pnx1700 NXP Semiconductors, pnx1700 Datasheet - Page 420

• Manufacturer Part Number: pnx1700
• Description: Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 20: QVCP 1 Registers
PNX17XX_SER_1
Preliminary data sheet
Bit
25:16
15:12
11:0
Offset 0x10 E2B4
31:12
11:0
Offset 0x10 E2B8
31:24
23:16
15:14
13
12
Symbol
HSRU_ddd_phase
Unused
HSRU_dd_phase
Unused
LayerNWidth
Unused
LAYER_FIXED_ALPHA
PF_ALPHA_MODE
Unused
PF_A2C
Layer Size (final)
Output and Alpha manipulation
…Continued
Acces
s
R/W
R/W
R/W
R/W
R/W
R/W
0
-
0
-
0
-
0
0
Value
Rev. 1 — 17 March 2006
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.
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.
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.
Control how Alpha channel data is generated
Mode 11 is not effective when PF_10B_MODE is on since the Alpha
value is set to zero.
Controls alpha channel format within layer
The conversion takes place after the color key unit before the
undither unit.
•
00: Fixed Alpha
01: Fixed Alpha
10: Per pixel alpha
11: Per pixel alpha is multiplied with (fixed_alpha)/256
0 = data untouched
1 = data conversion two’s compliment <-> binary offset
Final width = (input width)*scaling ratio
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 11: QVCP
11-63