PIC16F506 Microchip Technology, PIC16F506 Datasheet - Page 17

• Manufacturer Part Number: PIC16F506
• Description: (PIC12F510 / PIC16F506) 8-Bit Flash Microcontroller
• Manufacturer: Microchip Technology

4.0
The PIC12F510/16F506 memories are organized into
program memory and data memory. For devices with
more than 512 bytes of program memory, a paging
scheme is used. Program memory pages are accessed
using STATUS register bit PA0. For the PIC12F510 and
PIC16F506, with data memory register files of more
than 32 registers, a banking scheme is used. Data
memory banks are accessed using the File Select
Register (FSR).
4.1
The PIC12F510/16F506 devices have a 10-bit
Program Counter (PC) capable of addressing a 2K x 12
program memory space.
Only the first 1K x 12 (0000h-03FFh) are physically
implemented (see Figure 4-1). Accessing a location
above these boundaries will cause a wraparound
within the 1K x 12 space. The effective Reset vector
is a 0000h (see Figure 4-1). Location 03FFh contains
the internal clock oscillator calibration value. This
value should never be overwritten.
© 2006 Microchip Technology Inc.
MEMORY ORGANIZATION
Program Memory Organization for
the PIC12F510/16F506
Preliminary
FIGURE 4-1:
Note 1:
PIC12F510/16F506
CALL, RETLW
Address 0000h becomes the effective
Reset vector. Location 03FFh contains
the MOVLW XX internal oscillator
calibration value.
On-chip Program
On-chip Program
Reset Vector
Stack Level 1
Stack Level 2
1024 Word
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC12F510/16F506
PC<11:0>
512 Word
Memory
Memory
(1)
10
DS41268B-page 15
7FFh
0000h
01FFh
0200h
03FFh
0400h