SAM9G35_14 Datasheet, PDF (637/1293 Pages) ATMEL Corporation – ARM-based Embedded MPU

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.
Figure 34-11.XFRDONE During a Read Access
CMD line
HSMCI read CMD
Card response
CMDRDY flag
The CMDRDY flag is released 8 tbit after the end of the card response.
Data
Not busy flag
XFRDONE flag
1st Block
Last Block
34.12.3 Write Access
During a write access, the XFRDONE flag behaves as shown in Figure 34-12.
Figure 34-12.XFRDONE During a Write Access
CMD line
HSMCI write CMD
Card response
CMDRDY flag
The CMDRDY flag is released 8 tbit after the end of the card response.
D0
Data bus - D0
Not busy flag
XFRDONE flag
1st Block
1st Block
Last Block
D0 is tied by the card
D0 is released
Last Block
SAM9G35 [DATASHEET]
11053E–ATARM–10-Mar-2014
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