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# 3.25.14 Parallel Master Port (PMP)

The Parallel Master Port (PMP) is a parallel 8-bit/16-bit I/O module specifically designed to communicate with a wide variety of parallel devices such as communications peripherals, LCDs, external memory devices and micro-controllers. Because the interfaces to parallel peripherals vary significantly, the PMP module is highly configurable.

## Using The Library

The key features of PMP :-

- 8-bit,16-bit interface

- Up to 16 programmable address lines

- Up to two Chip Select lines

- Programmable strobe options

- Address auto-increment/auto-decrement

- Programmable address/data multiplexing

- Programmable polarity on control signals

- Programmable Wait states

## Library Interface

peripheral library provides the following interfaces:

Functions

Name | Description
--- | ---
PMP_Initialize | This function initializes the PMP controller of the device
PMP_AddressSet | Sets the current address of the PMP module to the specified address
PMP_AddressGet | Gets the current address of the PMP module
PMP_MasterSend | Sends the specified data in Master mode
PMP_MasterReceive | Receives the data in Master mode
PMP_PortIsBusy | Identifies if the (Master mode) PMP port is busy
PMP_AddressPortEnable | Enables the port lines specified as PMP address lines
PMP_AddressPortDisable | Disables the port lines specified as PMP address lines