pnx1500 NXP Semiconductors, pnx1500 Datasheet - Page 409

• Manufacturer Part Number: pnx1500
• Description: Pnx15xx Series Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 20: QVCP 1 Registers
PNX15XX_SER_3
Product data sheet
Bit
31:23
22:0
Offset 0x10 E22C
31:23
12:0
Offset 0x10 E230
31
30:29
28:16
15:13
12:0
Offset 0x10 E234
31:28
27:16
15:12
Symbol
Unused
Layer N Pitch
Semi Planar
Unused
Layer N Source Width
Semi Planar
Fine
Unused
LayerNStartX
Unused
LayerNStartY
Unused
LayerNHeight
Unused
Layer Source Width (Semi Planar UV)
Layer Start
Layer Size
…Continued
Acces
s
R/W
R/W
R/W
R/W
R/W
R/W
-
0
-
0
0
-
0
-
0
-
0
-
Value
Rev. 3 — 17 March 2006
Description
Layer N Source Data Pitch in bytes. This sets pitch for data transfers
from the linear Frame Buffer memory to Layer N for semi planar
modes. The value is used independent of whether buffer A or B is
used. The value has to be rounded up to the next 64-bit word.
Layer N source width in bytes for semi planar modes. The value is
used independent of whether buffer A or B is used. The value has to
be rounded up to the next 64-bit word.
Fine positioning enable for interlaced modes (layer size needs to be
set to odd + even number of lines).
Fine=0 : LayerNStartY is always relative to frame position, ie,
LayerNStartY=100 will display the layer at STG_Y_POS=100
position.
Fine=1 : LayerNStartY is always relative to field position, ie.
LayerNStartY=100 will be translated to display layer at
STG_Y_POS=100/2=50 position.
Fine=1 is recommanded in interlaced mode.
Fine=0 is recommanded in progressive mode.
Layer N Start x position (from zero at left edge) in pixels. Negative X
start position is possible.
Layer N Start y position (from zero at top) in lines. Negative Y
position is allowed.
Note: In interlaced modes the following rules apply:
Fine=0 : LayerNStartY is always relative to frame position i.e.,
LayerNStartY=100 will display the layer at STG_Y_POS=100
position.
Fine=1 : LayerNStartY is always relative to field position i.e.,
LayerNStartY=100 will be translated to display layer at
STG_Y_POS=100/2=50 position.
Fine=1 is recommanded in interlaced mode.
Fine=0 is recommanded in progressive mode.
Whenever layer y position is changed, please make sure other y
position sensitive register settings are still satisfied, such as :
start fetch register 10E2C8,
shadow reload position 10E1F0
layer start field register 10E23C (for interlaced mode)
Layer N height in lines.
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX15xx Series
Chapter 11: QVCP
11-56