SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 1087

• Manufacturer Part Number: SAM9G45
• Manufacturer: Atmel Corporation

Specifications of SAM9G45

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 5
• Lin: 4
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• External Bus Interface: 2
• 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

45.6.11.4
Figure 45-10. 256-level Alpha Blending
45.6.11.5
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
Source Color Keying
Destination Color Keying
Window Blending
Color Keying
Base Image
Color keying involves a method of bit-block image transfer (Blit). This entails blitting one image
onto another where not all the pixels are copied. Blitting usually involves two bitmaps, a source
bitmap and a destination bitmap. A raster operation (ROP) is performed to define whether the
iterated color or the overlay color is to be visible or not.
If the masked overlay color matches the color key then the iterated color is selected. Source
Color Keying is activated using the following configuration.
When the Mask register is set to zero, the comparison is disabled and the raster operation is
activated.
If the iterated masked color matches the color key then the overlay color is selected. Destination
Color Keying is activated using the following configuration:
• Select the Overlay to Blit
• Set DSTKEY field to zero
• Activate Color Keying setting CRKEY field to 1
• Program Color Key writing RKEY, GKEY and BKEY fields
• Program Color Mask writing RKEY, GKEY and BKEY fields
• Select the Overlay to Blit
• Set DSTKEY field to one
Video Prioritization Algorithm 1: OVR1 > HEO > BASE
HEO 75 %
OVR1 25 %
SAM9G35
SAM9G35
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