ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 957
ATSAM3U-EK
Manufacturer Part Number
ATSAM3U-EK
Description
KIT EVAL FOR AT91SAM3U CORTEX
Manufacturer
Atmel
Type
MCUr
Datasheets
1.ATSAM3U-EK.pdf
(2 pages)
2.ATSAM3U-EK.pdf
(61 pages)
3.ATSAM3U-EK.pdf
(1171 pages)
4.ATSAM3U-EK.pdf
(53 pages)
Specifications of ATSAM3U-EK
Contents
Board
Processor To Be Evaluated
SAM3U
Data Bus Width
32 bit
Interface Type
RS-232, USB
Operating Supply Voltage
3 V
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex - M3
Silicon Core Number
SAM3U4E
Silicon Family Name
SAM3U
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT91SAM3U
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3U-EK
Manufacturer:
Atmel
Quantity:
10
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Figure 39-9. Data IN Followed By Status OUT Transfer at the End of a Control Transfer
Note:
Figure 39-10. Data OUT Followed by Status IN Transfer
Note:
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
USB Bus
Packets
RX_BK_RDY
(UDPHS_EPTSTAx)
TX_COMPLT
(UDPHS_EPTSTAx)
A NAK handshake is always generated at the first status stage token.
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.
Token IN
USB Bus
Packets
RX_BK_RDY
(UDPHS_EPTSTAx)
TX_PK_RDY
(UDPHS_EPTSTAx)
Device Sends the Last
Data Payload to Host
Data IN
Set by Hardware
Token OUT
Host Sends the Last
Data Payload to the Device
Set by Hardware
ACK
Data OUT
Set by Firmware
Token OUT
Device Sends a
Status OUT to Host
Cleared by Firmware
Interrupt Pending
ACK
Data OUT (ZLP)
Token IN
Device Sends a Status IN
to the Host
Cleared by Firmware
Data IN
ACK
Token OUT
ACK
Set by Hardware
Clear by Hardware
Data OUT (ZLP)
SAM3U Series
SAM3U Series
Cleared by Firmware
Interrupt
Pending
ACK
957
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