PIC16F946-ESLASHMLQTP datasheet(231/330 Pages) MICROCHIP

231 / 330 page

DS41250F-page 229

PIC16F913/914/916/917/946

TABLE 16-5:

INITIALIZATION CONDITION FOR SPECIAL REGISTERS

LCDDATA22(7)

19Ah

xxxx xxxx

uuuu uuuu

LCDDATA23(7)

19Bh

---- --xx

---- --uu

LCDSE3(7)

19Ch

0000 0000

uuuu uuuu

LCDSE4(7)

19Dh

0000 0000

uuuu uuuu

LCDSE5(7)

19Eh

---- --00

---- --uu

EECON1

18Ch

x--- x000

u--- q000

u--- uuuu

TABLE 16-4:

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 16-5 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.

PIC16F914/917 and PIC16F946 only.

PIC16F946 only.

Condition

Program

Counter

STATUS

PCON

Power-on Reset

0000h

0001 1xxx

---1 --0x

MCLR Reset during normal operation

0000h

000u uuuu

---u --uu

MCLR Reset during Sleep

0000h

0001 0uuu

---u --uu

WDT Reset

0000h

0000 uuuu

---u --uu

WDT Wake-up

PC + 1

uuu0 0uuu

---u --uu

Brown-out Reset

0000h

0001 1uuu

---1 --10

Interrupt Wake-up from Sleep

PC + 1(1)

uuu1 0uuu

---u --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.

PIC16F946-E/MLQTP Datasheet(PDF) 231 Page - Microchip Technology

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