PNX17XX Datasheet, PDF (621/832 Pages) NXP Semiconductors – Connected Media Processor

Chapter 20: 2D Drawing Engine
PNX17xx Series Data Book – Volume 1 of 1
Rev. 1 — 17 March 2006
Preliminary data sheet
1. Introduction
The purpose of this module is to accelerate the 2D drawing operations that are most
heavily used in a graphics environment. The 2D drawing engine (2DDE or DE in the
following text or data book) interfaces with both the internal MMIO-DTL bus and the
internal memory bus. DE operation may be synchronous to the memory interface,
with a small portion of the module operating at the MMIO bus clock frequency.
1.1 Features
The major features of the 2D drawing engine are:
• High Speed Operation
• 3 operand bit BLT (256 Raster operations)
• Alpha Blending
• Transparent bit BLT
• Fast host monochrome to full color expansion for text, mono bitmaps, and
patterns
• Lines
2. Functional Description
A block diagram of the 2D drawing engine is shown in Figure 1.