DSPIC33FJ32GP302THSLASHSP datasheet(291/403 Pages) MICROCHIP

291 / 403 page

 2009 Microchip Technology Inc.

Preliminary

DS70292D-page 291

dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04

26.0

PARALLEL MASTER PORT

(PMP)

The Parallel Master Port (PMP) module is a parallel

8-bit I/O module, specifically designed to communi-

cate with a wide variety of parallel devices, such as

communication peripherals, LCDs, external memory

devices and microcontrollers. Because the interface

to parallel peripherals varies significantly, the PMP is

highly configurable.

Key features of the PMP module include:

• Fully multiplexed address/data mode

• Demultiplexed or partially multiplexed address/

data mode

- up to 11 address lines with single chip select

- up to 12 address lines without chip select

• One Chip Select Line

• Programmable Strobe Options

- Individual Read and Write Strobes or;

- Read/Write Strobe with Enable Strobe

• Address Auto-Increment/Auto-Decrement

• Programmable Address/Data Multiplexing

• Programmable Polarity on Control Signals

• Legacy Parallel Slave Port Support

• Enhanced Parallel Slave Support

- Address Support

- 4-Byte Deep Auto-Incrementing Buffer

• Programmable Wait States

• Selectable Input Voltage Levels

FIGURE 26-1:

PMP MODULE OVERVIEW

Note 1: This data sheet summarizes the features

the

dsPIC33FJ32GP302/304,

dsPIC33FJ64GPX02/X04,

and

dsPIC33FJ128GPX02/X04

families

devices. It is not intended to be a compre-

hensive reference source. To comple-

ment the information in this data sheet,

refer to “Section 35. Parallel Master

Port

(PMP)”

(DS70299)

the

“dsPIC33F/PIC24H

Family

Reference

Manual”, which is available from the

Microchip website (www.microchip.com).

2: Some registers

and

associated bits

described in this section may not be avail-

able on all devices. Refer to Section 4.0

“Memory Organization” in this data

sheet for device-specific register and bit

information.

PMA<0>

PMBE

PMRD

PMWR

PMD<7:0>

PMENB

PMRD/PMWR

PMCS1

PMA<1>

PMA<10:2>(1)

PMALL

PMALH

PMA<7:0>

PMA<10:8>

EEPROM

Address Bus

Data Bus

Control Lines

dsPIC33F

LCD

FIFO

Microcontroller

8-Bit Data

Up to 11-Bit Address

Parallel Master Port

Buffer

Note 1: 28-pin devices do not have PMA<10:2>.

PMA<14>

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