PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 48

• Manufacturer Part Number: PIC12F1822
• Description: 8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F/LF1822/16F/LF1823
3.5.2
The linear data memory is the region from FSR
address 0x2000 to FSR address 0x29AF. This region is
a virtual region that points back to the 80-byte blocks of
GPR memory in all the banks.
Unimplemented memory reads as 0x00. Use of the
linear data memory region allows buffers to be larger
than 80 bytes because incrementing the FSR beyond
one bank will go directly to the GPR memory of the next
bank.
The 16 bytes of common memory are not included in
the linear data memory region.
FIGURE 3-10:
DS41413A-page 48
7
0
0
FSRnH
1
Location Select
LINEAR DATA MEMORY
0
LINEAR DATA MEMORY
MAP
7
FSRnL
0x2000
0x29AF
Bank 30
Bank 0
0x06F
0x020
0x0A0
Bank 1
0x0EF
0x120
Bank 2
0xF20
0xF6F
0x16F
0
Preliminary
3.5.3
To make constant data access easier, the entire
program Flash memory is mapped to the upper half of
the FSR address space. When the MSB of FSRnH is
set, the lower 15 bits are the address in program
memory which will be accessed through INDF. Only the
lower 8 bits of each memory location is accessible via
INDF. Writing to the program Flash memory cannot be
accomplished
instructions that access program Flash memory via the
FSR/INDF interface will require one additional
instruction cycle to complete.
FIGURE 3-11:
7
1
FSRnH
Location Select
PROGRAM FLASH MEMORY
via
0
the
PROGRAM FLASH
MEMORY MAP
 2010 Microchip Technology Inc.
7
FSR/INDF
FSRnL
0x8000
0xFFFF
interface.
Program
Flash
Memory
(low 8
bits)
0x0000
0x7FFF
0
All