PIC12F683_07 datasheet(93/176 Pages) MICROCHIP

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DS41211D-page 91

PIC12F683

TABLE 12-5:

INITIALIZATION CONDITION FOR SPECIAL REGISTERS

EECON1

9Ch

---- x000

---- q000

---- uuuu

EECON2

9Dh

---- ----

ADRESL

9Eh

xxxx xxxx

uuuu uuuu

ANSEL

9Fh

-000 1111

-uuu uuuu

TABLE 12-4:

INITIALIZATION CONDITION FOR REGISTERS (CONTINUED)

Address

Power-on Reset

MCLR Reset

WDT Reset

Brown-out Reset(1)

Wake-up from Sleep

through Interrupt

Wake-up from Sleep through

WDT Time-out

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.

One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up).

When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt

vector (0004h).

See Table 12-5 for Reset value for specific condition.

If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u.

Condition

Program

Counter

Status

PCON

Power-on Reset

000h

0001 1xxx

--01 --0x

MCLR Reset during Normal Operation

000h

000u uuuu

--0u --uu

MCLR Reset during Sleep

000h

0001 0uuu

--0u --uu

WDT Reset

000h

0000 uuuu

--0u --uu

WDT Wake-up

PC + 1

uuu0 0uuu

--uu --uu

Brown-out Reset

000h

0001 1uuu

--01 --10

Interrupt Wake-up from Sleep

PC + 1(1)

uuu1 0uuu

--uu --uu

Legend: u = unchanged, x = unknown, – = unimplemented bit, reads as ‘0’.

Note 1:

When the wake-up is due to an interrupt and Global Interrupt Enable bit, GIE, is set, the PC is loaded with

the interrupt vector (0004h) after execution of PC + 1.

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