| 摘要 |
<p>A method for identifying Serial Peripheral Interface (SPI) compatible serial interface memory devices. A microprocessor sends a single command (16) requesting identification information to an SPI device installed on the SPI bus. A byte string (18), including the JEDEC manufacturer ID (36), device ID (34), and any extended device information (18), is sent back to the microprocessor. The byte string may include one or more continuation codes when the manufacturer ID exceeds 1 byte. The byte string (18) also includes one byte (26) indicating how many bytes of extended device information should be read by the microprocessor. The identification process, issuing the command (16) and receiving the reply (18), is completed in one operation.</p> |
