AT32UC3L-EK Atmel, AT32UC3L-EK Datasheet - Page 396

• Manufacturer Part Number: AT32UC3L-EK
• Description: KIT EVAL AVR32 UC3 MCU
• Manufacturer: Atmel
• Type: MCUr

Specifications of AT32UC3L-EK

• Contents: *
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: UC3L
• Kit Contents: Board
• Features: USB / Battery Powered, Board Controller / Bootloader
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Tool Type: Starter Kit
• Cpu Core: AVR 8
• Data Bus Width: 8 bit
• Processor Series: AT32
• Processor To Be Evaluated: AT32UC3L064
• Interface Type: USB, Capacitive Touch
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 19-33. Master Node with Peripheral DMA Controller (PDCM=0)
19.6.8.2
Figure 19-34. Slave Node with Peripheral DMA Controller
32099F–11/2010
WRITE BUFFER
WRITE BUFFER
DA TA 0
DA TA N
DATA 1
DATA 0
DATA N
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Slave Node Configuration
Peripheral DMA
Peripheral DMA
Controller
Controller
In this configuration, the Peripheral DMA Controller transfers only the DATA. The Identifier must
be read by the user in the LIN Identifier register (LINIR). The LIN mode must be written by the
user in the LIN Mode register (LINMR).
The WRITE buffer contains the DATA if the USART sends the response (NACT=PUBLISH).
T h e R E A D b u f f e r c o n t a i n s t h e D A T A i f t h e U S A R T r e c e i v e s t h e r e s p o n s e
(NACT=SUBSCRIBE).
IMPORTANT: if the NACT configuration for a frame is PUBLISH, the US_LINMR register, must
be write with NACT=PUBLISH even if this field is already correctly configured, that in order to set
the TXREADY flag and the corresponding Peripheral DMA Controller write transfer request.
P eriphe ral
TXRDY
Peripheral
bus
RXRDY
bus
NODE ACTION = PUBLISH
CONTROLLER
USART LIN
CONTROLLER
USART LIN
READ BUFFER
READ BUFFER
DATA 0
DA TA N
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DATA 0
DATA N
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Peripheral DMA
AT32UC3L016/32/64
Controller
Peripheral DMA
Controller
Peripheral
TXRDY
RXRDY
bus
P eripheral
RXRDY
Bus
NODE ACTION = SUBSCRIBE
CONTROLLER
NACT = SUBSCRIBE
USART LIN
CONTROLLER
USART LIN
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