Atmel Evaluation Kit AT91SAM9X35-EK AT91SAM9X35-EK Data Sheet
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Product codes
AT91SAM9X35-EK
601
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
34.12 HSMCI Transfer Done Timings
34.12.1 Definition
The XFRDONE flag in the HSMCI_SR indicates exactly when the read or write sequence is finished.
34.12.2 Read Access
During a read access, the XFRDONE flag behaves as shown in
Figure 34-11. XFRDONE During a Read Access
34.12.3 Write Access
During a write access, the XFRDONE flag behaves as shown in
.
Figure 34-12. XFRDONE During a Write Access
CMD line
HSMCI read CMD
Card response
CMDRDY flag
Data
1st Block
Last Block
Not busy flag
XFRDONE flag
The CMDRDY flag is released 8 tbit after the end of the card response.
CMD line
Card response
CMDRDY flag
Data bus - D0
1st Block
Not busy flag
XFRDONE flag
The CMDRDY flag is released 8 tbit after the end of the card response.
Last Block
D0
1st Block
Last Block
D0 is tied by the card
D0 is released
HSMCI write CMD