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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN4570 датащи(PDF) 44 Page - STMicroelectronics |
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AN4570 датащи(HTML) 44 Page - STMicroelectronics |
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44 / 46 page  STM32F30xxD/E FMC configuration in 100-pin packages AN4570 44/46 DocID026804 Rev 1 5.2 Interfacing the FMC with a NOR Flash memory In devices that come in 100-pin packages, only Bank 1 (NOR/PSRAM 1) can be used to interface with a NOR Flash memory. This is because the NE2, NE3 and NE4 pins are not available in these packages. Likewise, the A0-A15 pins are not available, so the NOR Flash controller should be used in multiplexed mode to use the data bus for both address and data. In 8-bit muxed mode, the FMC address signals A[15:8] are available on the AD[15:8] pins. Table 11 shows how to connect a NOR Flash memory to the FMC peripheral of devices delivered in 100-pin packages. Table 11. NOR Flash memory connection to the FMC 8-/16-bit NOR/PSRAM pins FMC pins 100-pin package A[15:0] A[15:0] DA[15:0] A[23:16] A[23:16] A[23:16] DQ[15:0] D[15:0] D[15:0] W NWE NWE E NE1/NE2/NE3/NE4 NE1 G NOE NOE ADV NADV NADV R/B NWAIT NWAIT UB, LB NBL[1:0] NBL[1:0] |
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