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SMS01GAF Datasheet(PDF) 50 Page - Numonyx B.V |
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SMS01GAF Datasheet(HTML) 50 Page - Numonyx B.V |
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50 / 61 page  Serial peripheral interface (SPI) mode SMSxxxAF, SMSxxxFF, SMSxxxBF 50/61 Figure 39. Card Response to Host Command 7.6.1 Data Read Timings The timing diagram for deselecting the card by de-asserting CS after the last card response corresponds to a standard command-to-response timing diagram as illustrated in Figure 39 During open-ended Multiple Block Read operations, the STOP_TRANSMISSION command may be sent while the card is transmitting data to the host. In this case, the card stops transmitting the data block within two clock cycles (the bits in the first Byte may not all be set to '1') and returns the response message after a time measured in numbers of clock cycles (NCR). See Figure 40., for details. For timings, refer to Table 25. Figure 40. Single Block Read Operation Figure 41. STOP_TRANSMISSION between Blocks During Multiple Block Read L L L L * * * * * * * * * * * * * * * * * * * * * CS HH H H HH X XX Data In L * * * * * * * * * * L H HH L 6 Byte Command ai10073 H H H H H HH ZZ 1 or 2 Byte Response H * * H * * * * * * * * * Data Out H HH NRC H H HH H H HH L L L * * * * * * * * * * * * * * * * * * * * * CS XH H H HH X XX Data In H * * * * * * * * * * * * H H HH H Read Command ai10074 Z H Z H H HZ ZZ Card Response H * * H * * * * * * * Data Out H HH NCR H X L L L H * * H H * H Data Block H * * H NCS NEC NAC L L * * * * * * * * * * * * * * * * * * * * * CS X H H HH Data In L L L LL H H * H Read Command ai10075 Z Z Card Response * * * * Data Out HH H NCS NCR H H H H HH HH H H * H H H * H * * * * * * * * * * * STOP_TRAN. CMD Data Block H * H H * H Data Block Card Response NAC NAC NCR |
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