SPI memory map page selection – spi_mem_page In SPI mode complete memory page is accessed using page 0 & page 1. Register spi_mem_page is used for page selection. After power-on, spi_mem_page is in its reset state and page 0(0x00 to 0x7F) will be active. Page1 (0x7F to 0xFF) will be active on setting spi_mem_page. Please refer Table 21 for better understanding. General remarks In SPI mode complete memory map is accessed using page 0 and page 1. Register spi_mem_page is used for page selection. After power-on, spi_mem_page is in its reset state and page 0 (0x80 to 0xFF) will be active. Page 1 (0x00 to 0x7F) will be active on setting spi_mem_page to 1. Are the descriptions of page in these two paragraphs in the data sheet contradictory? The page change I understand is to write the address name: Status is (0X73), the command is 0X10 (the fourth bit is guaranteed to be 1). Then how to read the status of the page? Through write operation: write data at address (0X73), read out its Reset state as 0X00 is page 0, 0X01 is page 1 (this is how I understand it). Is such a logic correct? The problem is that I change the page through the above logic, and the address is still 00. I don’t know whether the page address has not been changed or the page status cannot be read.
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