PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 419
PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
Specifications of PNX1500E
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Volume 1 of 1
Table 20: QVCP 1 Registers
PNX15XX_PNX952X_SER_N_4
Product data sheet
Bit
11:0
Offset 0x10 E2CC
31:29
28
27
26
25:16
15
14
13
12
Symbol
Fetch Start
Unused
VCBM_U2B
VCBM_M2B
VCBM_L2B
VCBM_BRIGHTNESS
VCBM_U2C
VCBM_M2C
VCBM_L2C
VCBM_U2CO
Brightness & Contrast
…Continued
Acces
s
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
-
0
0
0
0
0
0
0
0
Value
Rev. 4.0 — 03 December 2007
Description
If enabled (by setting bit 31 to 1), the data fetched from memory will
be delayed until line number set here is reached, ie. the data pre-
fetch is disabled.
The number given here must be set to a value earlier in Y position
than LayerNStartY in 10E230 to prevent from layer underflow.
In non-interlaced mode :
In interlaced mode:
Brightness control bit for upper channel.
VCBM_U2B = 1 if brightness control is activated for the upper
channel.
Brightness control bit for middle channel.
VCBM_M2B = 1 if brightness control is activated for the middle
channel.
Brightness control bit for lower channel.
VCBM_L2B = 1 if brightness control is activated for the lower
channel.
Brightness Setting (Signed value ranging from -512 to 511 which is
equivalent to -100% to +100% brightness change for nominal
signals having a range from -256 to 255 with a contrast setting of
256)
Nominal value: 0
Brightness control is performed after e color space conversion in
associated with the contrast control.
Y‘‘ = Y‘ + VCBM_BRIGHTNESS if VCBM_U2B flag is raised.
Two’s complement to binary offset conversion for contrast control
(upper channel Y’/R’ = Y/R + VCBM_BLK_OFFSET)
Needs to be set in case the data format entering the VCBM is YUV
or RGB
Two’s complement to binary offset conversion for contrast control
(middle channel U/G)
Needs to be set in case the data format entering the VCBM is RGB
Two’s complement to binary offset conversion for contrast control
(lower channel V/B)
Needs to be set in case the data format entering the VCBM is RGB.
Back-end reverse offset (for two’s complement mentioned above)
control bit for upper channel.
(Yout/Rout = Yout/Rout - VCBM_BLK_OFFSET described below)
this value is relative to FRAME position. For example, if
LayerNStartY=100, a start fetch position of 98 is deemed earlier
position.
this value is relative to FIELD position. For example, if
LayerNStartY=100, a start fetch position of 52 is deemed one
line too late to start the fetch, because LayerNStartY=100 is
equivalent to field position 100/2=50. Therefore, a start fetch
positon of 48 is a proper one.
PNX15xx/952x Series
Chapter 11: QVCP
© NXP B.V. 2007. All rights reserved.
11-419
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