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PIC16F84A-10/SS Datasheet(PDF) 42 Page - Microchip Technology |
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PIC16F84A-10/SS Datasheet(HTML) 42 Page - Microchip Technology |
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42 / 124 page  PIC16F8X DS30430C-page 42 © 1998 Microchip Technology Inc. TABLE 8-3 RESET CONDITION FOR PROGRAM COUNTER AND THE STATUS REGISTER Condition Program Counter STATUS Register Power-on Reset 000h 0001 1xxx MCLR Reset during normal operation 000h 000u uuuu MCLR Reset during SLEEP 000h 0001 0uuu WDT Reset (during normal operation) 000h 0000 1uuu WDT Wake-up PC + 1 uuu0 0uuu Interrupt wake-up from SLEEP PC + 1 (1) uuu1 0uuu Legend: u = unchanged, x = unknown. Note 1: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h). TABLE 8-4 RESET CONDITIONS FOR ALL REGISTERS Register Address Power-on Reset MCLR Reset during: – normal operation – SLEEP WDT Reset during nor- mal operation Wake-up from SLEEP: – through interrupt – through WDT Time-out W — xxxx xxxx uuuu uuuu uuuu uuuu INDF 00h ---- ---- ---- ---- ---- ---- TMR0 01h xxxx xxxx uuuu uuuu uuuu uuuu PCL 02h 0000h 0000h PC + 1 (2) STATUS 03h 0001 1xxx 000q quuu (3) uuuq quuu (3) FSR 04h xxxx xxxx uuuu uuuu uuuu uuuu PORTA 05h ---x xxxx ---u uuuu ---u uuuu PORTB 06h xxxx xxxx uuuu uuuu uuuu uuuu EEDATA 08h xxxx xxxx uuuu uuuu uuuu uuuu EEADR 09h xxxx xxxx uuuu uuuu uuuu uuuu PCLATH 0Ah ---0 0000 ---0 0000 ---u uuuu INTCON 0Bh 0000 000x 0000 000u uuuu uuuu (1) INDF 80h ---- ---- ---- ---- ---- ---- OPTION_REG 81h 1111 1111 1111 1111 uuuu uuuu PCL 82h 0000h 0000h PC + 1 STATUS 83h 0001 1xxx 000q quuu (3) uuuq quuu (3) FSR 84h xxxx xxxx uuuu uuuu uuuu uuuu TRISA 85h ---1 1111 ---1 1111 ---u uuuu TRISB 86h 1111 1111 1111 1111 uuuu uuuu EECON1 88h ---0 x000 ---0 q000 ---0 uuuu EECON2 89h ---- ---- ---- ---- ---- ---- PCLATH 8Ah ---0 0000 ---0 0000 ---u uuuu INTCON 8Bh 0000 000x 0000 000u uuuu uuuu (1) Legend: u = unchanged, x = unknown, - = unimplemented bit read as '0', q = value depends on condition. Note 1: One or more bits in INTCON 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: Table 8-3 lists the reset value for each specific condition. |
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