Figure 33. Modea Read Access Waveforms; Figure 34. Modea Write Access Waveforms - STMicroelectronics RM0365 Reference Manual

Flexible static memory controller (FSMC)
Mode A - SRAM/PSRAM (CRAM) OE toggling
1. NBL[1:0] are driven low during the read access
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Figure 33. ModeA read access waveforms

Figure 34. ModeA write access waveforms

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RM0365