SAM9M10 Atmel Corporation, SAM9M10 Datasheet - Page 1149

• Manufacturer Part Number: SAM9M10
• Manufacturer: Atmel Corporation

Specifications of SAM9M10

• 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: Yes
• 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

Figure 46-2. Multi-format Decoder and External Memory Data Flow in VLC Mode
46.3.3
6355D–ATARM–7-Sep-11
Decoder Data Flow, Software Performs Entropy Decoding (RLC Mode)
External Memory
Post-Processed
Picture Buffer
Picture Buffer
Unit Stream
H.264 NAL
Decoded
In this case, the decoder software starts decoding the first picture by parsing the stream headers
(1), and by performing entropy decoding. Software then writes the following items to external
memory:
Last step for the software is to write the hardware control registers and to enable the hardware
(6).
Hardware decodes the picture by buffering control data for several macroblocks at a time, and
then reads appropriate amount of RLC data, differential motion vectors and intra modes depend-
ing on each macroblock type (7)–(10). Hardware will also read the reference pictures (previously
decoded pictures) as required (11). Hardware writes decoded (in-loop filtered, if H.264) output
picture to memory one macroblock at a time (12). When the picture has been fully decoded,
hardware gives an interrupt and returns to initial state.
If post-processing is enabled, one or two additional image transfer operations will take place. If
the decoded images are in display order (i.e. no picture re-ordering has been made when
encoding the sequence), and rotation is not used, PP will process the pictures in pipeline with
the decoder. Otherwise, it will first have to read the decoded image that is to be displayed next
from the memory (13), and then write back the processed image (14).
• Run-length-coded (RLC) data (2)
• Differential motion vectors (3)
• Intra 4x4 prediction modes (in H.264) or separate DC coefficients (in MPEG-4, if the stream
• Macroblock control data (5)
is using data partitioning) (4)
(6)
1
3
4
5
7
ARM Processor Core
Multiformat HW
Decoder Core
2
AHB Bus
SAM9M10
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