PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 621

• Manufacturer Part Number: PNX1500E
• Manufacturer: NXP Semiconductors

Specifications of PNX1500E

• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
Volume 1 of 1
PNX15XX_PNX952X_SER_N_4
Product data sheet
2.3.2 Alpha Blending
2.3.3
Raster-ops are turned off if alpha blending is enabled.
The Drawing Engine supports alpha blending of source and destination data. The
destination data can be either 32-bit RGB:8888, 32-bit YUV8888, 16-bit RGB:565,
16-bit aRGB 4444, or 16-bit RGBa 4534. Source data can come either from the
memory or from the host data port. The alpha calculations are based on the source
and "surface" alpha values.
Raster-ops are disabled if alpha blending is selected.
The following combinations of source and destination data are supported.
Table 1: Source and Destination Data
The data for the source operand can reside in either the frame buffer memory or be
provided by the host processor via the MMIO bus. There are five source selection
options currently defined:
Source
Memory
Host
Host
Host
Memory
Host
Host
Host
Memory
Host
Host
Host
Memory
Host
Host
Host
Source Data Location and Type
1. Source data is held in frame buffer memory (always full color data)
2. Source data is provided by the processor via the MMIO bus and is full color
3. Source data is provided by the processor via the MMIO bus and is a
monochrome bitmap
Rev. 4.0 — 03 December 2007
Source
Format
RGB:565
RGB:565
RGB :4534
RGB :4534
RGB:8888
RGB:8888
:4
:8
:4
:8
:4
:8
RGB:4444
RGB:4444
:4
:8
Destination
Format
RGB:565
RGB:565
RGB:565
RGB:565
RGB :4534
RGB :4534
RGB :4534
RGB :4534
RGB:8888
RGB:8888
RGB:8888
RGB:8888
RGB:4444
RGB:4444
RGB:4444
RGB:4444
PNX15xx/952x Series
Notes
Std alpha calculations
Std alpha calculations
MonoHostBColor reg provides src color
MonoHostBColor reg provides src color
Surface reg specifies alpha
Surface reg specifies alpha
MonoHostBColor reg provides src color
MonoHostBColor reg provides src color
Std alpha calculations
Std alpha calculations
MonoHostBColor reg provides src color
MonoHostBColor reg provides src color
Std alpha calculations
Std alpha calculations
MonoHostBColor reg provides src color
MonoHostBColor reg provides src color
Chapter 20: 2D Drawing Engine
© NXP B.V. 2007. All rights reserved.
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