PNX1502E Datasheet, PDF (376/819 Pages) NXP Semiconductors – Connected Media Processor

Philips Semiconductors
Volume 1 of 1
PNX15xx Series
Chapter 11: QVCP
Table 7: Fast Access Registers …Continued
Register
Interrupt Set (0x10 EFEC)
Powerdown (0x10 EFF4)
Module_ID (0x10 EFFC)
3.3 Programming of Layer and Pool Resources
This section describes in detail the resource pool concept and the aperture
assignment for pool and non-pool resources. A resource in general is a functional unit
which performs a certain independent task in the video display chain of the QVCP.
3.3.1 Resource Assignment and Selection
If no pool resources are used, the data flow for a single image surface through the
QVCP is strictly horizontal i.e., the pixel stream flows through the layer and does not
leave it. The pool resources are assigned by default to one of the layers. However the
pool resources are bypassed by default, which results in all layers becoming identical
in their function.
To assign a pool resource to a different layer it requires the following:
• Ensure that the resource shows up in the assigned layer aperture.
• Ensure that the pixel data stream of the particular layer is directed through the
selected resource.
3.3.2 Aperture Assignment
Each functional unit (resource) used in a QVCP layer has a unique identifier. It is
used to control the assignment of this resource to a specific QVCP layer aperture
location.
Table 8 lists the resource ID assignment for the functional units currently present in
the QVCP. A 32-bit identifier is used for the resource ID which allows for the addition
of functional units in future derivatives.
Table 8: Resource ID Assignment
ID
Functional Unit
1
PFU (Pixel Formatter Unit)
2
CKEY (Color Key and Undither Unit)
3
CUPS (Color Upsampling Unit)
4
LINT (Linear Interpolator)
5
VCBM (Video Contrast Brightness Matrix)
7
LCU (Layer Control Unit)
8
DMA (Control Unit)
9
CLUT (Color Look Up Table Unit)
10
HSRU (Horizontal Sample Rate Converter)
11
LSHR (Luminance Sharpening Unit)
12
HIST (Histogram Modification Unit)
12NC 9397 750 14321
Product data sheet
Rev. 2 — 1 December 2004
© Koninklijke Philips Electronics N.V. 2002-2003-2004. All rights reserved.
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