/SP Datasheet(PDF) 102 Page - Microchip Technology |
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PIC16F872/SP Datasheet(HTML) 102 Page - Microchip Technology |
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102 / 160 page  PIC16F872 DS30221A-page 102 Preliminary © 1999 Microchip Technology Inc. TABLE 11-6: INITIALIZATION CONDITIONS FOR ALL REGISTERS Register Power-on Reset, Brown-out Reset MCLR Resets WDT Reset Wake-up via WDT or Interrupt W xxxx xxxx uuuu uuuu uuuu uuuu INDF N/A N/A N/A TMR0 xxxx xxxx uuuu uuuu uuuu uuuu PCL 0000h 0000h PC + 1 (2) STATUS 0001 1xxx 000q quuu (3) uuuq quuu (3) FSR xxxx xxxx uuuu uuuu uuuu uuuu PORTA --0x 0000 --0u 0000 --uu uuuu PORTB xxxx xxxx uuuu uuuu uuuu uuuu PORTC xxxx xxxx uuuu uuuu uuuu uuuu PCLATH ---0 0000 ---0 0000 ---u uuuu INTCON 0000 000x 0000 000u uuuu uuuu (1) PIR1 r0rr 0000 r0rr 0000 rurr uuuu (1) PIR2 -r-0 0--r -r-0 0--r -r-u u--r (1) TMR1L xxxx xxxx uuuu uuuu uuuu uuuu TMR1H xxxx xxxx uuuu uuuu uuuu uuuu T1CON --00 0000 --uu uuuu --uu uuuu TMR2 0000 0000 0000 0000 uuuu uuuu T2CON -000 0000 -000 0000 -uuu uuuu SSPBUF xxxx xxxx uuuu uuuu uuuu uuuu SSPCON 0000 0000 0000 0000 uuuu uuuu CCPR1L xxxx xxxx uuuu uuuu uuuu uuuu CCPR1H xxxx xxxx uuuu uuuu uuuu uuuu CCP1CON --00 0000 --00 0000 --uu uuuu ADRESH xxxx xxxx uuuu uuuu uuuu uuuu ADCON0 0000 00-0 0000 00-0 uuuu uu-u OPTION_REG 1111 1111 1111 1111 uuuu uuuu TRISA --11 1111 --11 1111 --uu uuuu TRISB 1111 1111 1111 1111 uuuu uuuu TRISC 1111 1111 1111 1111 uuuu uuuu PIE1 r0rr 0000 r0rr 0000 rurr uuuu PIE2 -r-0 0--r -r-0 0--r -r-u u--r PCON ---- --qq ---- --uu ---- --uu PR2 1111 1111 1111 1111 1111 1111 SSPADD 0000 0000 0000 0000 uuuu uuuu SSPSTAT --00 0000 --00 0000 --uu uuuu ADRESL xxxx xxxx uuuu uuuu uuuu uuuu ADCON1 0--- 0000 0--- 0000 u--- uuuu EEDATA 0--- 0000 0--- 0000 u--- uuuu EEADR xxxx xxxx uuuu uuuu uuuu uuuu EEDATH xxxx xxxx uuuu uuuu uuuu uuuu EEADRH xxxx xxxx uuuu uuuu uuuu uuuu EECON1 x--- x000 u--- u000 u--- uuuu EECON2 ---- ---- ---- ---- ---- ---- Legend: u = unchanged, x = unknown, r = reserved, - = unimplemented bit, read as ’0’, q = value depends on condition, r = reserved maintain clear. Note 1: One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up). 2: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h). 3: See Table 11-5 for reset value for specific condition. |
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