Reads data from flash memory using SPI programming
Table 154. SPI Read Flash command format
Field | Size | Description |
---|---|---|
SPI_CMD_READ_FLASH | 1 byte | Command ID |
NumBytes | 2 byte | Total number of bytes to read, MSB first |
cmd1 | 1 byte | Read Program Memory command byte #1. Low/high byte selection bit (bit 3) is handled by firmware. |
Response:
Table 155. SPI Read Flash response
Field | Size | Description |
---|---|---|
SPI_CMD_READ_FLASH | 1 byte | Command ID |
Status1 | 1 byte | SPI_STATUS_CMD_OK |
Data | 1 byte | Data read from flash |
Status | 1 byte | SPI_STATUS_CMD_OK or SPI_STATUS_RDY_BSY_TOUT |