Nordic Semiconductor /nrf5340_application /QSPI_NS /IFCONFIG1

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as IFCONFIG1

31282724232019161512118743000000000000000000000000000000000000000000SCKDELAY0 (Exit)DPMEN0 (MODE0)SPIMODE0SCKFREQ

SPIMODE=MODE0, DPMEN=Exit

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 rising edge and data is output on a falling edge. Base level of clock is 1 (CPOL=1, CPHA=1).

SCKFREQ

SCK frequency is derived from PCLK192M with SCK frequency = PCLK192M / (2*(SCKFREQ + 1)).

Links

() ()