at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 605

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

AT91SAM9G20 Preliminary
• PDCMODE: PDC-oriented Mode
0 = Disables PDC transfer
1 = Enables PDC transfer. In this case, UNRE and OVRE flags in the MCI Mode Register (MCI_SR) are deactivated after
the PDC transfer has been completed.
• BLKLEN: Data Block Length
This field determines the size of the data block.
This field is also accessible in the MCI Block Register (MCI_BLKR).
Bits 16 and 17 must be set to 0 if PDCFBYTE is disabled.
Note:
In SDIO Byte mode, BLKLEN field is not used.
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6384B–ATARM–15-Dec-08