Figure 43. Mode2 Write Access Waveforms; Figure 44. Modeb Write Access Waveforms - ST STM32L4 5 Series Reference Manual

RM0351 Flexible static memory controller (FSMC)

Figure 43. Mode2 write access waveforms

Figure 44. ModeB write access waveforms

The differences with Mode1 are the toggling of NWE and the independent read and write
timings when extended mode is set (Mode B).
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