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NXP Semiconductors
PNX15xx/952x Series
Volume 1 of 1
Chapter 19: Memory Based Scaler
PNX15XX_PNX952X_SER_N_4
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 4.0 — 03 December 2007
19-612
31:24
HISTO_DATA_31 [7:0]
R
Measured histogram data (bin 31, range 496...511)
23:16
HISTO_DATA_30 [7:0]
R
Measured histogram data (bin 30, range 480...495)
15:8
HISTO_DATA_29 [7:0]
R
Measured histogram data (bin 29, range 464...479)
7:0
HISTO_DATA_28 [7:0]
R
Measured histogram data (bin 28, range 448...463)
Noise Estimation Registers
Offset 0x10 CE20
Noise Estimator Control Register 1
31:22
Reserved
-
21
NEST_STALL
W
0
Stall of measurement unit
0 = measurement unit active (default)
1 = measurement unit stalled
20:19
CLIP_OFFSET [1:0]
W
0
Selection of clipping levels
18
SEL_SOB_NEGLECT_
EXT
W
0
Selection of external SOB_NEGLECT_FLAG
17
SOB_NEGLECT_EXT
W
0
External SOB_NEGLECT ag
16:13
COMPENSATE [3:0]
W
0
Signed value added to NEST before low pass ltering
12:10
GAIN_UPBND [2:0]
W
0
Selection of coupling to low boundary
9:8
YPSCALE [1:0]
W
0
Scaling factor of the prelter unit
7:0
WANTED_VALUE [7:0]
W
46
Controls the updown counting of images. When the number of times
ce_SOB and ce_SAD are in agreement (equal ‘1’) in an image, is
smaller than WANTED_VALUE, unit are counting down; otherwise
counting up.
Offset 0x10 CE24
Noise Estimator Control Register 2
31:24
Reserved
-
23:16
LB_DETAIL [7:0]
W
32
Lower limit for absolute difference between two adjacent pixels
15:8
Reserved
-
7:0
UPB_DETAIL [7:0}
W
BE
Upper limit for absolute difference between two adjacent pixels
Offset 0x10 CE28
Noise Estimator Window Start
31:27
Reserved
-
26:16
NEST_XWS [10:0]
W
1
Horizontal Noise Estimator window start
15:11
Reserved
-
10:0
NEST_YWS [10:0]
W
1
Vertical Noise Estimator window start
Offset 0x10 CE2C
Noise Estimator Window End
31:27
Reserved
-
26:16
NEST_XWE [10:0]
W
2D0
Horizontal NOise Estimator window end
15:11
Reserved
-
10:0
NEST_YWE [10:0]
W
120
Vertical Noise Estimator window end
Offset 0x10 CEB0
Noise Estimator Data Output 1
31:26
Reserved
-
27:24
NEST [3:0]
R
The number of times in an image that the number of events
(ce_SOB = ce_SAD) is lower than WANTED_VALUE.
Table 8: Memory Based Scaler (MBS) Registers …Continued
Bit
Symbol
Acces
s
Value
Description