AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 826

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• 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
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 30-11. Write 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 write = BlockLength/4
Write Data to transmit in the TDR register
Write a zero in the DMA.DMAEN bit
Number of words to write = 0 ?
Send WRITE_SINGLE_BLOCK
Number of words to write - 1
Number of words to write =
Read the SR register
Note:
SR.TXRDY = 0 ?
No
command
necessary)
No
1. It is assumed that this command has been correctly sent (see
2. This field is also accessible in BLKR register.
(1)
No
Send SET_BLOCKLEN command
Send SELECT/DESELECT_CARD
Yes
Command
(2)
Yes
RETURN
Write using DMA
(1)
to select the card
write the (MR.BLKLEN)/4 for Transfer Size in the
Write the BlockLenght in the MR.BLKLEN field
(1)
write the Data Adress in the DMA Controller
Yes
Send WRITE_SINGLE_BLOCK
Write a one in the DMA.DMAEN bit
Configure the DMA channel X
Enable the DMA channel X
Read the SR register
SR.NOTBUSY = 0 ?
DMA Controller
command
RETURN
(1)
No
Figure 30-9 on page
Yes
(2)
822).
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