PNX1502E Datasheet, PDF (409/819 Pages) NXP Semiconductors – Connected Media Processor

Philips Semiconductors
Volume 1 of 1
PNX15xx Series
Chapter 11: QVCP
Table 20: QVCP 1 Registers …Continued
Bit Symbol
Acces
s
25:16 HSRU_ddd_phase
R/W
Value
0
15:12 Unused
11:0 HSRU_dd_phase
-
R/W 0
Offset 0x10 E2B4
31:12 Unused
11:0 LayerNWidth
Layer Size (final)
-
R/W 0
Description
Signed. This delta-delta-delta phase is added with delta-delta phase
to make it change. This is used for non-linear scaling ratios.For the
HSRU to work in bypass mode this register has to be programmed
to 0.
Signed. This is the initial delta-delta phase. It is added with delta
phase to make it change. This is used for non-linear scaling ratios.
For the HSRU to work in bypass mode this register has to be
programmed to 0.
Note: Layer Size(final) register has to be modified if HSRU scale
ratio is changed.
final (after scaling) Layer N width, in pixels.
Note: This register has to be programmed to match the final width
after scaling, as given by the equation below.
• Final width = (input width)*scaling ratio
LINT and HSRU can only crop at most 5 pixels off a scaled image.
Setting this register to a width which is more than 5 pixels smaller
than the scaled width can result in data underflow.
On the other hand, if the final width is greater than the scaled
image, the last pixel will be repeated to fill the final width.
Always remember to update this register if LINT or HSRU scale
values are changed.
Offset 0x10 E2B8
Output and Alpha manipulation
31:24 Unused
-
23:16 LAYER_FIXED_ALPHA R/W 0
Alpha blend value to be applied to mixer. Provides 256 levels of
fixed alpha blending:
The AlphaSelect ROP must be set appropriately to use this feature.
15:14 PF_ALPHA_MODE
R/W
Control how Alpha channel data is generated
00: Fixed Alpha
01: Fixed Alpha
10: Per pixel alpha
11: Per pixel alpha is multiplied with (fixed_alpha)/256
Mode 11 is not effective when PF_10B_MODE is on since the Alpha
value is set to zero.
13 Unused
12 PF_A2C
R/W 0
Controls alpha channel format within layer
0 = data untouched
1 = data conversion two’s compliment <-> binary offset
The conversion takes place after the color key unit before the
undither 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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