PNX1700EH/G,557 Trident Microsystems, Inc., PNX1700EH/G,557 Datasheet - Page 390
PNX1700EH/G,557
Manufacturer Part Number
PNX1700EH/G,557
Description
Manufacturer
Trident Microsystems, Inc.
Datasheet
1.PNX1700EHG557.pdf
(832 pages)
Specifications of PNX1700EH/G,557
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Philips Semiconductors
Volume 1 of 1
PNX17XX_SER_1
Preliminary data sheet
Note that due to resource assignment, the layers where the data stream leaves a pool
element are potentially at a different layer than where it entered, hence the horizontal
data flow structure no longer exists.
If for instance in
enter at In2 will leave the pool element at Out1 and the data stream entering at In1
will leave at Out2. The consequence is that all subsequent functional units will see
layers 1 and 2 swapped. It should be obvious that the subsequent units will have to be
reconfigured to show up in a different layer aperture.
If further down in the display pipe another swap is needed, the subsequent blocks
again have to be aperture reassigned. If a configuration requires the pixel stream for
a particular image surface to leave in the same layer as it entered, there is a cross-
bar implementation at the far end of the layer. This allows arbitrary assignment of an
input layer to a different output layer. This cross-bar can also be used to implement a
“z” reordering of image surfaces.
As a general guideline for the aperture map assignment, one should assign all
functional units through which a pixel data stream originating from pixel formatter N
flows, to the aperture space N regardless of whether the data flow is horizontal or zig-
zag due to pool resource reassignments.
Figure
Rev. 1 — 17 March 2006
12, layer 2 is configured to use resource 1, the data that will
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 11: QVCP
11-33
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