PIC32MX3XX_1 Datasheet, PDF (119/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
20.0 PARALLEL MASTER PORT
(PMP)
Note 1: This data sheet summarizes the features
of the PIC32MX3XX/4XX family of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 13. “Parallel Master
Port (PMP)” (DS61128) of the “PIC32MX
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com/PIC32).
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.
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.
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
• Operate 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, data pins PMD<15:8>
are not available.
FIGURE 20-1:
PMP MODULE PINOUT AND CONNECTIONS TO EXTERNAL DEVICES
PIC32MX3XX/4XX
Parallel
Master Port
PMA<0>
PMALL
PMA<1>
PMALH
PMA<13:2>
PMA<14>
PMCS1
Address Bus
Data Bus
Control Lines
Up to 16-bit Address
FLASH
EEPROM
SRAM
PMA<15>
PMCS2
PMRD
PMRD/PMWR
PMWR
PMENB
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.
© 2010 Microchip Technology Inc.
DS61143G-page 119