PIC16LC71 datasheet(79/176 Pages) MICROCHIP

номер детали	PIC16LC71

подробное описание детали	8-Bit CMOS Microcontrollers with A/D Converter

PDF	176 Pages

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производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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79 / 176 page

DS30272A-page 79

PIC16C71X

NOP

No Operation

Syntax:

[

label ]

NOP

Operands:

None

Operation:

No operation

Status Affected:

None

Encoding:

0000

0xx0

0000

Description:

No operation.

Words:

Cycles:

Q Cycle Activity:

Decode

NOP

Example

NOP

OPTION

Load Option Register

Syntax:

[

label ]

OPTION

Operands:

None

Operation:

(W)

→ OPTION

Status Affected: None

Encoding:

0000

0110

0010

Description:

The contents of the W register are

loaded in the OPTION register. This

instruction is supported for code com-

patibility with PIC16C5X products.

Since OPTION is a readable/writable

it.

Words:

Cycles:

Example

To maintain upward compatibility

with future PIC16CXX products, do

not use this instruction.

RETFIE

Return from Interrupt

Syntax:

[

label ]

RETFIE

Operands:

None

Operation:

TOS

→ PC,

→ GIE

Status Affected:

None

Encoding:

0000

1001

Description:

Return from Interrupt. Stack is POPed

and Top of Stack (TOS) is loaded in

the PC. Interrupts are enabled by set-

ting Global Interrupt Enable bit, GIE

(INTCON<7>). This is a two cycle

instruction.

Words:

Cycles:

Q Cycle Activity:

1st Cycle

Decode

NOP

Set the

GIE bit

Pop from

the Stack

2nd Cycle

NOP

Example

RETFIE

After Interrupt

PC =

TOS

GIE =

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