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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD813F2 датащи(PDF) 19 Page - STMicroelectronics |
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PSD813F2 датащи(HTML) 19 Page - STMicroelectronics |
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19 / 110 page  19/110 PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2 DETAILED OPERATION As shown in Figure 5., page 14, the PSD consists of six major types of functional blocks: ■ Memory Blocks ■ PLD Blocks ■ MCU Bus Interface ■ I/O Ports ■ Power Management Unit (PMU) ■ JTAG Interface The functions of each block are described in the following sections. Many of the blocks perform multiple functions, and are user configurable. Memory Blocks The PSD has the following memory blocks: – Primary Flash memory – Optional Secondary Flash memory – Optional SRAM The Memory Select signals for these blocks origi- nate from the Decode PLD (DPLD) and are user- defined in PSDsoft Express. Table 8. Memory Block Size and Organization Primary Flash Memory Secondary Flash Memory SRAM Sector Number Sector Size (Bytes) Sector Select Signal Sector Size (Bytes) Sector Select Signal SRAM Size (Bytes) SRAM Select Signal 0 32K FS0 16K CSBOOT0 256K RS0 1 32K FS1 16K CSBOOT1 2 32K FS2 16K CSBOOT2 3 32K FS3 16K CSBOOT3 4 32K FS4 5 32K FS5 6 32K FS6 7 32K FS7 Total 512K 8 Sectors 64K 4 Sectors 256K |
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