SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 635
SAM9XE512
Manufacturer Part Number
SAM9XE512
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9260.pdf
(290 pages)
2.SAM9261.pdf
(248 pages)
3.SAM9XE128.pdf
(860 pages)
4.SAM9XE128.pdf
(48 pages)
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
- SAM9260 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9XE128 PDF datasheet #3
- SAM9XE128 PDF datasheet #4
- Current page: 635 of 860
- Download datasheet (13Mb)
Figure 37-11. Write Functional Flow Diagram
Notes:
6254C–ATARM–22-Jan-10
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).
Number of words to write = BlockLength/4
Reset the PDCMODE bit
MCI_MR &= ~PDCMODE
Set the block length (in bytes)
MCI_MR |= (BlockLenght <<16) (2)
Set the block count (if necessary)
MCI_BLKR |= (BlockCount << 0)
Number of words to write = 0 ?
Read status register MCI_SR
Send WRITE_SINGLE_BLOCK
Number of words to write =
Number of words to write -1
MCI_TDR = Data to write
TXRDY = 0?
No
Poll the bit
command (1)
No
No
Send SET_BLOCKLEN command (1)
Send SELECT/DESELECT_CARD
command (1) to select the card
Yes
AT91SAM9XE128/256/512 Preliminary
Yes
RETURN
Write using PDC
Figure
Configure the PDC channel
MCI_TPR = Data Buffer Address to write
MCI_TCR = BlockLength/4
Yes
37-9).
Set the PDCMODE bit
MCI_MR |= PDCMODE
Set the block length (in bytes)
MCI_MR |= (BlockLength << 16)
Set the block count (if necessary)
MCI_BLKR |= (BlockCount << 0)
Send WRITE_SINGLE_BLOCK
Read status register MCI_SR
MCI_PTCR = TXTEN
NOTBUSY= 0?
command
Poll the bit
RETURN
No
(1)
(2)
Yes
635
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