PIC18LF8410-I/PTQTP View Datasheet(PDF) - Microchip Technology
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Description
Manufacturer
PIC18LF8410-I/PTQTP Datasheet PDF : 404 Pages
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PIC18F6310/6410/8310/8410
5.0 MEMORY ORGANIZATION
There are two types of memory in PIC18 Flash
Microcontroller devices:
• Program Memory
• Data RAM
As Harvard architecture devices, the data and program
memories use separate busses; this allows for
concurrent access of the two memory spaces.
Additional detailed information on the operation of the
Flash program memory is provided in Section 6.0
“Program Memory”.
5.1 Program Memory Organization
PIC18 microcontrollers implement a 21-bit program
counter, which is capable of addressing a 2-Mbyte
program memory space. Accessing a location between
the upper boundary of the physically implemented
memory and the 2-Mbyte address will return all ‘0’s (a
NOP instruction).
The PIC18F6310 and PIC18F8310 each have
8 Kbytes of Flash memory and can store up to 4,096
single-word instructions. The PIC18F6410 and
PIC18F8410 each have 16 Kbytes of Flash memory
and can store up to 8,192 single-word instructions.
PIC18 devices have two interrupt vectors. The Reset
vector address is at 0000h and the interrupt vector
addresses are at 0008h and 0018h.
The program memory maps for the
PIC18F6310/6410/8310/8410 devices are shown in
Figure 5-1.
FIGURE 5-1:
PROGRAM MEMORY MAP AND STACK FOR PIC18F6310/6410/8310/8410 DEVICES
PIC18FX310
PIC18FX410
PC<20:0>
CALL,RCALL,RETURN
21
RETFIE,RETLW
Stack Level 1
•
•
•
Stack Level 31
PC<20:0>
CALL,RCALL,RETURN
21
RETFIE,RETLW
Stack Level 1
•
•
•
Stack Level 31
Reset Vector
0000h
High Priority Interrupt Vector 0008h
Low Priority Interrupt Vector 0018h
Reset Vector
0000h
High Priority Interrupt Vector 0008h
Low Priority Interrupt Vector 0018h
On-Chip
Program Memory
1FFFh
2000h
On-Chip
Program Memory
Read ‘0’
Read ‘0’
3FFFh
4000h
1FFFFFh
2004 Microchip Technology Inc.
Preliminary
1FFFFFh
DS39635A-page 61
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