PIC32MX5XX_11 Datasheet, PDF (149/256 Pages) Microchip Technology – High-Performance, USB, CAN and Ethernet 32-bit Flash Microcontrollers

PIC32MX5XX/6XX/7XX
20.0 PARALLEL MASTER PORT
(PMP)
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.
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
Note: On 64-pin devices, the PMD<15:8> data
pins are not available.
FIGURE 20-1:
PMP MODULE PINOUT AND CONNECTIONS TO EXTERNAL DEVICES
PIC32MX5XX/6XX/7XX
Parallel
Master Port
PMA<0>
PMALL
PMA<1>
PMALH
PMA<13:2>
PMA<14>
PMCS1
PMA<15>
PMCS2
PMRD
PMRD/PMWR
PMWR
PMENB
Address Bus
Data Bus
Control Lines
Up to 16-bit Address
Flash
EEPROM
SRAM
Microcontroller
LCD
FIFO
Buffer
PMD<7:0>
PMD<15:8>⁽¹⁾
16/8-bit Data (with or without multiplexed addressing)
Note 1: On 64-pin devices, data pins, PMD<15:8>, are not available in 16-bit Master modes.
© 2009-2011 Microchip Technology Inc.
DS61156G-page 149