PIC16F1936T-ESS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F1936T-ESS

28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP™ Technology

Microchip Technology 

PIC16F193X/LF193X

TABLE 3-1: STATUS BITS AND THEIR SIGNIFICANCE

STKOVF STKUNF RMCLR RI POR BOR TO PD

Condition

0

0

1

1

0

x

1 1 Power-on Reset or LDO Reset

0

0

1

1

0

x

0 x Illegal, TO is set on POR

0

0

1

1

0

x

x 0 Illegal, PD is set on POR

0

0

1

1

u

0

1 1 Brown-out Reset

u

u

u

u

u

u

0 u WDT Reset

u

u

u

u

u

u

0 0 WDT Wake-up from Sleep

u

u

u

u

u

u

1 0 Interrupt Wake-up from Sleep

u

u

0

u

u

u

u u MCLR Reset during normal operation

u

u

0

u

u

u

1 0 MCLR Reset during Sleep

u

u

u

0

u

u

u u RESET Instruction Executed

1

u

u

u

u

u

u u Stack Overflow Reset (STVREN = 1)

u

1

u

u

u

u

u u Stack Underflow Reset (STVREN = 1)

TABLE 3-2: RESET CONDITION FOR SPECIAL REGISTERS(2)

Condition

Program

Counter

STATUS

Register

PCON

Register

Power-on Reset

0000h

---1 1000

00-- 110x

MCLR Reset during normal operation

0000h

---u uuuu

uu-- 0uuu

MCLR Reset during Sleep

0000h

---1 0uuu

uu-- 0uuu

WDT Reset

0000h

---0 uuuu

uu-- uuuu

WDT Wake-up from Sleep

PC + 1

---0 0uuu

uu-- uuuu

Brown-out Reset

Interrupt Wake-up from Sleep

0000h

PC + 1(1)

---1 1uuu

---1 0uuu

00-- 11u0

uu-- uuuu

RESET Instruction Executed

0000h

---u uuuu

uu-- u0uu

Stack Overflow Reset (STVREN = 1)

0000h

---u uuuu

1u-- uuuu

Stack Underflow Reset (STVREN = 1)

0000h

---u uuuu

u1-- uuuu

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

Note 1: When the wake-up is due to an interrupt and Global Enable bit (GIE) is set, the return address is pushed on

the stack and PC is loaded with the interrupt vector (0004h) after execution of PC + 1.

2: If a Status bit is not implemented, that bit will be read as ‘0’.

DS41364B-page 58

Preliminary

© 2009 Microchip Technology Inc.

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