PIC16F1507-ESLASHSS. datasheet(36/278 Pages) MICROCHIP

36 / 278 page

PIC16(L)F1507

DS40001586D-page 36

 2011-2015 Microchip Technology Inc.

3.6.2

LINEAR DATA MEMORY

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:

LINEAR DATA MEMORY

MAP

3.6.3

PROGRAM FLASH MEMORY

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 eight bits of each memory location is accessible

via INDF. Writing to the program Flash memory cannot

be accomplished via the FSR/INDF interface. All

instructions that access program Flash memory via the

FSR/INDF interface will require one additional

instruction cycle to complete.

FIGURE 3-11:

PROGRAM FLASH

MEMORY MAP

0x020

Bank 0

0x06F

0x0A0

Bank 1

0x0EF

0x120

Bank 2

0x16F

0xF20

Bank 30

0xF6F

001

FSRnH

FSRnL

Location Select

0x2000

0x29AF

Rev. 10-000057A

7/31/2013

0x0000

Program

Flash

Memory

(low 8 bits)

0x7FFF

FSRnH

FSRnL

Location Select

0x8000

0xFFFF

Rev. 10-000058A

7/31/2013

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