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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMPR4937 датащи(PDF) 112 Page - Toshiba Semiconductor |
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TMPR4937 датащи(HTML) 112 Page - Toshiba Semiconductor |
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112 / 552 page  Chapter 7 External Bus Controller 7-12 7.3.6.4 Page Mode When in this mode, the ACK*/Ready pin becomes ACK* output when it is in the Dynamic mode. When it is in the ACK*/Ready Static mode, the ACK*/Ready signal becomes HiZ. Wait cycles are inserted into the access cycle according to the values of EBCCRn.PWT and EBCCRn.WT. The Single access protocol in Page mode is identical to that of Normal mode, except the number of wait cycles inserted. The Wait cycle count in the first access cycle of Single access or Burst access is determined by the EBCCRn.WT value. The Wait cycle count can be set from 0 to 15. The Wait cycle count of subsequent Burst cycles is determined by the EBCCRn.PWT value. The Wait cycle count can be set from 0 to 3. Figure 7.3.4 Page Mode (Burst Access) SYSCLK CE* ADDR [19:0] OE* DATA [31:0] ACK*/READY (Output) EBCCRn.WT=2 EBCCRn.PWT=1 EBCCRn.PWT=1 EBCCRn.PWT=1 |
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