AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 824

• Manufacturer Part Number: AT32UC3A3128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 30-10. Read Functional Flow Diagram
32072G–11/2011
Write the BlockLenght in the MR.BLKLEN field
Write the block count in the BLKR.BCNT field (if
Number of words to read = (MR.BLKLEN)/4
Write a zero in the DMA.DMAEN bit
Send READ_SINGLE_BLOCK
Read data in the RDR register
Number of words to read = 0 ?
Number of words to read -1
Number of words to read =
Note:
Read the SR register
SR.RXRDY = 0 ?
No
command
necessary)
1. It is assumed that this command has been correctly sent (see
2. This field is also accessible in the BLKR register.
No
(1)
No
Send SET_BLOCKLEN command
Send SELECT/DESELECT_CARD
Command
Yes
(2)
Yes
RETURN
Read with DMA
(1)
to select the card
Write the BlockLenght in the MR.BLKLEN field
write the Data Adress in the DMA Controller
write the (MR.BLKLEN)/4 for Transfer Size
(1)
Write a one in the DMA.DMAEN bit
Send READ_SINGLE_BLOCK
Configure the DMA channel X
Yes
in the DMA Controller
Read the SR register
SR.XFRDONE = 0 ?
command
RETURN
No
(1)
Figure 30-9 on page
Yes
(2)
822).
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