39.7.7.1 Write is Controlled by NWE (SMC.M0DE.WRITE M0DE = 1)
The following figure shows the waveforms of a write operation with SMC MODE.WRITE MODE set. The data is put on the bus during the pulse and hold steps of the NWE signal. The internal data buffers are switched to Output mode after the NWE SETUP time, and remain in this mode until the end of the write cycle, regardless of the programmed waveform on NCS.