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W25Q16JVSSIQ Datasheet(PDF) 20 Page - Winbond |
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W25Q16JVSSIQ Datasheet(HTML) 20 Page - Winbond |
20 / 75 page W25Q16JV - 19 - 9. INSTRUCTIONS The Standard/Dual/Quad SPI instruction set of the W25Q16JV consists of 48 basic instructions that are fully controlled through the SPI bus (see Instruction Set Table1-2). Instructions are initiated with the falling edge of Chip Select (/CS). The first byte of data clocked into the DI input provides the instruction code. Data on the DI input is sampled on the rising edge of clock with most significant bit (MSB) first. Instructions vary in length from a single byte to several bytes and may be followed by address bytes, data bytes, dummy bytes (don’t care), and in some cases, a combination. Instructions are completed with the rising edge of edge /CS. Clock relative timing diagrams for each instruction are included in Figures 5 through 57. All read instructions can be completed after any clocked bit. However, all instructions that Write, Program or Erase must complete on a byte boundary (/CS driven high after a full 8-bits have been clocked) otherwise the instruction will be ignored. This feature further protects the device from inadvertent writes. Additionally, while the memory is being programmed or erased, or when the Status Register is being written, all instructions except for Read Status Register will be ignored until the program or erase cycle has completed. 9.1 Device ID and Instruction Set Tables Manufacturer and Device Identification MANUFACTURER ID (MF7 - MF0) Winbond Serial Flash EFh Device ID (ID7 - ID0) (ID15 - ID0) Instruction ABh, 90h, 92h, 94h 9Fh W25Q16JV-IQ/JQ 14h 4015h W25Q16JV-IM*/JM* 14h 7015h Note: For DTR, QPI supporting, please refer to W25Q16JV DTR datasheet. |
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