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| PIC16F84A_13 Datasheet, PDF (25/90 Pages) Microchip Technology – 18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller | |||
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PIC16F84A
TABLE 6-4: RESET CONDITIONS FOR ALL REGISTERS
Register
Address
Power-on Reset
MCLR during:
â normal operation
â SLEEP
WDT Reset during
normal operation
Wake-up from SLEEP:
â through interrupt
â through WDT Time-out
W
â
xxxx xxxx
uuuu uuuu
uuuu uuuu
INDF
00h
---- ----
---- ----
---- ----
TMR0
PCL
STATUS
01h
xxxx xxxx
02h
0000 0000
03h
0001 1xxx
uuuu uuuu
0000 0000
000q quuu(3)
uuuu uuuu
PC + 1(2)
uuuq quuu(3)
FSR
04h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PORTA(4)
05h
---x xxxx
---u uuuu
---u uuuu
PORTB(5)
06h
xxxx xxxx
uuuu uuuu
uuuu uuuu
EEDATA
08h
xxxx xxxx
uuuu uuuu
uuuu uuuu
EEADR
09h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PCLATH
INTCON
0Ah
---0 0000
0Bh
0000 000x
---0 0000
0000 000u
---u uuuu
uuuu uuuu(1)
INDF
80h
---- ----
---- ----
---- ----
OPTION_REG
81h
PCL
82h
STATUS
83h
1111 1111
0000 0000
0001 1xxx
1111 1111
0000 0000
000q quuu(3)
uuuu uuuu
PC + 1(2)
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
INTCON
8Ah
---0 0000
8Bh
0000 000x
---0 0000
0000 000u
---u uuuu
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 6-3 lists the RESET value for each specific condition.
4: On any device RESET, these pins are configured as inputs.
5: This is the value that will be in the port output latch.
ï£ 2001-2013 Microchip Technology Inc.
DS35007C-page 25
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