PIC16C62X Ver la hoja de datos (PDF) - Microchip Technology

Número de pieza

componentes Descripción

Fabricante

PIC16C62X

EPROM-Based 8-Bit CMOS Microcontroller

Microchip Technology 

4.0 MEMORY ORGANIZATION

4.1 Program Memory Organization

The PIC16C62X has a 13-bit program counter capable

of addressing an 8K x 14 program memory space. Only

the first 512 x 14 (0000h - 01FFh) for the

PIC16C620(A) and PIC16CR620, 1K x 14 (0000h -

03FFh) for the PIC16C621(A) and 2K x 14 (0000h -

07FFh) for the PIC16C622(A) are physically imple-

mented. Accessing a location above these boundaries

will cause a wrap-around within the first 512 x 14 space

(PIC16C(R)620(A)) or 1K x 14 space (PIC16C621(A))

or 2K x 14 space (PIC16C622(A)). The reset vector is

at 0000h and the interrupt vector is at 0004h

(Figure 4-1, Figure 4-2, Figure 4-3).

FIGURE 4-1:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16C620/PIC16C620A/

PIC16CR620A

PC<12:0>

CALL, RETURN

RETFIE, RETLW

13

Stack Level 1

Stack Level 2

Stack Level 8

Reset Vector

000h

Interrupt Vector

On-chip Program

Memory

0004

0005

01FFh

0200h

1FFFh

PIC16C62X

FIGURE 4-2:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16C621/PIC16C621A

PC<12:0>

CALL, RETURN

13

RETFIE, RETLW

Stack Level 1

Stack Level 2

Stack Level 8

Reset Vector

000h

Interrupt Vector

On-chip Program

Memory

0004

0005

03FFh

0400h

1FFFh

FIGURE 4-3:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16C622/PIC16C622A

PC<12:0>

CALL, RETURN

13

RETFIE, RETLW

Stack Level 1

Stack Level 2

Stack Level 8

Reset Vector

000h

Interrupt Vector

On-chip Program

Memory

0004

0005

07FFh

0800h

1FFFh

© 1998 Microchip Technology Inc.

Preliminary

DS30235G-page 13

Share Link: