SiFive /sifive_hifive_unmatched_a00 /sifive_spi0_1 /ffmt

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Interpret as ffmt

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (cmd_en)cmd_en 0addr_len 0pad_cnt0cmd_proto 0addr_proto 0data_proto 0cmd_code0pad_code

Description

SPI flash instruction format

Fields

cmd_en

Enable sending of command

addr_len

Number of address bytes (0 to 4)

pad_cnt

Number of dummy cycles

cmd_proto

Protocol for transmitting command

addr_proto

Protocol for transmitting address and padding

data_proto

Protocol for receiving data bytes

cmd_code

Value of command byte

pad_code

First 8 bits to transmit during dummy cycles

Links

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