SAM9G25 Atmel Corporation, SAM9G25 Datasheet - Page 1002

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SAM9G25

Manufacturer Part Number
SAM9G25
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM9G25

Flash (kbytes)
0 Kbytes
Pin Count
247
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
105
Ext Interrupts
105
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
3
Uart
7
Lin
4
Ssc
1
Ethernet
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
DDR2/LPDDR, SDRAM/LPSDR
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
Figure 44-5. Resize Examples
44.4.4.2
1002
1002
SAM9G25
SAM9G25
Color Space Conversion
1024
1024
This module converts YCrCb or YUV pixels to RGB color space. Clipping is performed to ensure
that the samples value do not exceed the allowable range. The conversion matrix is defined
below and is fully programmable:
Example of programmable value to convert YCrCb to RGB:
An example of programmable value to convert from YUV to RGB:
1280
1280
R
G
B
R
G
B
R
G
B
=
=
=
=
=
=
=
1.164
1.164
1.164
Y
Y
Y 0.394
+
+
C
C
C
1.596
2.032
0
0
0
56/16 decimation
C
32/16 decimation
C
0
4
Y 16
Y 16
2
Y 16
C
C
0
V
U
U
1
3
0.436
+
+
1.596
2.107
0.813
C
C
Y Y
b
r
C
C
V
off
boff
roff
C
C
C
r
r
b
128
128
128
352
640
0.392
C
288
b
480
128
11032A–ATARM–27-Jul-11
11032A–ATARM–27-Jul-11

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