PIC18F6X2X Datasheet, PDF (44/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
FIGURE 4-1:
INTERNAL PROGRAM
MEMORY MAP AND
STACK FOR PIC18FX525
PC<20:0>
CALL,RCALL,RETURN
21
RETFIE,RETLW
Stack Level 1
••
•
Stack Level 31
RESET Vector
000000h
High Priority Interrupt Vector 000008h
Low Priority Interrupt Vector 000018h
On-Chip FLASH
Program Memory
00BFFFh
00C000h
FIGURE 4-2:
INTERNAL PROGRAM
MEMORY MAP AND
STACK FOR PIC18FX621
PC<20:0>
CALL,RCALL,RETURN
21
RETFIE,RETLW
Stack Level 1
••
•
Stack Level 31
RESET Vector
000000h
High Priority Interrupt Vector 000008h
Low Priority Interrupt Vector 000018h
On-Chip FLASH
Program Memory
Read ‘0’
00FFFFh
010000h
Read ‘0’
1FFFFFh
200000h
1FFFFFh
200000h
TABLE 4-1: MEMORY ACCESS FOR PIC18F8X2X PROGRAM MEMORY MODES
Operating Mode
Internal Program Memory
Execution
From
Table Read
From
Table Write To
External Program Memory
Execution
From
Table Read
From
Table Write To
Microprocessor
Microprocessor
w/ Boot Block
Microcontroller
Extended
Microcontroller
No Access
Yes
Yes
Yes
No Access
Yes
Yes
Yes
No Access
Yes
Yes
Yes
Yes
Yes
No Access
Yes
Yes
Yes
No Access
Yes
Yes
Yes
No Access
Yes
DS39612A-page 42
Advance Information
 2003 Microchip Technology Inc.