SAM9X25 Atmel Corporation, SAM9X25 Datasheet - Page 549

• Manufacturer Part Number: SAM9X25
• Manufacturer: Atmel Corporation

Specifications of SAM9X25

• Flash (kbytes): 0 Kbytes
• Pin Count: 217
• 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
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 2
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• 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: DDR/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 33-12. Data OUT Followed by Status IN Transfer
Note:
Figure 33-13. Autovalid with DMA
Note:
11054A–ATARM–27-Jul-11
11054A–ATARM–27-Jul-11
Before proceeding to the status stage, the software should determine that there is no risk of extra data from the host (data
stage). If not certain (non-predictable data stage length), then the software should wait for a NAK-IN interrupt before proceeding
to the status stage. This precaution should be taken to avoid collision in the FIFO.
In the illustration above Autovalid validates a bank as full, although this might not be the case, in order to continue processing
data and to send to DMA.
Bank (system)
Write
Bank (usb)
Virtual TX_PK_RDY Bank 0
Virtual TX_PK_RDY Bank 1
TX_PK_RDY
(Virtual 0 & Virtual 1)
USB Bus
Packets
RX_BK_RDY
(UDPHS_EPTSTAx)
TX_PK_RDY
(UDPHS_EPTSTAx)
Bank 1
Bank 0
write bank 0
Bank 0
Token OUT
Host Sends the Last
Data Payload to the Device
bank 0 is full
Set by Hardware
write bank 1
Bank 1
Data OUT
Set by Firmware
Bank 0
bank 1 is full
Interrupt Pending
ACK
IN data 0
Bank 0
Token IN
Device Sends a Status IN
to the Host
Cleared by Firmware
write bank 0
bank 0 is full
Bank 1
Data IN
IN data 1
Bank 1
ACK
Bank 0
Clear by Hardware
IN data 0
SAM9X25
SAM9X25
Bank 1
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