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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATXP032 датащи(PDF) 12 Page - Dialog Semiconductor |
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ATXP032 датащи(HTML) 12 Page - Dialog Semiconductor |
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12 / 113 page  10 ATXP032 DS-ATXP032–114I–4-2020 Figure 5-1. Memory Architecture Diagram 6. Device Operation 6.1 Standard SPI Mode The ATXP032 is controlled by a set of instructions that are sent from a host controller, commonly referred to as the SPI master. The SPI master communicates with the ATXP032 via the SPI bus which is comprised of four signal lines: Chip Select (CS), Serial Clock (SCK), Serial Input (SI), and Serial Output (SO). The SPI protocol defines a total of four modes of operation (mode 0, 1, 2, or 3) with each mode differing in respect to the SCK polarity and phase and how the polarity and phase control the flow of data on the SPI bus. The ATXP032 supports the two most common modes, SPI modes 0 and 3 for the standard SPI (1-1-1). For octal mode, only SPI mode 0 is supported. The only difference between SPI modes 0 and 3 is the polarity of the SCK signal when in the inactive state (when the SPI master is in standby mode and not transferring any data). With SPI modes 0 and 3, data is always latched in on the rising edge of SCK and always output on the falling edge of SCK. The default SPI mode on power up is the traditional (1-1-1) SPI mode. Note that the device always wakes up in (1-1-1) SPI mode when coming out of ultra-deep power-down. The Enter Octal Mode (E8h) command, or directly writing the bit in Status/Control Register Byte 2, is used to enter octal mode. The Return to Standard SPI Mode (FFh) instruction, or directly writing the bit in Status/Control Register Byte 2, can be used to switch the device back to standard SPI mode. The maximum clock speed f CLK supported for standard SPI mode is lower than the maximum clock speed fCLK supported for octal mode. See Section 14.5, AC Characteristics, Maximum Clock Frequencies — 85 oC for details. Sector 0 = 1024 pages 262,144 bytes Block = 4096 bytes 16 Pages Page = 256 bytes Page 0 Page 1 Page 14 Page 15 Page 16 Page 17 Page 16,382 Page 16,383 Page 30 Page 31 Page 32 Page 33 Page 34 Sector Architecture Block Architecture Page Architecture Block 0 Block 1 Block 14 Block 63 Block 64 Block 65 Block 1022 Block 1023 Block 126 Block 127 Block 960 Block 961 Sector 15 = 1024 pages 262,144 bytes Sector 1 = 1024 pages 262,144 bytes Sector 14 = 1024 pages 262,144 bytes Sector 2 = 1024 pages 262,144 bytes |
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