Figure 42. Mode D Read Access Waveforms; Figure 43. Mode D Write Access Waveforms - ST STM32F412 Reference Manual

Flexible static memory controller (FSMC)
Mode D - asynchronous access with extended address
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Figure 42. Mode D read access waveforms

A[25:0]
NADV
NEx
NOE
NWE
High
D[15:0]
ADDSET
HCLK cycles

Figure 43. Mode D write access waveforms

Memory transaction
ADDHLD
HCLK cycles
RM0402 Rev 6
data driven
by memory
DATAST
HCLK cycles
RM0402
MS34486V1