PIC16LCR65AT-04E/TQ View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16LCR65AT-04E/TQ Datasheet PDF : 336 Pages
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4.0 MEMORY ORGANIZATION
Applicable Devices
61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67
4.1 Program Memory Organization
The PIC16C6X family has a 13-bit program counter
capable of addressing an 8K x 14 program memory
space. The amount of program memory available to
each device is listed below:
Device
Program
Memory
Address Range
PIC16C61
PIC16C62
PIC16C62A
PIC16CR62
PIC16C63
PIC16CR63
PIC16C64
PIC16C64A
PIC16CR64
PIC16C65
PIC16C65A
PIC16CR65
PIC16C66
PIC16C67
1K x 14
2K x 14
2K x 14
2K x 14
4K x 14
4K x 14
2K x 14
2K x 14
2K x 14
4K x 14
4K x 14
4K x 14
8K x 14
8K x 14
0000h-03FFh
0000h-07FFh
0000h-07FFh
0000h-07FFh
0000h-0FFFh
0000h-0FFFh
0000h-07FFh
0000h-07FFh
0000h-07FFh
0000h-0FFFh
0000h-0FFFh
0000h-0FFFh
0000h-1FFFh
0000h-1FFFh
For those devices with less than 8K program memory,
accessing a location above the physically implemented
address will cause a wraparound.
The reset vector is at 0000h and the interrupt vector is
at 0004h.
FIGURE 4-1: PIC16C61 PROGRAM
MEMORY MAP AND STACK
PC<12:0>
CALL, RETURN
13
RETFIE, RETLW
Stack Level 1
•••
Stack Level 8
Reset Vector
0000h
Peripheral Interrupt Vector 0004h
0005h
On-chip Program
Memory
03FFh
0400h
1FFFh
PIC16C6X
FIGURE 4-2:
PIC16C62/62A/R62/64/64A/
R64 PROGRAM MEMORY
MAP AND STACK
PC<12:0>
CALL, RETURN
13
RETFIE, RETLW
Stack Level 1
•••
Stack Level 8
Reset Vector
0000h
Peripheral Interrupt Vector 0004h
0005h
On-chip Program
Memory
07FFh
0800h
1FFFh
FIGURE 4-3:
PIC16C63/R63/65/65A/R65
PROGRAM MEMORY MAP
AND STACK
PC<12:0>
CALL, RETURN
13
RETFIE, RETLW
Stack Level 1
•••
Stack Level 8
Reset Vector
0000h
Peripheral Interrupt Vector 0004h
0005h
On-chip Program
Memory (Page 0)
On-chip Program
Memory (Page 1)
07FFh
0800h
0FFFh
1000h
1FFFh
© 1997 Microchip Technology Inc.
DS30234D-page 19
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