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Nordic Semiconductor /nrf52840 /QSPI /IFCONFIG1

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Interpret as IFCONFIG1

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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 0SCKDELAY0 (Exit)DPMEN 0 (MODE0)SPIMODE 0SCKFREQ

DPMEN=Exit, SPIMODE=MODE0

Description

Interface configuration.

Fields

SCKDELAY

Minimum amount of time that the CSN pin must stay high before it can go low again. Value is specified in number of 16 MHz periods (62.5 ns).
DPMEN

Enter/exit deep power-down mode (DPM) for external flash memory.

0 (Exit): Exit DPM.

1 (Enter): Enter DPM.
SPIMODE

Select SPI mode.

0 (MODE0): Mode 0: Data are captured on the clock rising edge and data is output on a falling edge. Base level of clock is 0 (CPOL=0, CPHA=0).

1 (MODE3): Mode 3: Data are captured on the clock falling edge and data is output on a rising edge. Base level of clock is 1 (CPOL=1, CPHA=1).
SCKFREQ

SCK frequency is given as 32 MHz / (SCKFREQ + 1).

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Register Reference

https://github.com/cmsis-svd/cmsis-svd-data