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SMS01GAF Datasheet(PDF) 41 Page - Numonyx B.V |
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SMS01GAF Datasheet(HTML) 41 Page - Numonyx B.V |
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41 / 61 page ![]() SMSxxxAF, SMSxxxFF, SMSxxxBF Timings 41/61 Figure 30. STOP_TRANSMISSION Received After Last Data Block with Card Idle 6.4.1 Erase, Set and Clear Write Protect Timings The host must first tag the start (CMD32) and end (CMD33) addresses of the range to be erased. The Erase command (CMD38), once issued, will erase all the selected write blocks. Similarly, Set and Clear Write Protect commands start a programming operation as well. The card will signal "busy" (by pulling the DAT line Low) for the duration of the erase or program operation. The bus transaction timings are the same as those given for the STOP_TRANSMISSION Command in Figure 30. 6.4.2 Re-selecting a busy card When a busy card in Disabled state is reselected, it restores its busy signaling on the data line. The timing diagram for this command / response / busy transaction is the same as that for STOP_TRANSMISSION command illustrated in Figure 30. 6.5 Timing Values Figure 25 gives all timings. ai10064 S T CONTENT CRC E Z * * * ST Host Command Host Command Card Response NCR Cycles CONTENT S T CONTENT CRC E CMD Z P L S Z ZZ Card is programming DAT E Z Z Z Z Z * * * * * * * * * * * * * * * * * * * * * P L Z ZZ Z Z Z Z Z Z ZZ Table 25. Timing Values Parameter Min Max Unit NCR 2 64 clock cycle NID 5 5 clock cycle NAC 2TAAC + NSAC clock cycle NRC 8 - clock cycle NCC 8 - clock cycle NWR 2 - clock cycle |
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