AT91SAM9G10-EK Atmel, AT91SAM9G10-EK Datasheet - Page 561

• Manufacturer Part Number: AT91SAM9G10-EK
• Description: KIT DEV FOR SAM9G10 ARM
• Manufacturer: Atmel
• Type: MCUr

Specifications of AT91SAM9G10-EK

• Contents: Board, Cables, Power Supply
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Mcu Supported Families: AT91SAM9G10, ARM926EJ-S
• Tool / Board Applications: Microcontroller
• Rohs Compliant: Yes
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 35-9. Write Functional Flow Diagram
Note:
6462A–ATARM–03-Jun-09
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 theDMAEN bit
MCI_MR &= ~DMAEN
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
Yes
Write using HDMA
RETURN
Figure
Configure the DMA channel X
HDMA_DADDRX = Data Address to write
HDMA_BTSIZE = BlockLength/4
Yes
35-7).
Set the DMAEN bit
MCI_MR |= DMAEN
Set the block length (in bytes)
MCI_BLKR |= (BlockLength << 16) (2)
Send WRITE_SINGLE_BLOCK
Read status register MCI_SR
HDMA_CHEN[X] = TRUE
XFRDONE = 0?
command (1)
Poll the bit
RETURN
No
AT91SAM9G10
Yes
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