PIC12F752 datasheet(11/204 Pages) MICROCHIP

11 / 204 page

 2011 Microchip Technology Inc.

Preliminary

DS41576A-page 11

PIC12F752/HV752

2.0

MEMORY ORGANIZATION

2.1

Program Memory Organization

The PIC12F752/HV752 has a 13-bit program counter

capable of addressing an 8K x 14 program memory

space. Only the first 1K x 14 (0000h-03FFh) is

physically implemented. Accessing a location above

these boundaries will cause a wrap-around within the

first 1K x 14 space for PIC12F752/HV752. The Reset

vector is at 0000h and the interrupt vector is at 0004h

(see Figure 2-1).

FIGURE 2-1:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC12F752/HV752

2.2

Data Memory Organization

The data memory (see Figure 2-2) is partitioned into four

banks, which contain the General Purpose Registers

(GPR) and the Special Function Registers (SFR). The

Special Function Registers are located in the first 32

locations of each bank. Register locations 40h-6Fh in

Bank 0 are General Purpose Registers, implemented as

static RAM. Register locations 70h-7Fh in Bank 0 are

Common RAM and shared as the last 16 addresses in

all Banks. All other RAM is unimplemented and returns

‘0’ when read. The RP<1:0> bits of the STATUS register

are the bank select bits.

RP1

RP0

 Bank 0 is selected

 Bank 1 is selected

 Bank 2 is selected

 Bank 3 is selected

PC<12:0>

0000h

0004h

0005h

03FFh

0400h

1FFFh

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

On-chip Program

Memory

CALL, RETURN

RETFIE, RETLW

Stack Level 2

Wraps to 0000h-03FFh

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