AT32UC3B064-Z2UR Atmel, AT32UC3B064-Z2UR Datasheet - Page 403
![MCU AVR32 64K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT32UC3B064-Z2UR
Manufacturer Part Number
AT32UC3B064-Z2UR
Description
MCU AVR32 64K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B164-AUR.pdf
(680 pages)
Specifications of AT32UC3B064-Z2UR
Package / Case
64-QFN
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
16K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 403 of 680
- Download datasheet (10Mb)
32059J–12/2010
•Single-block transfer programming example for OUT transfer :
•Programming example for single-block dma transfer with automatic closure for OUT transfer :
The following sequence may be used:
• Configure the targerted endpoint (source) as OUT type, and set the automatic bank switching
• Write the starting destination address in the UDDMAnADDR register.
• There is no need to program the UDDMAnNEXTDESC register.
• Program the channel byte length in the UDDMAnCONTROL register.
• Program the UDDMAnCONTROL according to Row 2 as shown in
The UDDMAnSTATUS.CHEN bit is set indicating that the dma channel is enable.
As soon as an OUT packet is stored inside the endpoint, the UDDMAnSTATUS.CHACTIVE bit
is set to one, indicating that the DMA channel is transfering data from the endpoint to the desti-
nation address until the endpoint is empty or the channel byte length is reached. Once the
endpoint is empty, the UDDMAnSTATUS.CHACTIVE bit is cleared.
Once the DMA channel is completed (i.e : the channel byte length is reached), after one or mul-
tiple processed OUT packet, the UDDMAnCONTROL.CHEN bit is cleared. As a consequence,
the UDDMAnSTATUS.CHEN bit is also cleared, and the UDDMAnSTATUS.EOCHBUFFSTA bit
is set indicating a end of dma channel. If the UDDMAnCONTROL.DMAENDEN bit was set, the
last endpoint bank will be properly released even if there are some residual datas inside, i.e:
OUT packet truncation at the end of DMA buffer when the dma channel byte lenght is not an
integral multiple of the endpoint size.
The idea is to automatically close the DMA transfer at the end of the OUT transaction (received
short packet). The following sequence may be used:
• Configure the targerted endpoint (source) as OUT type, and set the automatic bank switching
• Write the starting destination address in the UDDMAnADDR register.
• There is no need to program the UDDMAnNEXTDESC register.
• Program the channel byte length in the UDDMAnCONTROL register.
• Set the BUFFCLOSEINEN bit in the UDDMAnCONTROL register.
• Program the UDDMAnCONTROL according to Row 2 as shown in
As soon as an OUT packet is stored inside the endpoint, the UDDMAnSTATUS.CHACTIVE bit
is set to one, indicating that the DMA channel is transfering data from the endpoint to the desti-
n a t i o n a d d r e s s u n t i l t h e e n d p o i n t i s e m p t y . O n c e t h e e n d p o i n t i s e m p t y , t h e
UDDMAnSTATUS.CHACTIVE bit is cleared.
After one or multiple processed OUT packet, the DMA channel is completed after sourcing a
short packet. Then, the UDDMAnCONTROL.CHEN bit is cleared. As a consequence, after a few
cycles latency, the UDDMAnSTATUS.CHEN bit is also cleared, and the UDDMAnSTA-
TUS.EOTSTA bit is set indicating that the DMA was closed by a end of USB transaction.
for this endpoint in the UECFGn register to handle multiple OUT packet.
set up a single block transfer.
for this endpoint in the UECFGn register to handle multiple OUT packet.
set up a single block transfer.
Figure 22-6 on page 452
Figure 22-6 on page 452
AT32UC3B
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