AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 401

• Manufacturer Part Number: AT32UC3L0256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L0256

• Flash (kbytes): 256 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

19.6.8.1
Figure 19-33. Master Node with Peripheral DMA Controller (PDCM=0)
Figure 19-34. Master Node with Peripheral DMA Controller (PDCM=1)
32145A–12/2011
WRITE BUFFER
WRITE BUFFER
IDENTIFIER
CHKTYP
CHKDIS
PARDIS
FSDIS
DATA 0
DATA N
NACT
DLC
DATA 1
DLM
DATA 0
DATA N
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Master Node Configuration
Peripheral DMA
Controller
Peripheral DMA
Controller
The Peripheral DMA Controller Mode bit (LINMR.PDCM) allows the user to select configuration:
When NACT=SUBSCRIBE, the read buffer contains the data.
• PDCM=0: LIN configuration must be written to LINMR, it is not stored in the write buffer.
• PDCM=1: LIN configuration is written by the DMA Controller to THR, and is stored in the
write buffer. Since data transfer size is a byte, the transfer is split into two accesses. The first
writes the NACT, PARDIS, CHKDIS, CHKTYP, DLM and FSDIS bits, while the second writes
the DLC field. If NACT=PUBLISH, the write buffer will also contain the Identifier.
Peripheral
RXRDY
bus
Peripheral
RXRDY
bus
NODE ACTION = PUBLISH
CONTROLLER
NODE ACTION = PUBLISH
USART LIN
CONTROLLER
USART LIN
READ BUFFER
IDENTIFIER
WRITE BUFFER
CHKTYP
PARDIS
CHKDIS
FSDIS
NACT
DATA N
DATA 0
DLM
DLC
READ BUFFER
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DATA 0
DATA N
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Peripheral DMA
Peripheral DMA
Controller
AT32UC3L0128/256
Controller
Peripheral
RXRDY
TXRDY
Peripheral
TXRDY
bus
RXRDY
bus
NODE ACTION = SUBSCRIBE
NODE ACTION = SUBSCRIBE
CONTROLLER
CONTROLLER
USART LIN
USART LIN
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