SAM3U1C Atmel Corporation, SAM3U1C Datasheet - Page 966

• Manufacturer Part Number: SAM3U1C
• Manufacturer: Atmel Corporation

Specifications of SAM3U1C

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 96 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 28
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 57
• Ext Interrupts: 57
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 4
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 20
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 39-9. Data IN Transfer for Endpoint with Two Banks
Figure 39-10. Data IN Followed By Status OUT Transfer at the End of a Control Transfer
Note:
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USB Bus
Packets
RX_BK_RDY
(UDPHS_EPTSTAx)
TX_COMPLT
(UDPHS_EPTSTAx)
USB Bus
Packets
Virtual TX_PK_RDY
bank 0
(UDPHS_EPTSTAx)
Virtual TX_PK_RDY
bank 1
(UDPHS_EPTSTAx)
TX_COMPLT
Flag
(UDPHS_EPTSTAx)
FIFO
(DPR)
Bank 0
FIFO
(DPR)
Bank1
A NAK handshake is always generated at the first status stage token.
SAM3U Series
SAM3U Series
Written by
Microcontroller
Token IN
Set by Firmware,
Data Payload Written
in FIFO Bank 0
Microcontroller
Load Data IN Bank 0
Device Sends the Last
Data Payload to Host
Token IN
Data IN
Set by Hardware
Cleared by Hardware
switch to next bank
Microcontroller Load Data IN Bank 1
UDPHS Device Send Bank 0
ACK
Written by
Microcontroller
Read by USB Device
Data IN
Set by Hardware
Token OUT
Device Sends a
Status OUT to Host
Cleared by Firmware
Cleared by Hardware
Data Payload Fully Transmitted
Data OUT (ZLP)
ACK
Interrupt Pending
Interrupt Cleared by Firmware
Token IN
ACK
Microcontroller Load Data IN Bank 0
UDPHS Device Send Bank 1
Written by
Microcontroller
Set by Firmware,
Data Payload Written in FIFO Bank 1
Token OUT
Read by UDPHS Device
Data IN
Set by Hardware
Set by Hardware
Data OUT (ZLP)
Cleared by Firmware
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
ACK
Interrupt
Pending
ACK