data_proto=Single, addr_proto=Single, cmd_proto=Single
SPI Flash Instruction Format Register
| cmd_en | Enable sending of command |
| pad_cnt | Number of dummy cycles |
| addr_len | Number of address bytes (0 to 4) |
| cmd_proto | Protocol for transmitting command 0 (Single): DQ0 (MOSI), DQ1 (MISO) 1 (Dual): DQ0, DQ1 2 (Quad): DQ0, DQ1, DQ2, DQ3 |
| addr_proto | Protocol for transmitting address and padding 0 (Single): DQ0 (MOSI), DQ1 (MISO) 1 (Dual): DQ0, DQ1 2 (Quad): DQ0, DQ1, DQ2, DQ3 |
| data_proto | Protocol for receiving data bytes 0 (Single): DQ0 (MOSI), DQ1 (MISO) 1 (Dual): DQ0, DQ1 2 (Quad): DQ0, DQ1, DQ2, DQ3 |
| cmd_code | Value of command byte |
| pad_code | First 8 bits to transmit during dummy cycles |