PORTGPA datasheet(67/222 Pages) MICROCHIP

Part #	PORTGPA

Description	Digitally Enhanced Power Analog Controller with Integrated Synchronous Driver

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 2013 Microchip Technology Inc.

DS22331A-page 67

MCP19111

11.0

MEMORY ORGANIZATION

There are two types of memory in the MCP19111:

• Program Memory

• Data Memory

- Special Function Registers (SFRs)

- General Purpose RAM

11.1

Program Memory Organization

The MCP19111 has a 13-bit program counter capable

of addressing an 8K x 14 program memory space. Only

the

first

4K x 14

(0000h-0FFFh)

is

physically

implemented.

Addressing

a

location

above

this

boundary will cause a wrap-around within the first

4K x 14 space. The Reset vector is at 0000h and the

interrupt vector is at 0004h (see Figure 11-1). The width

of the program memory bus (instruction word) is

14-bits. Since all instructions are a single word, the

MCP19111 has space for 4K of instructions.

FIGURE 11-1:

PROGRAM MEMORY MAP

AND STACK FOR

MCP19111

Unimplemented

PC<12:0>

13

0000h

0004h

0005h

0FFFh

1FFFh

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

On-Chip Program

Memory

CALL, RETURN

RETFIE, RETLW

1000h

User IDs(1)

Device ID (hardcoded)(1)

Config Word(1)

2000h

2005h

2006h

2007h

200Ah

207Fh

20FFh

2003h

2004h

ICD Instruction(1)

Manufacturing Codes(1)

Note 1: Not code protected.

Shadows 000-FFFh

2008h

Reserved for

Manufacturing & Test(1)

2080h

Calibration Words(1)

200Bh

208Fh

2090h

Shadows 2000-20FFh

2100h

3FFFh

Reserved

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