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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD835G2 датащи(PDF) 24 Page - STMicroelectronics |
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PSD835G2 датащи(HTML) 24 Page - STMicroelectronics |
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24 / 102 page  PSD835G2 24/102 DETAILED OPERATION As shown in Figure 3., page 15, 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/ISP 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 – Secondary Flash memory –SRAM The Memory Select signals for these blocks origi- nate from the Decode PLD (DPLD) and are user- defined in PSDsoft. Table 27. 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 64K FS0 8K CSBOOT0 16K RS0 1 64K FS1 8K CSBOOT1 2 64K FS2 8K CSBOOT2 3 64K FS3 8K CSBOOT3 4 64K FS4 5 64K FS5 6 64K FS6 7 64K FS7 Total 512K 8 Sectors 32K 4 Sectors 16K |
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