PIC16CE62X
FIGURE 4-2: PROGRAM MEMORY MAP
AND STACK FOR THE
4.0
MEMORY ORGANIZATION
4.1
Program Memory Organization
PIC16CE624
The PIC16CE62X has a 13-bit program counter capa-
ble of addressing an 8K x 14 program memory space.
Only the first 512 x 14 (0000h - 01FFh) for the
PC<12:0>
CALL, RETURN
RETFIE, RETLW
13
PIC16CE623, 1K
x 14 (0000h - 03FFh) for the
PIC16CE624 and 2K x 14 (0000h - 07FFh) for the
PIC16CE625 are physically implemented. Accessing a
Stack Level 1
Stack Level 2
location above these boundaries will cause
a
wrap-around within the first 512 14 space
x
(PIC16CE623) or 1K x 14 space (PIC16CE624) or 2K
x 14 space (PIC16CE625).The reset vector is at 0000h
and the interrupt vector is at 0004h (Figure 4-1,
Figure 4-2, Figure 4-3).
Stack Level 8
Reset Vector
000h
FIGURE 4-1: PROGRAM MEMORY MAP
AND STACK FOR THE
Interrupt Vector
0004
0005
PIC16CE623
PC<12:0>
On-chip Program
Memory
CALL, RETURN
RETFIE, RETLW
13
03FFh
0400h
Stack Level 1
Stack Level 2
1FFFh
Stack Level 8
FIGURE 4-3: PROGRAM MEMORY MAP
AND STACK FOR THE
Reset Vector
PIC16CE625
000h
PC<12:0>
CALL, RETURN
RETFIE, RETLW
13
Interrupt Vector
0004
0005
Stack Level 1
Stack Level 2
On-chip Program
Memory
Stack Level 8
01FFh
0200h
Reset Vector
000h
1FFFh
Interrupt Vector
0004
0005
On-chip Program
Memory
07FFh
0800h
1FFFh
1998 Microchip Technology Inc.
Preliminary
DS40182A-page 11
MICROCHIP [ MICROCHIP ]
