Figure 439. Mode2 Write Accesses; Figure 440. Mode B Write Accesses - STMicroelectronics STM32F405 Reference Manual

Flexible static memory controller (FSMC)
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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Figure 439. Mode2 write accesses

A[25:0]
NADV
NEx
NOE
NWE
D[15:0]

Figure 440. Mode B write accesses

A[25:0]
NADV
NEx
NOE
NWE
D[15:0]
HCLK cycles
DocID018909 Rev 11
Memory transaction
ADDSET
HCLK cycles
Memory transaction
data driven by FSMC
ADDSET
1HCLK
data driven by FSMC
(DATAST + 1)
HCLK cycles
1HCLK
(DATAST + 1)
HCLK cycles
RM0090
ai15562
ai15563