ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 956

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

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

Figure 39-7. Data IN Transfer for Endpoint with One Bank
Figure 39-8. Data IN Transfer for Endpoint with Two Banks
956
956
USB Bus
Packets
TX_PK_RDY
Flag
(UDPHS_EPTSTAx)
TX_COMPLT Flag
(UDPHS_EPTSTAx)
FIFO
Content
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
SAM3U Series
SAM3U Series
Written by
Microcontroller
Set by Firmware,
Data Payload Written
in FIFO Bank 0
Microcontroller
Load Data IN Bank 0
Token IN
Set by firmware
Prevous Data IN TX
Token IN
Data IN 1
Data IN 1
Cleared by Hardware
switch to next bank
Microcontroller Load Data IN Bank 1
UDPHS Device Send Bank 0
Cleared by hardware
Set by hardware
Written by
Microcontroller
Read by USB Device
Data IN
ACK
Set by Hardware
DPR access by firmware
Microcontroller Loads Data in FIFO
Token IN
Load in progress
Interrupt Pending
Cleared by Hardware
Data Payload Fully Transmitted
ACK
NAK
Interrupt Pending
Set by the firmware
Interrupt Cleared by Firmware
Token IN
Token IN
Cleared by firmware
Microcontroller Load Data IN Bank 0
UDPHS Device Send Bank 1
Written by
Microcontroller
Set by Firmware,
Data Payload Written in FIFO Bank 1
Data is Sent on USB Bus
DPR access by hardware
Read by UDPHS Device
Data IN 2
Payload in FIFO
Data IN
Data IN 2
Set by Hardware
Cleared by hardware
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Cleared by firmware
Interrupt Pending
ACK
ACK