SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 636

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

Specifications of SAM9XE512

• Flash (kbytes): 512 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 180 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 96
• Ext Interrupts: 96
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 6
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 312
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.65 to 1.95
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

6254C–ATARM–22-Jan-10
The following flowchart,
the PDC. Polling or interrupt method can be used to wait for the end of write according to the
contents of the Interrupt Mask Register (MCI_IMR).
Figure 37-12. Multiple Write Functional Flow Diagram
Notes:
1. It is assumed that this command has been correctly sent (see
2. This field is also accessible in the MCI Block Register (MCI_BLKR).
AT91SAM9XE128/256/512 Preliminary
(Figure
Configure the PDC channel
MCI_TPR = Data Buffer Address to write
MCI_TCR = BlockLength/4
37-12) shows how to manage a multiple write block transfer with
Send SET_BLOCKLEN command
Send SELECT/DESELECT_CARD
Set the PDCMODE bit
MCI_MR |= PDCMODE
Set the block length (in bytes)
MCI_MR |= (BlockLength << 16) (2)
Set the block count (if necessary)
MCI_BLKR |= (BlockCount << 0)
Send WRITE_MULTIPLE_BLOCK
command (1) to select the card
Send STOP_TRANSMISSION
Read status register MCI_SR
MCI_PTCR = TXTEN
NOTBUSY = 0?
command (1)
command
BLKE = 0?
Poll the bit
Poll the bit
RETURN
No
No
(1)
(1)
Yes
Yes
Figure
37-9).
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