AT91SAM9M10-CU Atmel, AT91SAM9M10-CU Datasheet - Page 1159

• Manufacturer Part Number: AT91SAM9M10-CU
• Description: IC MCU 16/32BIT ARM9 324TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9M10-CU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 400MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, LCD, POR, PWM, WDT
• Number Of I /o: 160
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: ROM
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 1.1 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 324-TFBGA
• Processor Series: AT91SAMx
• Core: ARM926EJ-S
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 133 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 2 x 16 bit
• Operating Supply Voltage: 1.65 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM9M10-G45-EK
• Controller Family/series: AT91
• No. Of I/o's: 160
• Ram Memory Size: 64KB
• Cpu Speed: 400MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• Cpu Family: AT91
• Device Core: ARM926EJ-S
• Device Core Size: 32b
• Frequency (max): 400MHz
• Total Internal Ram Size: 64KB
• # I/os (max): 160
• Number Of Timers - General Purpose: 7
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Operating Supply Voltage (max): 1.1/1.95/3.6V
• Operating Supply Voltage (min): 0.9/1.65/1.8/3V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 324
• Package Type: TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 46-2. Multi-format Decoder and External Memory Data Flow in VLC Mode
46.3.3
6355B–ATARM–21-Jun-10
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
AT91SAM9M10
2
AHB Bus
1159