Parallel Peripheral Interface: Difference between revisions

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=={{Short description|PPI : Parallel Peripheral Interface ==(2001, USA)}}

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== PPI : Parallel Peripheral Interface ==

{{More citations needed|date=February 2022}}

{{Notability|date=March 2015}}

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The '''Parallel Peripheral Interface''' ('''PPI''') is a peripheral found on the [[Blackfin]] embedded processor. The PPI is a [[half-duplex]], [[Two-way communication|bi-directional]] port that is designed to connect directly to [[LCD]]s, [[CMOS sensor]]s, [[Charge-coupled device|CCD]]s, video encoders (video [[Digital-to-analog converter|DAC]]s), video decoders (video [[Analog-to-digital converter|ADC]]s) or any generic high speed, parallel device.<ref>{{Cite web|title=PPI: Parallel Peripheral Interface [Analog Devices Wiki]|url=https://wiki.analog.com/resources/eval/sdp/sdp-b/peripherals/ppi|access-date=2021-10-01|website=wiki.analog.com}}</ref>

The PPI is a peripheral found on the [[Blackfin]] embedded processor.

The width of the PPI is programmable and can be set between 8 and 16- bits in 1 -bit increments. The latest Blackfin family (BF54x) also features aan 18/24-bit PPI for direct connection to [[RGB]] [[LCD]] panels.

The PPI is a half-duplex, bi-directional port that is designed to connect directly to LCDs, [[CMOS_Sensor|CMOS sensors]], [[Charge-coupled_device|CCDs]], video encoders (video [[Digital-to-analog_converter|DACs]]), video decoders (video [[Analog-to-digital_converter|ADCs]]) or any generic high speed, parallel device.

The PPI can run from 0MHz0 [[MHz]] up to 66MHz66&nbsp;MHz.

The width of the PPI is programmable and can be set between 8 and 16-bits in 1 bit increments. The latest Blackfin family (BF54x) also features a 18/24-bit PPI for direct connection to [[RGB]] [[LCD]] panels.

The PPI has a dedicated clock pin, three multiplexed frame sync pins, and between 16 and 24 data pins.<ref>{{Cite web|last=Y|first=Roshni|date=2019-07-04|title=What is 8255 Programmable Peripheral Interface (PPI)? Definition, Architecture, Pin Diagram and Modes of Operation of 8255|url=https://electronicsdesk.com/8255-ppi.html|access-date=2021-10-01|website=Electronics Desk|language=en-US}}</ref>

The PPI can run from 0MHz up to 66MHz.

==References==

The PPI has a dedicated clock pin, three multiplexed frame sync pins, and between 16 and 24 data pins.

{{reflist}}

http://blackfin.uclinux.org/doku.php?id=ppi

[[Category:Computer peripherals]]

{{compu-hardware-stub}}