Datasheet

© 2009-2011 Microchip Technology Inc. DS61156G-page 149
PIC32MX5XX/6XX/7XX
20.0 PARALLEL MASTER PORT
(PMP)
The PMP is a parallel 8-bit/16-bit input/output module
specifically designed to communicate with a wide
variety of parallel devices, such as communications
peripherals, LCDs, external memory devices and
microcontrollers. Because the interface to parallel
peripherals varies significantly, the PMP module is
highly configurable. Figure 20-1 shows the PMP
module pinout and its connections to external devices.
Key features of the PMP module include:
• 8-bit, 16-bit interface
• Up to 16 programmable address lines
• Up to two Chip Select lines
• 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
• Parallel Slave Port support
- Legacy addressable
- Address support
- 4-byte deep auto-incrementing buffer
• Programmable wait states
• Operates during CPU Sleep and Idle modes
• Fast bit manipulation using CLR, SET and INV
registers
• Freeze option for in-circuit debugging
FIGURE 20-1: PMP MODULE PINOUT AND CONNECTIONS TO EXTERNAL DEVICES
Note 1: This data sheet summarizes the features
of the PIC32MX5XX/6XX/7XX family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to
Section 13. “Parallel
Master Port (PMP)”
(DS61128) in the
“PIC32 Family Reference Manual”, which
is available from the Microchip web site
(www.microchip.com/PIC32).
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization” in
this data sheet for device-specific register
and bit information.
Note: On 64-pin devices, the PMD<15:8> data
pins are not available.
PMA<0>
PMA<14>
PMA<15>
PMRD
PMWR
PMENB
PMRD/PMWR
PMCS1
PMA<1>
PMA<13:2>
PMALL
PMALH
PMCS2
Flash
Address Bus
Data Bus
Control Lines
PIC32MX5XX/6XX/7XX
LCD
FIFO
Microcontroller
16/8-bit Data (with or without multiplexed addressing)
Up to 16-bit Address
Parallel
Buffer
PMD<15:8>
(1)
PMD<7:0>
Master Port
Note 1: On 64-pin devices, data pins, PMD<15:8>, are not available in 16-bit Master modes.
EEPROM
SRAM