PIC16F18345 datasheet(44/442 Pages) MICROCHIP

No de pièce	PIC16F18345

Description	Full-Featured, Low Pin Count Microcontrollers with XLP

PDF	442 Pages

Scroll/Zoom	100%

Fabricant	MICROCHIP [Microchip Technology]

Site Internet	http://www.microchip.com

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44 / 442 page

PIC16(L)F18313/18323

DS40001799A-page 44

Preliminary

 2015 Microchip Technology Inc.

FIGURE 3-5:

ACCESSING THE STACK EXAMPLE 2

FIGURE 3-6:

ACCESSING THE STACK EXAMPLE 3

0x0F

0x0E

0x0D

0x0C

0x0B

0x0A

0x09

0x08

0x07

0x06

0x05

0x04

0x03

0x02

0x01

Return Address

0x00

STKPTR = 0x00

This figure shows the stack configuration

after the first CALL or a single interrupt.

If a RETURN instruction is executed, the

return address will be placed in the

Program Counter and the Stack Pointer

decremented to the empty state (0x1F).

TOSH:TOSL

0x0F

0x0E

0x0D

0x0C

0x0B

0x0A

0x09

0x08

0x07

Return Address

0x06

Return Address

0x05

Return Address

0x04

Return Address

0x03

Return Address

0x02

Return Address

0x01

Return Address

0x00

STKPTR = 0x06

After seven CALLs or six CALLs and an

interrupt, the stack looks like the figure

on the left. A series of RETURN instructions

will repeatedly place the return addresses

into the Program Counter and pop the stack.

TOSH:TOSL

PIC16F18345 Fiches technique(PDF) 44 Page - Microchip Technology

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