SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 966
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SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
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
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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:
966
966
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
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