PIC16 datasheet(35/418 Pages) MICROCHIP

tên linh kiện	PIC16

Giải thích chi tiết về linh kiện	20-Pin Flash, 8-Bit Microcontrollers with XLP Technology

PDF	418 Pages

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nhà sản xuất	MICROCHIP [Microchip Technology]

Trang chủ	http://www.microchip.com

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 2011-2013 Microchip Technology Inc.

DS40001609C-page 35

PIC16(L)F1508/9

FIGURE 3-6:

ACCESSING THE STACK EXAMPLE 2

FIGURE 3-7:

ACCESSING THE STACK EXAMPLE 3

STKPTR = 0x00

Return Address

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).

0x0F

0x0E

0x0D

0x0C

0x0B

0x0A

0x09

0x08

0x07

0x06

0x04

0x05

0x03

0x02

0x01

0x00

TOSH:TOSL

Rev. 10-000043B

7/30/2013

STKPTR = 0x06

After seven

CALLsorsix 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.

Return Address

0x0F

0x0E

0x0D

0x0C

0x0B

0x0A

0x09

0x08

0x07

0x06

0x04

0x05

0x03

0x02

0x01

0x00

Return Address

TOSH:TOSL

Rev. 10-000043C

7/30/2013

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